DJ-Pandemics have to be linked to their backgrounds. Without World War 1 the Spanish Flu very likely could have been limited. Also the Black Death has links with both wars and climate changes...both the end of the West- and East Roman empires have pandemic links...

Climate "change/collapse" will bring both more extreme weather and earthquakes.

Weather [url]http://arctic-news.blogspot.com/2023/04/ipcc-keeps-downplaying-the-danger-even-as-reality-strikes.html[/url] or http://arctic-news.blogspot.com/2023/04/ipcc-keeps-downplaying-the-danger-even-as-reality-strikes.html ;

As illustrated by the above image, the daily sea surface temperature (SST) between 60°South and 60°North was at a record high on April 2, 2023, i.e. the highest temperature in the NOAA record that started in 1981.

This record high sea surface temperature comes as we're moving into a new El Niño, as illustrated by the image on the right, adapted from NOAA.

DJ, to keep it short and simple-higher sea surface temperatures bring more/stronger storms now hitting the US, a very bad monsoon-with flooding in South Asia...

It also brings less ice pushing down the underlying earth on Greenland, Antarctica, several other parts of the globe-resulting in an increase of seismic events. 

[url]https://earthquake.usgs.gov/earthquakes/map/?extent=-80.2385,-319.92188&extent=84.9901,130.07813&range=week&magnitude=4.5&settings=true[/url] or https://earthquake.usgs.gov/earthquakes/map/?extent=-80.2385,-319.92188&extent=84.9901,130.07813&range=week&magnitude=4.5&settings=true 

We did see several strong deep earthquakes the last week...

[url]https://earthquake.usgs.gov/earthquakes/eventpage/us6000k1mn/executive[/url] or https://earthquake.usgs.gov/earthquakes/eventpage/us6000k1mn/executive ;

and [url]https://earthquake.usgs.gov/earthquakes/eventpage/us6000k1id/executive[/url] or https://earthquake.usgs.gov/earthquakes/eventpage/us6000k1id/executive ;

DJ, May result in a higher earthquake risk for the (West) Pacific....[url]https://en.wikipedia.org/wiki/Fukushima_nuclear_disaster[/url] or https://en.wikipedia.org/wiki/Fukushima_nuclear_disaster there are concerns on the structural safety of the Fukushima reactors damaged by the explosions in 2011. 

[url]https://earthquake.usgs.gov/earthquakes/eventpage/us6000k49j/executive[/url] or https://earthquake.usgs.gov/earthquakes/eventpage/us6000k49j/executive ;

DJ In2ThinAir [url]https://www.youtube.com/watch?v=r1rcVcx1o_s[/url] or https://www.youtube.com/watch?v=r1rcVcx1o_s ; Here we go again, Another VERY large 7.0 Earthquake at almost 400 MILES IN DEPTH. PLEASE Like & Share these videos to your Social Media Platforms. it Helps more then you know and please tell me your thoughts! SOURCE LINKS BELOW!  In many cases in the past when an earthquake of this depth takes place we see larger more shallow Quakes take place within about 2-3 days so This also an Earthquake Warning. 

There may be some statistics linking deep quakes with stronger shallow quakes later on...however it does not seem to be the "law"....

Of course major natural disasters in pandemic times are a bad combination...

-[url]https://en.wikipedia.org/wiki/2023_Atlantic_hurricane_season[/url] or https://en.wikipedia.org/wiki/2023_Atlantic_hurricane_season ;

Pre-season forecasts[edit]

On December 6, 2022, TSR released the first early prediction for the 2023 Atlantic season, predicting a slightly below average year with 13 named storms, 6 hurricanes, and 3 major hurricanes.^[3] Their updated prediction on April 6, 2023, called for a similar number of hurricanes and major hurricanes, but reduced the number of named storms by one.^[4] The following day, the University of Arizona (UA) posted their forecast for a very busy season featuring 19 named storms, 9 hurricanes, 5 major hurricanes, and an ACE index of 163 units.^[5] On April 13, CSU researchers released their prediction of 13 named storms, 6 hurricanes, 2 major hurricanes, and an ACE index of 100 units.^[10] Also on April 13, TWC posted their forecast for 2023, calling for 15 named storms, 7 hurricanes, and 3 major hurricanes.^[7] While most organizations expressed growing confidence in the development of an El Niño, which typically suppresses Atlantic hurricane activity, TWC, UA and CSU in particular noted that well above average ocean temperatures in the Atlantic basin could yield greater activity, particularly if a weaker El Niño event materializes.^[6]

and;

The following list of names will be used for named storms that form in the North Atlantic in 2023. Retired names, if any, will be announced by the World Meteorological Organization in the spring of 2024. The names not retired from this list will be used again in the 2029 season. This is the same list used in the 2017 season, with the exceptions of Harold, Idalia, Margot, and Nigel, which replaced Harvey, Irma, Maria, and Nate, respectively.

DJ...record high sea surface temperatures could result in more storms...However past seasons did see a lot of sand being transported from Africa-Sahara over the Atlantic limiting storms...Also dry air could mean lower risk of flooding...with more extreme rain events maybe less linked to hurricanes...

DJ-In the east of Ukraine lots of rain did see some Ukraine claims Russia is "using a weather weapon"....not that likely...Russia may have problems from that rain as well...

More rain in some areas could compensate for less snow in winter - keeping supply of water going on. 

Another deep Fiji-quake...[url]https://earthquake.usgs.gov/earthquakes/eventpage/us6000k587/executive[/url] or https://earthquake.usgs.gov/earthquakes/eventpage/us6000k587/executive 

DJ, if a more shallow quake would be an M1-2 stronger that would mean 7.7 to 8.7

looking at 30 day significant the 

[url]https://earthquake.usgs.gov/earthquakes/eventpage/us6000k587/executive[/url] or https://earthquake.usgs.gov/earthquakes/eventpage/us6000k587/executive 

may be the same quake...with some differences in the rapport...

[url]https://www.ventusky.com/?p=11;-9;2&l=gust&t=20230423/0000[/url] or https://www.ventusky.com/?p=11;-9;2&l=gust&t=20230423/0000 stormy weather...

[url]https://earthquake.usgs.gov/earthquakes/eventpage/us7000jvl3/executive[/url] or https://earthquake.usgs.gov/earthquakes/eventpage/us7000jvl3/executive 

DJ, Sumat(e)ra/Indian Ocean coastal zone...afterquake M4,9

[url]https://en.antaranews.com/news/279654/local-government-confirms-no-damage-from-mentawai-earthquake[/url] or https://en.antaranews.com/news/279654/local-government-confirms-no-damage-from-mentawai-earthquake ;

Padang (ANTARA) - The local government of Padang, West Sumatra, stated that no damage was caused by the 6.9-magnitude earthquake centered 177 kilometers northwest of the Mentawai Islands at 3:00 a.m. local time, Tuesday.

"As of Tuesday morning, at 07:00 am (local time), there have been no reports of damage from residents, both small and large," Padang City Regional Secretary Andree Algamar stated in Padang, Tuesday.

Yet another M7+ quake...(M6,9 in Padang ?)

judeusx-interesting link in el nino !

[url]https://earthquake.usgs.gov/earthquakes/eventpage/us7000jwhe/executive[/url] or https://earthquake.usgs.gov/earthquakes/eventpage/us7000jwhe/executive 

DJ, some deep aftershocks...April 18 did see also around M6,6 quakes in that area...may increase volcanic risks (which could affect global weather-block sunlight...)

The Kermadec Islands less deep quake [url]https://earthquake.usgs.gov/earthquakes/eventpage/us6000k6mg/executive[/url] or https://earthquake.usgs.gov/earthquakes/eventpage/us6000k6mg/executive M7.1 at depth 43.1 km -april 24 is in the same region...so increased risks for New Zealand ? Or Indonesia ? 

I followed Dutchsinse years ago...his video's are much to long and predictions -my view- not clear enough...

[url]https://www.youtube.com/watch?v=O0ZeJooUoHQ[/url] or https://www.youtube.com/watch?v=O0ZeJooUoHQ ;Luke Holmquist (I do not know him from earlier video's...) 

"Breaking News: A WARNING has been issued for a major earthquake (6.0+) likely to occur in the San Francisco Bay area on May 1 or May 2. Please take immediate safety precautions and stay alert for any updates. #earthquake #SanFranciscoBay #safetyfirst" http://quakeprediction.com/San%20Fran...

DJ Two claims;

-98% chance M6+ quake San Francisco between may 1 and may 3

-80% chance Tokyo may see M4,2 (like) quake early may

Linking it with magnetosphere (and solar storm ?) 

[url]https://earthquake.usgs.gov/earthquakes/eventpage/us7000jx4q/executive[/url] or https://earthquake.usgs.gov/earthquakes/eventpage/us7000jx4q/executive 

DJ Another very deep quake south of Fiji, north of New Zealand (april 18 and april 28 did see M6,6/6,7 at almost 600 km deep in same area) 

I do not know that much on earthquakes-however if we would be able to predict them earlier it may save lives, limit damage...

[url]https://earthquake.usgs.gov/earthquakes/eventpage/us6000k9mb/executive[/url] or https://earthquake.usgs.gov/earthquakes/eventpage/us6000k9mb/executive ;

see also [url]https://www3.nhk.or.jp/nhkworld/en/news/20230505_17/[/url] or https://www3.nhk.or.jp/nhkworld/en/news/20230505_17/ 

More details are coming in about an earthquake that struck Ishikawa Prefecture on the Sea of Japan coast. Authorities say that so far there have been no reports of damage from tsunami.

The quake struck around 2:42 p.m. on Friday, local time. It registered an upper 6 on the Japanese seismic scale of zero to 7 in the city of Suzu.

Long tremors that could rock high-rise buildings have been recorded in Ishikawa.

The class 3 tremors were felt in the city of Suzu. Experts say they can make it difficult for people to remain standing, and can even topple furniture.

Japan's Meteorological Agency calls this type of shaking "long-period ground motion." It affects people on higher floors.

Local authorities say they have received 2 reports that buildings have collapsed. Officials are trying to confirm the details.

A train operator in the region says that the Hokuriku Shinkansen bullet train service has been disrupted.

DJ, Very likely Jaoan can deal with these kind of quakes...

-

On the Luke Holmquist "calculation" for California may 2 M6+ [url]https://www.youtube.com/watch?v=xFLodC_aCV4[/url] or https://www.youtube.com/watch?v=xFLodC_aCV4 ;

"Update: The 3.6 earthquake that hit NW of San Francisco was a foreshock. A MAJOR earthquake (6.0+) is expected to hit the San Francisco Bay area during the next 48 to 72 hours. #earthquake #SanFranciscoBay" - http://quakeprediction.com/San%20Fran...

DJ, It would be welcome if we could predict earthquakes-build in a way to limit risks...[url]http://quakeprediction.com/San%20Francisco%20Earthquake%20Forecast.html[/url] or http://quakeprediction.com/San%20Francisco%20Earthquake%20Forecast.html magnetic field indication for a quake ? 

There have been claims CO@/Methane release going up also could be warning signs...

[url]https://earthquake.usgs.gov/earthquakes/eventpage/nc73886731/executive[/url] or https://earthquake.usgs.gov/earthquakes/eventpage/nc73886731/executive ;

see also [url]https://www.youtube.com/watch?v=lTv2zcZpq70[/url] or https://www.youtube.com/watch?v=lTv2zcZpq70 ;

🚨 WARNING: The earthquake risk in California is currently at a dangerous level on 05/11 and 05/12. Please stay vigilant, follow emergency protocols, and take all necessary safety precautions to protect yourself and your loved ones. Stay safe, everyone. #earthquakerisk #California -  http://quakeprediction.com/San%20Fran... 5.5 earthquake (possible foreshock) NE of San Francisco confirms peak in risk - 2023-05-11 23:19:41 (UTC) https://earthquake.usgs.gov/earthquak...

DJ, Luke Holmquist repeating claims on California quake risks...There was a M5,5 with location and timing not totally fitting in his earlier claims...still "interesting"...If earthquakes can be predicted based on magnetic field disruptions it may save lives !

So another quake in same area [url]https://halturnerradioshow.com/index.php/en/news-page/world/another-7-4-quake-tsunami-warning-issued[/url] or https://halturnerradioshow.com/index.php/en/news-page/world/another-7-4-quake-tsunami-warning-issued ;

PRELIMINARY EARTHQUAKE PARAMETERS
---------------------------------

  * MAGNITUDE      7.4
  * ORIGIN TIME    0151 UTC MAY 20 2023
  * COORDINATES    23.1 SOUTH  170.4 EAST
  * DEPTH          45 KM / 28 MILES
  * LOCATION       SOUTHEAST OF LOYALTY ISLANDS

downgraded to an M7.1 [url]https://earthquake.usgs.gov/earthquakes/eventpage/us6000kdce/executive[/url] or https://earthquake.usgs.gov/earthquakes/eventpage/us6000kdce/executive ;

DJ The Somalia M5.7 quake later showed up as near Aden-Yemen...so location description changed a bit...now back to the location they (USGS) started with...USGS mixing Loyalty Islands with New Caledonia [url]https://earthquake.usgs.gov/earthquakes/eventpage/us6000kddz/executive[/url] or https://earthquake.usgs.gov/earthquakes/eventpage/us6000kddz/executive ;

DJ-Can be a bit confusing when it is in the same area....

In2thinair [url]https://www.youtube.com/watch?v=g39__GGJlM0[/url] or https://www.youtube.com/watch?v=g39__GGJlM0 linking it to solar activity...

Luke Holmquist is linking quakes with magnetic fields on Earth [url]https://www.youtube.com/watch?v=ylsQFabLVqw[/url] or https://www.youtube.com/watch?v=ylsQFabLVqw 

DJ-Earth itself is a big magnete reacting to solar magnetic waves...it may be a factor in earthquakes...but certainly NOT the only factor...

----------------

Understanding complex events, quakes, weather/climate, pandemics, life may help limiting damage...Of course major earthquakes can be major killers...In Haïti a major quake also was followed by a cholera epidemic killing thousends (with the cholera imported from Nepal in mail for Nepalese-UN-peacekeepers trying to do a good job...). 

The Spanish Flu did kill that many because World War 1 limited information/(international) action to limit spread...

There are lots of things we do not (yet) know of/on earthquakes...The largest ones go M (magnitude) 9 to 9,5 in recent history...that is the last 70 years or so...There is a lot of discussion on maximum quake-strength...An asteroid would be able to create an M.11+ ...could "end" this planet...(there is some discussion on moons being created as an outcome of asteroid strikes...). 

It is very likely "tectonics" can create stronger then M9.5 quakes...upper limit M10 ? Tsunami's-mega waves-can move all over the planet-did so several times the last 25 years...Often the waves in most places do no/little damage...still can be measured...But in Japan, Indonesia tsunami's killed thousends...with waves killing people in East Africa...

--------------

We are allready in a lot of global chaos...Major earthquakes is the last thing we need...Less ice pushing down on Greenland, Antarctica etc. means the land under the ice is rising...it creates quakes...Volcanic activity and quakes also are linked...Major volcanic eruptions do cause food problems...[url]https://en.wikipedia.org/wiki/Year_Without_a_Summer[/url] or https://en.wikipedia.org/wiki/Year_Without_a_Summer ; 

The year 1816 is known as the Year Without a Summer because of severe climate abnormalities that caused average global temperatures to decrease by 0.4–0.7 °C (0.7–1 °F).^[1] Summer temperatures in Europe were the coldest of any on record between the years of 1766 and 2000.^[2] This resulted in major food shortages across the Northern Hemisphere.^[3]

Evidence suggests that the anomaly was predominantly a volcanic winter event caused by the massive 1815 eruption of Mount Tambora in April in the Dutch East Indies (known today as Indonesia). This eruption was the largest in at least 1,300 years (after the hypothesized eruption causing the volcanic winter of 536); its effect in the climate may have been exacerbated by the 1814 eruption of Mayon in the Philippines.

We live in a complex system, pandemics are the outcome of a complex process...

[url]https://earthquake.usgs.gov/earthquakes/eventpage/us7000k36n/executive[/url] or https://earthquake.usgs.gov/earthquakes/eventpage/us7000k36n/executive ;

and [url]https://earthquake.usgs.gov/earthquakes/map/?currentFeatureId=us7000k36l&extent=-40.94671,135.13184&extent=-4.91583,205.44434[/url] or https://earthquake.usgs.gov/earthquakes/map/?currentFeatureId=us7000k36l&extent=-40.94671,135.13184&extent=-4.91583,205.44434 

DJ are in the same location...however USGS (for their reasons) using two different names

There could be links with solar flares...however DJ-I would not be surprised if a volcano would be trying to form in that region....

[url]https://en.wikipedia.org/wiki/2022_Hunga_Tonga%E2%80%93Hunga_Ha%CA%BBapai_eruption_and_tsunami[/url] or https://en.wikipedia.org/wiki/2022_Hunga_Tonga%E2%80%93Hunga_Ha%CA%BBapai_eruption_and_tsunami ;

In December 2021, an eruption began on Hunga Tonga–Hunga Haʻapai, a submarine volcano in the Tongan archipelago in the southern Pacific Ocean.^[6] The eruption reached a very large and powerful climax nearly four weeks later, on 15 January 2022.^[7] Hunga Tonga–Hunga Haʻapai is 65 km (40 mi) north of Tongatapu, the country's main island,^[8] and is part of the highly active Tonga–Kermadec Islands volcanic arc, a subduction zone extending from New Zealand to Fiji.^[9][10] In the Volcanic Explosivity Index scale, the eruption was rated at least a VEI-5.^[1][11] Described by scientists as a "magma hammer", the volcano at its height produced a series of four underwater thrusts, displaced 10 cubic kilometers of rock, ash and sediment, and generated the largest atmospheric explosion recorded by modern instrumentation.^[7]

The eruption caused tsunamis in Tonga, Fiji, American Samoa, Vanuatu, and along the Pacific rim, including damaging tsunamis in New Zealand, Japan, the United States, the Russian Far East, Chile, and Peru. At least four people were killed, some were injured, and some remain possibly missing in Tonga from tsunami waves up to 20 m (66 ft) high. Tsunami waves with run-up heights up to 45 m (148 ft) struck the uninhabited island of Tofua. Two people drowned in Peru when 2 m (6 ft 7 in) waves struck the coast. It was the largest volcanic eruption since the 1991 eruption of Mount Pinatubo, and the most powerful eruption since the 1883 eruption of Krakatoa.^[12] NASA determined that the eruption was "hundreds of times more powerful" than the atomic bomb dropped on Hiroshima.^[13] The eruption was the largest explosion recorded in the atmosphere by modern instrumentation, far larger than any 20th century volcanic event or nuclear bomb test. It is thought that in recent centuries, only the Krakatoa eruption of 1883 rivalled the atmospheric disturbance produced.^[14][15]

DJ, a major volcanic eruption will influence global weather, can be catastrophic...[url]https://en.wikipedia.org/wiki/Supervolcano[/url] or https://en.wikipedia.org/wiki/Supervolcano ;

A supervolcano is a volcano that has had an eruption with a Volcanic Explosivity Index (VEI) of 8, the largest recorded value on the index. This means the volume of deposits for such an eruption is greater than 1,000 cubic kilometers (240 cubic miles).^[1]

Location of Yellowstone hotspot over time. Numbers indicate millions of years before the present.

Satellite image of Lake Toba, the site of a VEI 8 eruption c. 75,000 years ago

Cross-section through Long Valley Caldera

Supervolcanoes occur when magma in the mantle rises into the crust but is unable to break through it. Pressure builds in a large and growing magma pool until the crust is unable to contain the pressure and ruptures. This can occur at hotspots (for example, Yellowstone Caldera) or at subduction zones (for example, Toba).^[2][3]

Large-volume supervolcanic eruptions are also often associated with large igneous provinces, which can cover huge areas with lava and volcanic ash. These can cause long-lasting climate change (such as the triggering of a small ice age) and threaten species with extinction. The Oruanui eruption of New Zealand's Taupō Volcano (about 26,500 years ago) was the world's most recent VEI-8 eruption.^[4]

DJ...again I am NOT an expert...just trying to understand events...

[url]https://www.youtube.com/watch?v=_q1uvnLa4Yg[/url] or https://www.youtube.com/watch?v=_q1uvnLa4Yg in2ThinAir;

Solar Storms & Earthquakes Once again!     So... We basically predicted a Caribbean Earthquake 2 days ago and here we sit with a 6.6 striking near Panama. The sun is producing yet MORE concerning sunspots that NOAA is expecting to become extremely active even within hours. This is going to be a trend we see moving forward. Typhoon MAYWAR may hit as fast at 190 MPH winds as it approaches Taiwan, All we can do is hope for the best. 

DJ "Maywar" is expected to stop-move north before it reaches Taiwan...still may see windspeeds close to 200mph/320 kmh...extreme storm...

[url]https://www.tropicaltidbits.com/storminfo/[/url] or https://www.tropicaltidbits.com/storminfo/ following storms...first Atlantic storm may be forming however not hurricanes are expected yet...Sea Surface temperature in many places already hot...with El Nino forming it only will warm more...

This will translate into stronger storms/more rain-flooding...With also more droughts in other places...A mix of drought for months-then extreme rain-can bring a lot of destruction. 

A.o. in NE Africa a famine may see millions of people starving...We can prevent it...but "we" rather spend trillions on weapons-wars...only getting a few very rich...

DJ-Since a "hot ocean" increases melt of polar ice and seafloor permafrost we may see more methane release...Part of that release could be "explosive"...

Also less land ice pushing Antarctica, Greenland, Himalaya down the underlying landmass will tend to rise...increasing seismic/volcanic risks...There are at least two volcanos in Antarctica...Less landice, warmer temperatures may increase volcanic risks there...

A major volcanic eruption may decrease global temperature -which may decrease further food production. This even further is worsening the already major food crisis...Also air quality could be at risk because of volcanic ash, wildfires...

DJ, Another "crazy/unusual" seismic event [url]https://earthquake.usgs.gov/earthquakes/eventpage/us7000k54z/executive[/url] or https://earthquake.usgs.gov/earthquakes/eventpage/us7000k54z/executive ; 

A very shallow quake...I do not know how deep the ocean is in that area-quake was at "0,0 km depth" ?????

[url]https://halturnerradioshow.com/index.php/en/news-page/world/magnitude-6-2-quake-in-pacific-off-new-zeland-depth-0-0km-tsunami-warning-buoys-out-of-service-offline[/url] or https://halturnerradioshow.com/index.php/en/news-page/world/magnitude-6-2-quake-in-pacific-off-new-zeland-depth-0-0km-tsunami-warning-buoys-out-of-service-offline 

A Magntiude 6.2 earthquake has taken place in the South Pacific Ocean, 468 miles from southern New Zealand, but the US Geological Survey says the depth of the wuake is ZERO point ZERO kilometers!   Right AT the surface????   That could trigger a tsunami, but the warning buoys are all OFFLINE (broken).  

-

Worse, according to the National Data Buoy Center, the U.S. Tsunami Warning Buoys down there . . . . are OFFLINE and OUT OF SERVICE!   No one knows if a Tsunami is coming.

DJ [url]https://www.nzherald.co.nz/nz/one-of-new-zealands-biggest-earthquakes-of-year-just-struck-in-puysegur-trench-but-no-one-felt-it/KFPNWH7AZ5DXZPIE3E574QQZA4/[/url] or https://www.nzherald.co.nz/nz/one-of-new-zealands-biggest-earthquakes-of-year-just-struck-in-puysegur-trench-but-no-one-felt-it/KFPNWH7AZ5DXZPIE3E574QQZA4/ 

One of New Zealand’s biggest earthquakes of the year struck at 2.21pm this afternoon, in an area with proven potential to generate tsunamis.

But such was the shallow 5.9 quake’s long distance from the mainland – it hit 450km south of the South Island, and 285km southwest of the remote Snares Islands – that just one person reported feeling it on GeoNet.

It happened to strike near a little-understood seismic zone that’s produced some of the most powerful earthquakes in New Zealand’s recent history.

That was the Puysegur Trench: a plate boundary where the Australian plate dives below the Pacific plate - the opposite way to how the two plates subduct in the North Island, in the better-known Hikurangi Subduction Zone.

The boundary stretches for more than 800km south from the South Island, to a point in the wild and windy Southern Ocean, around 400km west of the Auckland Islands.

could it be related to less land-ice on Antarctica-so landmass being less pushed down by that ice-rising slowly ? 

In 2009, the 7.8 Fiordland earthquake struck close to the northern end of the trench, releasing 25,000 times more energy than the atomic bomb dropped on Nagasaki in 1945 and twisted the South Island, moving Puysegur Pt on the southwestern tip of the island 30cm closer to Australia.

Its remote location, near Dusky Sound, meant there was relatively little damage.

A magnitude 7.2 quake hit the trench itself in November 2004 – a month before an 8.1 quake near the trench caused shaking felt as far as Tasmania.

GeoNet duty seismologist Dr Jonathan Hanson said we could be reasonably confident this afternoon’s quake was related to subduction zone processes in the area.

“The fact that we see quite a lot of events located in a really similar area reinforces that it’s likely to be related to some ongoing processes there.”

In the past 20 years, scientists have located about 100 events in the region.

what is the potential maximum magnitude of the combination of fault-lines south from New Zealand-to Samoa ? Recent history did see an M8.1 in 2004...

In strike-slip faulting, each side of the crustal block slides past the other without uplift and down-thrust, while in reverse faulting, the block above the fault moves up relative to the block below the fault.

“That’s quite an interesting phenomenon itself, that we can be seeing two distinct kinds of earthquake activity in this area,” he said.

“But the main thing to take away from this, is that it’s a reminder we have a subduction zone off the South Island that is productive and capable of generating large, tsunamigenic events.”

In this afternoon’s case, no tsunami threat to New Zealand had been identified.

Maybe satellites did take over the job (tsunami-watch) from buoys ? But it may be south of New Zealand-and some other areaś-may be hard to get a good view on...