Gilles Mazet-Roux
@gmazet.bsky.social
Research engineer in seismology. Uprooted Savoyard born in 332 ppm.
#Kamtchatka earthquakes sequences update. The activity remains concentrated to the north of the rupture zone.
September 19, 2025 at 6:40 AM
#Kamtchatka earthquakes sequences update. The activity remains concentrated to the north of the rupture zone.
August 5, 2025 at 7:00 AM
48 hours hours after the #tsunami hit the Marquises Islands in French Polynesia, the waters in Nuku Hiva harbour are still agitated. (Source data.shom.fr)
August 1, 2025 at 9:40 AM
48 hours hours after the #tsunami hit the Marquises Islands in French Polynesia, the waters in Nuku Hiva harbour are still agitated. (Source data.shom.fr)
The magnitude 8.8 earthquake that struck #Kamtchatka on 29 July produced approximately 230 #aftershocks of magnitude 4 and above within 30 hours, which were distributed over an area measuring approximately 350 x 80 km.
(Earthquake data: @lastquake.emsc.eu )
(Earthquake data: @lastquake.emsc.eu )
July 31, 2025 at 9:00 AM
The magnitude 8.8 earthquake that struck #Kamtchatka on 29 July produced approximately 230 #aftershocks of magnitude 4 and above within 30 hours, which were distributed over an area measuring approximately 350 x 80 km.
(Earthquake data: @lastquake.emsc.eu )
(Earthquake data: @lastquake.emsc.eu )
The M8.7 aftershocks are distributed on a ~ 350-km long x 100 km wide area.
But actually the seismic crisis bagan on July 20 in #Kamtchatka. The foreshock sequence was concentrated on the north-east end of the rupture.
#Tsunami
But actually the seismic crisis bagan on July 20 in #Kamtchatka. The foreshock sequence was concentrated on the north-east end of the rupture.
#Tsunami
July 30, 2025 at 11:24 AM
The M8.7 aftershocks are distributed on a ~ 350-km long x 100 km wide area.
But actually the seismic crisis bagan on July 20 in #Kamtchatka. The foreshock sequence was concentrated on the north-east end of the rupture.
#Tsunami
But actually the seismic crisis bagan on July 20 in #Kamtchatka. The foreshock sequence was concentrated on the north-east end of the rupture.
#Tsunami
Finally, the seismic signal at ANGG station in #Greenland confirms the seismic origin of this event with nice P and S seismic waves and an aftershock 5 minutes later.
June 21, 2025 at 12:02 PM
Finally, the seismic signal at ANGG station in #Greenland confirms the seismic origin of this event with nice P and S seismic waves and an aftershock 5 minutes later.
However, there has been few earthquakes in this area in the past so let's see...
June 21, 2025 at 11:34 AM
However, there has been few earthquakes in this area in the past so let's see...
May 28, 2025 at 2:14 PM
The #landslide in #Blatten valley generated a strong seismic signal which can be observed at a distance of 400 km.
#Seiscomp
#Seiscomp
May 28, 2025 at 2:09 PM
The #landslide in #Blatten valley generated a strong seismic signal which can be observed at a distance of 400 km.
#Seiscomp
#Seiscomp
White House may seek to slash NASA’s science budget by 50 percent
arstechnica.com/space/2025/0...
arstechnica.com/space/2025/0...
April 14, 2025 at 11:06 AM
White House may seek to slash NASA’s science budget by 50 percent
arstechnica.com/space/2025/0...
arstechnica.com/space/2025/0...
Sunday update.
Seismic activity has decreased significantly since last Thursday, but it hasn't stopped. To be continued ...
#Santorini #Amorgos
Seismic activity has decreased significantly since last Thursday, but it hasn't stopped. To be continued ...
#Santorini #Amorgos
February 16, 2025 at 5:12 PM
Sunday update.
Seismic activity has decreased significantly since last Thursday, but it hasn't stopped. To be continued ...
#Santorini #Amorgos
Seismic activity has decreased significantly since last Thursday, but it hasn't stopped. To be continued ...
#Santorini #Amorgos
SW Iceland seismic swarms before eruptions of 19/03/2021 and 03/08/2022.
February 14, 2025 at 7:29 AM
SW Iceland seismic swarms before eruptions of 19/03/2021 and 03/08/2022.
Seismic activity NE of #Santorini has decreased dramatically over the last 24 hours.
This behaviour is similar to that observed in SW Iceland in March 2021 and August 2022, where seismicity almost stopped after the eruption began.
This behaviour is similar to that observed in SW Iceland in March 2021 and August 2022, where seismicity almost stopped after the eruption began.
February 14, 2025 at 7:27 AM
Seismic activity NE of #Santorini has decreased dramatically over the last 24 hours.
This behaviour is similar to that observed in SW Iceland in March 2021 and August 2022, where seismicity almost stopped after the eruption began.
This behaviour is similar to that observed in SW Iceland in March 2021 and August 2022, where seismicity almost stopped after the eruption began.
The latest events (white dots) seem to be concentrated at the north-eastern end of the swarm.
#Santorini #Amorgos
#Santorini #Amorgos
February 11, 2025 at 4:07 PM
The latest events (white dots) seem to be concentrated at the north-eastern end of the swarm.
#Santorini #Amorgos
#Santorini #Amorgos
Well, an excess of M4 (not M4+).
The rounded GR distribution could be interpreted as a lack of M5 or by an excess of M4.
The rounded GR distribution could be interpreted as a lack of M5 or by an excess of M4.
February 10, 2025 at 5:24 PM
Well, an excess of M4 (not M4+).
The rounded GR distribution could be interpreted as a lack of M5 or by an excess of M4.
The rounded GR distribution could be interpreted as a lack of M5 or by an excess of M4.
February 10, 2025 at 7:47 AM
The seismic crisis between #Santorini and #Amorgos has been slowing down a bit during the last 24h and shows a slight migration toward the NE.
February 5, 2025 at 10:16 AM
The seismic crisis between #Santorini and #Amorgos has been slowing down a bit during the last 24h and shows a slight migration toward the NE.
More than 500 earthquakes so far at #Kolumbo volcano, NE of #Santorini
February 3, 2025 at 10:45 AM
More than 500 earthquakes so far at #Kolumbo volcano, NE of #Santorini
Great illustrations of the 1650 eruption and its effects in the region published by #SANTORY project (santory.gr)
February 3, 2025 at 10:15 AM
Great illustrations of the 1650 eruption and its effects in the region published by #SANTORY project (santory.gr)
February 3, 2025 at 10:00 AM
Last update at 07h UTC
February 3, 2025 at 7:37 AM
Last update at 07h UTC
More than 360 earthquakes reported by the EMSC in 6 days. The seismic sequence near #Anydros Island has clearly been intensifying during the latest hours.
#Santorini #Amorgos #Greece.
#Santorini #Amorgos #Greece.
February 2, 2025 at 5:33 PM
More than 360 earthquakes reported by the EMSC in 6 days. The seismic sequence near #Anydros Island has clearly been intensifying during the latest hours.
#Santorini #Amorgos #Greece.
#Santorini #Amorgos #Greece.
The largest shock has felt been on #Santorini Island
February 2, 2025 at 5:02 PM
The largest shock has felt been on #Santorini Island
Hundreds of earthquake in only few days near #Anydros Island, NE of #Santorini in the Cyclades, Greece.
The largest events occurred today, with magnitude 4.7 and 4.8. Apparently not felt by the population.
Source : EMSC @lastquake.bsky.social
The largest events occurred today, with magnitude 4.7 and 4.8. Apparently not felt by the population.
Source : EMSC @lastquake.bsky.social
February 2, 2025 at 4:37 PM
Hundreds of earthquake in only few days near #Anydros Island, NE of #Santorini in the Cyclades, Greece.
The largest events occurred today, with magnitude 4.7 and 4.8. Apparently not felt by the population.
Source : EMSC @lastquake.bsky.social
The largest events occurred today, with magnitude 4.7 and 4.8. Apparently not felt by the population.
Source : EMSC @lastquake.bsky.social