It was really bad in 1700, and will be far worse next time: www.earthquakescanada.nrcan.gc.ca/historic-his...
October 31, 2026 at 6:11 PM
It was really bad in 1700, and will be far worse next time: www.earthquakescanada.nrcan.gc.ca/historic-his...
📣 PRESS RELEASE 📣 OPEN ACCESS 🔥 In a new #BSSA paper, scientists present 3D simulations of ground motion for a hypothetical set of 36 full-margin Cascadia megathrust earthquakes. These simulations help inform seismic hazard estimates. ⚒️
Paper: buff.ly/PBB4G7J
Press release: buff.ly/A9wvUwc
Paper: buff.ly/PBB4G7J
Press release: buff.ly/A9wvUwc
November 1, 2026 at 2:01 AM
📣 PRESS RELEASE 📣 OPEN ACCESS 🔥 In a new #BSSA paper, scientists present 3D simulations of ground motion for a hypothetical set of 36 full-margin Cascadia megathrust earthquakes. These simulations help inform seismic hazard estimates. ⚒️
Paper: buff.ly/PBB4G7J
Press release: buff.ly/A9wvUwc
Paper: buff.ly/PBB4G7J
Press release: buff.ly/A9wvUwc
The fact that it's called the Megathrust is probably the main reason people don't take it seriously enough
October 31, 2026 at 5:12 PM
The fact that it's called the Megathrust is probably the main reason people don't take it seriously enough
The Day the Whole Nankai Megathrust Broke
Narration and some visuals are AI-assisted.
Source: Wikipedia (CC BY-SA 4.0)
#1707hoeiearthquake #onthisday #history #todayinhistory #anniversary
Narration and some visuals are AI-assisted.
Source: Wikipedia (CC BY-SA 4.0)
#1707hoeiearthquake #onthisday #history #todayinhistory #anniversary
October 28, 2026 at 12:13 PM
The Day the Whole Nankai Megathrust Broke
Narration and some visuals are AI-assisted.
Source: Wikipedia (CC BY-SA 4.0)
#1707hoeiearthquake #onthisday #history #todayinhistory #anniversary
Narration and some visuals are AI-assisted.
Source: Wikipedia (CC BY-SA 4.0)
#1707hoeiearthquake #onthisday #history #todayinhistory #anniversary
25 October 2010 14:42 UT
Mw7.8 earthquake at Sunda megathrust hit Mentawai Is., offshore Sumatra (Indonesia) causing a 4-7 m tsunami and 603 people killed or missing. Felt in Singapore. A "tsunami earthquake".
earthquake.usgs.gov/earthquakes/...
link.springer.com/article/10.1...
pandora.girona.cat
Mw7.8 earthquake at Sunda megathrust hit Mentawai Is., offshore Sumatra (Indonesia) causing a 4-7 m tsunami and 603 people killed or missing. Felt in Singapore. A "tsunami earthquake".
earthquake.usgs.gov/earthquakes/...
link.springer.com/article/10.1...
pandora.girona.cat
October 25, 2026 at 12:46 PM
25 October 2010 14:42 UT
Mw7.8 earthquake at Sunda megathrust hit Mentawai Is., offshore Sumatra (Indonesia) causing a 4-7 m tsunami and 603 people killed or missing. Felt in Singapore. A "tsunami earthquake".
earthquake.usgs.gov/earthquakes/...
link.springer.com/article/10.1...
pandora.girona.cat
Mw7.8 earthquake at Sunda megathrust hit Mentawai Is., offshore Sumatra (Indonesia) causing a 4-7 m tsunami and 603 people killed or missing. Felt in Singapore. A "tsunami earthquake".
earthquake.usgs.gov/earthquakes/...
link.springer.com/article/10.1...
pandora.girona.cat
📣 PRESS RELEASE 📣 OPEN ACCESS 🔥 New 3D simulations of ground motion for a hypothetical set of 36 full-margin Cascadia megathrust earthquakes can help inform seismic hazard estimates for the region. #BSSA ⚒️
Paper: buff.ly/PBB4G7J
Press release: buff.ly/A9wvUwc
Paper: buff.ly/PBB4G7J
Press release: buff.ly/A9wvUwc
October 24, 2026 at 10:02 PM
📣 PRESS RELEASE 📣 OPEN ACCESS 🔥 New 3D simulations of ground motion for a hypothetical set of 36 full-margin Cascadia megathrust earthquakes can help inform seismic hazard estimates for the region. #BSSA ⚒️
Paper: buff.ly/PBB4G7J
Press release: buff.ly/A9wvUwc
Paper: buff.ly/PBB4G7J
Press release: buff.ly/A9wvUwc
#TimeWillTell ꩜*
#Greece 🇬🇷 #Egypt 🇪🇬 #Türkiye 🇹🇷 #Cyprus 🇨🇾 #MediterraneanSea #IonianSea #AegeanSea #AdriaticSea #TyrrhenianSea
• THE #HELLENIC #ARC •
#October #24th ⋅ #2026
✦ M 8.1 #Megathrust #Earthquake
✧ #MediterraneanSea #Tsunami 🌊
• #VolcanicEruption 🌋
#Greece 🇬🇷 #Egypt 🇪🇬 #Türkiye 🇹🇷 #Cyprus 🇨🇾 #MediterraneanSea #IonianSea #AegeanSea #AdriaticSea #TyrrhenianSea
• THE #HELLENIC #ARC •
#October #24th ⋅ #2026
✦ M 8.1 #Megathrust #Earthquake
✧ #MediterraneanSea #Tsunami 🌊
• #VolcanicEruption 🌋
October 23, 2026 at 4:49 PM
#TimeWillTell ꩜*
#Greece 🇬🇷 #Egypt 🇪🇬 #Türkiye 🇹🇷 #Cyprus 🇨🇾 #MediterraneanSea #IonianSea #AegeanSea #AdriaticSea #TyrrhenianSea
• THE #HELLENIC #ARC •
#October #24th ⋅ #2026
✦ M 8.1 #Megathrust #Earthquake
✧ #MediterraneanSea #Tsunami 🌊
• #VolcanicEruption 🌋
#Greece 🇬🇷 #Egypt 🇪🇬 #Türkiye 🇹🇷 #Cyprus 🇨🇾 #MediterraneanSea #IonianSea #AegeanSea #AdriaticSea #TyrrhenianSea
• THE #HELLENIC #ARC •
#October #24th ⋅ #2026
✦ M 8.1 #Megathrust #Earthquake
✧ #MediterraneanSea #Tsunami 🌊
• #VolcanicEruption 🌋
#TimeWillTell ꩜*
#Greece 🇬🇷 #Egypt 🇪🇬 #Türkiye 🇹🇷 #Cyprus 🇨🇾 #MediterraneanSea #IonianSea #AegeanSea #AdriaticSea #TyrrhenianSea
• THE #HELLENIC #ARC •
#October #24th ⋅ #2026
✦ M 8.1 #Megathrust #Earthquake
✧ #MediterraneanSea #Tsunami 🌊
• #VolcanicEruption 🌋
#Greece 🇬🇷 #Egypt 🇪🇬 #Türkiye 🇹🇷 #Cyprus 🇨🇾 #MediterraneanSea #IonianSea #AegeanSea #AdriaticSea #TyrrhenianSea
• THE #HELLENIC #ARC •
#October #24th ⋅ #2026
✦ M 8.1 #Megathrust #Earthquake
✧ #MediterraneanSea #Tsunami 🌊
• #VolcanicEruption 🌋
October 22, 2026 at 2:19 PM
#TimeWillTell ꩜*
#Greece 🇬🇷 #Egypt 🇪🇬 #Türkiye 🇹🇷 #Cyprus 🇨🇾 #MediterraneanSea #IonianSea #AegeanSea #AdriaticSea #TyrrhenianSea
• THE #HELLENIC #ARC •
#October #24th ⋅ #2026
✦ M 8.1 #Megathrust #Earthquake
✧ #MediterraneanSea #Tsunami 🌊
• #VolcanicEruption 🌋
#Greece 🇬🇷 #Egypt 🇪🇬 #Türkiye 🇹🇷 #Cyprus 🇨🇾 #MediterraneanSea #IonianSea #AegeanSea #AdriaticSea #TyrrhenianSea
• THE #HELLENIC #ARC •
#October #24th ⋅ #2026
✦ M 8.1 #Megathrust #Earthquake
✧ #MediterraneanSea #Tsunami 🌊
• #VolcanicEruption 🌋
Ancaman Megathrust Mengintai Cilacap, BMKG Catat 1.801 Gempa Sejak 2009
WARTABANYUMAS, CILACAP – Badan Meteorologi, Klimatologi, dan Geofisika (BMKG) mencatat sebanyak 1.801 kejadian gempa bumi di Cilacap dan wilayah sekitarnya selama periode 2009 hingga Maret 2026, sehingga kesiapsiagaan…
WARTABANYUMAS, CILACAP – Badan Meteorologi, Klimatologi, dan Geofisika (BMKG) mencatat sebanyak 1.801 kejadian gempa bumi di Cilacap dan wilayah sekitarnya selama periode 2009 hingga Maret 2026, sehingga kesiapsiagaan…
Ancaman Megathrust Mengintai Cilacap, BMKG Catat 1.801 Gempa Sejak 2009
WARTABANYUMAS, CILACAP – Badan Meteorologi, Klimatologi, dan Geofisika (BMKG) mencatat sebanyak 1.801 kejadian gempa bumi di Cilacap dan wilayah sekitarnya selama periode 2009 hingga Maret 2026, sehingga kesiapsiagaan menghadapi ancaman gempa dan tsunami di pesisir selatan Jawa perlu terus diperkuat. Upaya meningkatkan kesiapan masyarakat tersebut dilakukan BMKG melalui kegiatan Sekolah Lapang Gempa Bumi dan Tsunami di Aula Diklat Praja, Jalan Jenderal Sudirman, Cilacap, Rabu (21/10/2026), yang melibatkan pemerintah daerah, BPBD, TNI-Polri, relawan, kalangan pendidikan, media, serta masyarakat. Kepala Stasiun Geofisika BMKG Banjarnegara, Hery Susanto Wibowo, menjelaskan bahwa kegiatan ini dirancang untuk membekali masyarakat dengan pengetahuan kebencanaan sekaligus memperkuat sinergi berbagai pihak dalam menghadapi potensi bencana.
wartabanyumas.com
October 21, 2026 at 10:17 AM
Ancaman Megathrust Mengintai Cilacap, BMKG Catat 1.801 Gempa Sejak 2009
WARTABANYUMAS, CILACAP – Badan Meteorologi, Klimatologi, dan Geofisika (BMKG) mencatat sebanyak 1.801 kejadian gempa bumi di Cilacap dan wilayah sekitarnya selama periode 2009 hingga Maret 2026, sehingga kesiapsiagaan…
WARTABANYUMAS, CILACAP – Badan Meteorologi, Klimatologi, dan Geofisika (BMKG) mencatat sebanyak 1.801 kejadian gempa bumi di Cilacap dan wilayah sekitarnya selama periode 2009 hingga Maret 2026, sehingga kesiapsiagaan…
Right now the biggest risk area is the Nankai Megathrust, which has been locked up ever since the Great Hanshin Quake in the mid 1990s
A recurrence of the Great Kanto Earthquake isn't completely inconceivable either sometime in the late part of this century, so maybe looking at Tokyo, too....
October 19, 2026 at 8:04 AM
Right now the biggest risk area is the Nankai Megathrust, which has been locked up ever since the Great Hanshin Quake in the mid 1990s
Nankai megathrust earthquakes - Wikipedia
en.wikipedia.org
October 16, 2026 at 3:51 PM
A 9.9 would be on the order of 10x as powerful as the megathrust earthquake in Indonesia in 2004 that caused the tsunami that killed a quarter million causes and the Tohoku megathrust quake that caused the Fukushima disaster.
Combined.
Combined.
The Japan Meteorological Agency withdrew an earthquake early warning issued Friday afternoon after initially forecasting what would have been the strongest earthquake in history. 👉 ebx.sh/aWsuQ6
October 16, 2026 at 3:52 PM
A 9.9 would be on the order of 10x as powerful as the megathrust earthquake in Indonesia in 2004 that caused the tsunami that killed a quarter million causes and the Tohoku megathrust quake that caused the Fukushima disaster.
Combined.
Combined.
📣 PRESS RELEASE 📣 OPEN ACCESS 🔥 3D Broadband Ground‐Motion Simulations of Cascadia Megathrust Earthquakes: Full‐Margin Scenarios Incorporating Variable Magnitudes and Frontal Thrust Splay Faulting #BSSA ⚒️
PRESS RELEASE: buff.ly/loXZ9Sp
PAPER: buff.ly/Uk9CRnx
PRESS RELEASE: buff.ly/loXZ9Sp
PAPER: buff.ly/Uk9CRnx
October 16, 2026 at 4:03 PM
📣 PRESS RELEASE 📣 OPEN ACCESS 🔥 3D Broadband Ground‐Motion Simulations of Cascadia Megathrust Earthquakes: Full‐Margin Scenarios Incorporating Variable Magnitudes and Frontal Thrust Splay Faulting #BSSA ⚒️
PRESS RELEASE: buff.ly/loXZ9Sp
PAPER: buff.ly/Uk9CRnx
PRESS RELEASE: buff.ly/loXZ9Sp
PAPER: buff.ly/Uk9CRnx
The 2020 Sand Point earthquake produced a tsunami its strike-slip mechanism can't explain. Grapenthin et al. find that the tsunami was caused by silent slip on the shallow megathrust, triggered minutes after the mainshock.
🔗 seismica.library.mcgill.ca/article/view...
@akearthquake.bsky.social
🔗 seismica.library.mcgill.ca/article/view...
@akearthquake.bsky.social
October 13, 2026 at 4:19 PM
The 2020 Sand Point earthquake produced a tsunami its strike-slip mechanism can't explain. Grapenthin et al. find that the tsunami was caused by silent slip on the shallow megathrust, triggered minutes after the mainshock.
🔗 seismica.library.mcgill.ca/article/view...
@akearthquake.bsky.social
🔗 seismica.library.mcgill.ca/article/view...
@akearthquake.bsky.social
*earthquakes on the megathrust, that should read.
October 13, 2026 at 5:39 PM
*earthquakes on the megathrust, that should read.
February 27, 2010, 3:34 a.m.: a magnitude 8.8 megathrust tore 500 km of plate boundary off Chile. About 520 dead, a tsunami, a city moved 3 metres west — and the day itself got shorter.
The story of the Maule earthquake:
https://tremr.app/articles/maule-chile-2010
#earthquake #tremr
The story of the Maule earthquake:
https://tremr.app/articles/maule-chile-2010
#earthquake #tremr
October 13, 2026 at 6:36 PM
February 27, 2010, 3:34 a.m.: a magnitude 8.8 megathrust tore 500 km of plate boundary off Chile. About 520 dead, a tsunami, a city moved 3 metres west — and the day itself got shorter.
The story of the Maule earthquake:
https://tremr.app/articles/maule-chile-2010
#earthquake #tremr
The story of the Maule earthquake:
https://tremr.app/articles/maule-chile-2010
#earthquake #tremr
News alert 🚨 Megathrust earthquake off the west coast of Panama.
October 9, 2026 at 6:05 PM
News alert 🚨 Megathrust earthquake off the west coast of Panama.
To clarify, this megathrust earthquake is inland in Panama, and not under the water.
News alert 🚨 Megathrust earthquake off the west coast of Panama.
October 9, 2026 at 6:12 PM
To clarify, this megathrust earthquake is inland in Panama, and not under the water.
(Water that's shallower and tied up in clays/other basalt weathering products instead of serpentinite gets forced out of the plate by the approx. end of the megathrust so can't drive slab earthquakes.)
October 8, 2026 at 8:23 PM
(Water that's shallower and tied up in clays/other basalt weathering products instead of serpentinite gets forced out of the plate by the approx. end of the megathrust so can't drive slab earthquakes.)
Pakar UNAIR Beber Upaya untuk Cegah Kepanikan Saat Megathrust, Apa yang Harus Dilakukan? - https://www.goodnewsfromindonesia.id/indonesiana/nasional/pakar-unair-beber-upaya-untuk-cegah-kepanikan-saat-megathrust-apa-yang-harus-dilakukan
Pakar UNAIR Beber Upaya untuk Cegah Kepanikan Saat Megathrust, Apa yang Harus Dilakukan?
Kesiapsiagaan bencana harus diterapkan secara komprehensif, mulai dari pemerintah, komunitas lokal, dan unit keluarga.
www.goodnewsfromindonesia.id
October 8, 2026 at 4:58 PM
Pakar UNAIR Beber Upaya untuk Cegah Kepanikan Saat Megathrust, Apa yang Harus Dilakukan? - https://www.goodnewsfromindonesia.id/indonesiana/nasional/pakar-unair-beber-upaya-untuk-cegah-kepanikan-saat-megathrust-apa-yang-harus-dilakukan
We have a new paper about a weird earthquake. The 2020 Sand Point event was dominantly strike-slip, but generated a tsunami. Delayed, triggered rupture on the megathrust in an area that had stress increase due to the mainshock can explain the tsunami. ⚒️🧪🌊
seismica.library.mcgill.ca/article/view...
seismica.library.mcgill.ca/article/view...
Triggered Shallow Megathrust Slip following the 2020 Mw7.6 Sand Point (Alaska) Strike-Slip Earthquake Explains its Tsunami
On October 19, 2020, the Mw7.6 Sand Point earthquake occurred near the Shumagin Islands in Alaska. Moment tensor solutions suggest oblique strike-slip faulting, but the earthquake was accompanied by a...
seismica.library.mcgill.ca
October 6, 2026 at 9:09 PM
We have a new paper about a weird earthquake. The 2020 Sand Point event was dominantly strike-slip, but generated a tsunami. Delayed, triggered rupture on the megathrust in an area that had stress increase due to the mainshock can explain the tsunami. ⚒️🧪🌊
seismica.library.mcgill.ca/article/view...
seismica.library.mcgill.ca/article/view...