FEO福岡地震観測
@houeieq1707.bsky.social
地球科学や物理学など、理数系科目が好きな学部生です。地震学に特に強い関心があります。個人的な気持ちや、独断と偏見を呟きますので、私の呟くことを鵜呑みにしないでください。
I am an undergraduate student with a passion for earth sciences and physics, with a particularly strong interest in seismology.
I am an undergraduate student with a passion for earth sciences and physics, with a particularly strong interest in seismology.
Reposted by FEO福岡地震観測
⚒️ 🧪
A M6.5 earthquake struck near Acapulco, Mexico today, triggering warning systems and causing tall buildings in Mexico City to sway. How does this event fit into the larger tectonic picture - and what kinds of earthquakes might we expect here?
earthquakeinsights.substack.com/p/m65-subduc...
A M6.5 earthquake struck near Acapulco, Mexico today, triggering warning systems and causing tall buildings in Mexico City to sway. How does this event fit into the larger tectonic picture - and what kinds of earthquakes might we expect here?
earthquakeinsights.substack.com/p/m65-subduc...
M6.5 subduction earthquake strikes near Acapulco, Mexico
Unsurprisingly, also felt in Mexico City
earthquakeinsights.substack.com
January 3, 2026 at 2:10 AM
⚒️ 🧪
A M6.5 earthquake struck near Acapulco, Mexico today, triggering warning systems and causing tall buildings in Mexico City to sway. How does this event fit into the larger tectonic picture - and what kinds of earthquakes might we expect here?
earthquakeinsights.substack.com/p/m65-subduc...
A M6.5 earthquake struck near Acapulco, Mexico today, triggering warning systems and causing tall buildings in Mexico City to sway. How does this event fit into the larger tectonic picture - and what kinds of earthquakes might we expect here?
earthquakeinsights.substack.com/p/m65-subduc...
Reposted by FEO福岡地震観測
Mw=6.8, HOKKAIDO, JAPAN REGION (Depth: 15 km), 2025/12/08 21:52:40 UTC - Full details here: http://geoscope.ipgp.fr/scripts/seismes/fiche.php?seis=us6000rtie
December 8, 2025 at 11:42 PM
Mw=6.8, HOKKAIDO, JAPAN REGION (Depth: 15 km), 2025/12/08 21:52:40 UTC - Full details here: http://geoscope.ipgp.fr/scripts/seismes/fiche.php?seis=us6000rtie
Reposted by FEO福岡地震観測
⚒️ 🧪 Japan just issued a “Subsequent Earthquake Advisory” following a M7.6 earthquake offshore Honshu. What does that mean?
Also: what happened in the earthquake, and why did it trigger a tsunami evacuation, with alerts of waves “up to 3 meters high”?
earthquakeinsights.substack.com/p/m76-earthq...
Also: what happened in the earthquake, and why did it trigger a tsunami evacuation, with alerts of waves “up to 3 meters high”?
earthquakeinsights.substack.com/p/m76-earthq...
M7.6 earthquake strikes offshore Honshu, Japan
Japan issues "Subsequent Earthquake Advisory" due to elevated (but still low) risk of triggered megaquake
earthquakeinsights.substack.com
December 9, 2025 at 12:04 AM
⚒️ 🧪 Japan just issued a “Subsequent Earthquake Advisory” following a M7.6 earthquake offshore Honshu. What does that mean?
Also: what happened in the earthquake, and why did it trigger a tsunami evacuation, with alerts of waves “up to 3 meters high”?
earthquakeinsights.substack.com/p/m76-earthq...
Also: what happened in the earthquake, and why did it trigger a tsunami evacuation, with alerts of waves “up to 3 meters high”?
earthquakeinsights.substack.com/p/m76-earthq...
⚒️ 🧪 Japan just issued a “Subsequent Earthquake Advisory” following a M7.6 earthquake offshore Honshu. What does that mean?
Also: what happened in the earthquake, and why did it trigger a tsunami evacuation, with alerts of waves “up to 3 meters high”?
earthquakeinsights.substack.com/p/m76-earthq...
Also: what happened in the earthquake, and why did it trigger a tsunami evacuation, with alerts of waves “up to 3 meters high”?
earthquakeinsights.substack.com/p/m76-earthq...
M7.6 earthquake strikes offshore Honshu, Japan
Japan issues "Subsequent Earthquake Advisory" due to elevated (but still low) risk of triggered megaquake
earthquakeinsights.substack.com
December 9, 2025 at 8:59 AM
Why do thrust and reverse faults produce such strange and varied surface deformation patterns? A new #SRL paper investigates.⚒️
pubs.geoscienceworld.org/ssa/srl/arti...
pubs.geoscienceworld.org/ssa/srl/arti...
December 9, 2025 at 8:59 AM
Reposted by FEO福岡地震観測
Auto slipmap with regional records (SLIPNEAR method, Géoazur/OCA) M 7.6 Japan Earthquake, 2025-12-08 14:15:10 (UTC)
Plane shallow dipping to the East (strike 179) shown.
Rupt very concentrated around the hypocenter, far from and much deeper than the trench.
Thanks to seismic records through IRIS
Plane shallow dipping to the East (strike 179) shown.
Rupt very concentrated around the hypocenter, far from and much deeper than the trench.
Thanks to seismic records through IRIS
December 8, 2025 at 5:53 PM
Auto slipmap with regional records (SLIPNEAR method, Géoazur/OCA) M 7.6 Japan Earthquake, 2025-12-08 14:15:10 (UTC)
Plane shallow dipping to the East (strike 179) shown.
Rupt very concentrated around the hypocenter, far from and much deeper than the trench.
Thanks to seismic records through IRIS
Plane shallow dipping to the East (strike 179) shown.
Rupt very concentrated around the hypocenter, far from and much deeper than the trench.
Thanks to seismic records through IRIS
Reposted by FEO福岡地震観測
⚒️ 🧪
A satellite took a picture of the tsunami as it crossed the ocean! And other things we’ve learned about the M8.8 Kamchatka earthquake - the sixth large earthquake ever recorded.
earthquakeinsights.substack.com/p/updates-on...
A satellite took a picture of the tsunami as it crossed the ocean! And other things we’ve learned about the M8.8 Kamchatka earthquake - the sixth large earthquake ever recorded.
earthquakeinsights.substack.com/p/updates-on...
Updates on the Kamchatka earthquake
Tsunamis, satellite observations, aftershocks, slip patterns, and more
earthquakeinsights.substack.com
August 8, 2025 at 5:44 PM
⚒️ 🧪
A satellite took a picture of the tsunami as it crossed the ocean! And other things we’ve learned about the M8.8 Kamchatka earthquake - the sixth large earthquake ever recorded.
earthquakeinsights.substack.com/p/updates-on...
A satellite took a picture of the tsunami as it crossed the ocean! And other things we’ve learned about the M8.8 Kamchatka earthquake - the sixth large earthquake ever recorded.
earthquakeinsights.substack.com/p/updates-on...
Finished making the obon mukae dango!
With 13 of them, I can’t make a proper three-tier pyramid, so I’m always stuck wondering how to stack them…
With 13 of them, I can’t make a proper three-tier pyramid, so I’m always stuck wondering how to stack them…
August 13, 2025 at 5:53 AM
Finished making the obon mukae dango!
With 13 of them, I can’t make a proper three-tier pyramid, so I’m always stuck wondering how to stack them…
With 13 of them, I can’t make a proper three-tier pyramid, so I’m always stuck wondering how to stack them…
Reposted by FEO福岡地震観測
⚒️ 🧪
What do we know about the M8.8 earthquake that struck offshore Russia yesterday? We explore patterns in the foreshocks and aftershocks, compare the USGS seismic catalog with a local seismic database, and compare the event to the great 1952 earthquake.
What do we know about the M8.8 earthquake that struck offshore Russia yesterday? We explore patterns in the foreshocks and aftershocks, compare the USGS seismic catalog with a local seismic database, and compare the event to the great 1952 earthquake.
A first look at the Mw8.8 Kamchatka earthquake
Contextualizing our most recent great earthquake
earthquakeinsights.substack.com
July 30, 2025 at 7:37 PM
⚒️ 🧪
What do we know about the M8.8 earthquake that struck offshore Russia yesterday? We explore patterns in the foreshocks and aftershocks, compare the USGS seismic catalog with a local seismic database, and compare the event to the great 1952 earthquake.
What do we know about the M8.8 earthquake that struck offshore Russia yesterday? We explore patterns in the foreshocks and aftershocks, compare the USGS seismic catalog with a local seismic database, and compare the event to the great 1952 earthquake.
3) the transmission tower to the right collapses 4) the plants left of the gate shake differently just before the surface rupture and after indicating possible a change in the seismic waves
May 12, 2025 at 11:23 PM
Reposted by FEO福岡地震観測
2) the upper left corner, while the displacement occurs it will generate a "mount" of dirt that we call moletrack, which commonly produces during surface ruptures.
May 12, 2025 at 4:16 PM
2) the upper left corner, while the displacement occurs it will generate a "mount" of dirt that we call moletrack, which commonly produces during surface ruptures.
Reposted by FEO福岡地震観測
Apparently surface rupture during the Myanmar 2025. I'm very surprised by the weak shaking along the rupture. I'm not sure if this is the main rupture (I would say no - nonetheless, VERY COOL). Author unknown, location Thazi (to be confirmed)
May 12, 2025 at 2:18 AM
Apparently surface rupture during the Myanmar 2025. I'm very surprised by the weak shaking along the rupture. I'm not sure if this is the main rupture (I would say no - nonetheless, VERY COOL). Author unknown, location Thazi (to be confirmed)
Reposted by FEO福岡地震観測
🧪⚒️
A M7.4 earthquake struck yesterday beneath the treacherous waters of the Drake Passage. The quake triggered a tsunami and dozens of aftershocks.
There is a baby tectonic plate here, sandwiched between South America and Antarctica. How did it get here, and what does that mean for earthquakes?
A M7.4 earthquake struck yesterday beneath the treacherous waters of the Drake Passage. The quake triggered a tsunami and dozens of aftershocks.
There is a baby tectonic plate here, sandwiched between South America and Antarctica. How did it get here, and what does that mean for earthquakes?
Unusual M7.4 earthquake strikes south of South America
Thrusting below the treacherous waters of the Drake Passage
earthquakeinsights.substack.com
May 3, 2025 at 5:38 PM
🧪⚒️
A M7.4 earthquake struck yesterday beneath the treacherous waters of the Drake Passage. The quake triggered a tsunami and dozens of aftershocks.
There is a baby tectonic plate here, sandwiched between South America and Antarctica. How did it get here, and what does that mean for earthquakes?
A M7.4 earthquake struck yesterday beneath the treacherous waters of the Drake Passage. The quake triggered a tsunami and dozens of aftershocks.
There is a baby tectonic plate here, sandwiched between South America and Antarctica. How did it get here, and what does that mean for earthquakes?
Reposted by FEO福岡地震観測
Auto slipmap with regional records (SLIPNEAR method, Géoazur/OCA) M 7.5 – DRAKE PASSAGE 2025-05-02 12:58:27.5 UTC
Rupture plane not selected in an automated way. Plane dip to the NE (strike 326) shown.
Rupture propagation mainly to the SE.
Thanks to seismic records through IRIS
Rupture plane not selected in an automated way. Plane dip to the NE (strike 326) shown.
Rupture propagation mainly to the SE.
Thanks to seismic records through IRIS
May 2, 2025 at 5:57 PM
Auto slipmap with regional records (SLIPNEAR method, Géoazur/OCA) M 7.5 – DRAKE PASSAGE 2025-05-02 12:58:27.5 UTC
Rupture plane not selected in an automated way. Plane dip to the NE (strike 326) shown.
Rupture propagation mainly to the SE.
Thanks to seismic records through IRIS
Rupture plane not selected in an automated way. Plane dip to the NE (strike 326) shown.
Rupture propagation mainly to the SE.
Thanks to seismic records through IRIS
Reposted by FEO福岡地震観測
I quickly put together a seismicity map for the region of today’s M7.4 Drake passage #earthquake. An uncommon location for a large thrust event in a tectonically complex area. 🧪⚒️
May 2, 2025 at 5:41 PM
I quickly put together a seismicity map for the region of today’s M7.4 Drake passage #earthquake. An uncommon location for a large thrust event in a tectonically complex area. 🧪⚒️
Reposted by FEO福岡地震観測
Sea level monitoring stations in South America do not appear to show significant #tsunami waves due to the Drake passage #earthquake. One station on Antarctica does show a peak to peak variation of about 40 cm. ⚒️🧪
May 2, 2025 at 5:19 PM
Sea level monitoring stations in South America do not appear to show significant #tsunami waves due to the Drake passage #earthquake. One station on Antarctica does show a peak to peak variation of about 40 cm. ⚒️🧪
Reposted by FEO福岡地震観測
Mw=7.6, DRAKE PASSAGE (Depth: 12 km), 2025/05/02 12:58:26 UTC - Full details here: http://geoscope.ipgp.fr/scripts/seismes/fiche.php?seis=us7000pwkn
May 2, 2025 at 1:38 PM
Mw=7.6, DRAKE PASSAGE (Depth: 12 km), 2025/05/02 12:58:26 UTC - Full details here: http://geoscope.ipgp.fr/scripts/seismes/fiche.php?seis=us7000pwkn
Reposted by FEO福岡地震観測
🧪⚒️
A M7.4 earthquake just occurred off the southern tip of South America: earthquake.usgs.gov/earthquakes/...
Based on the magnitude, location, and type of slip, there is a potential tsunami threat to the coasts of Chile: tsunami.gov/events/PHEB/...
Check updates here: tsunami.gov
A M7.4 earthquake just occurred off the southern tip of South America: earthquake.usgs.gov/earthquakes/...
Based on the magnitude, location, and type of slip, there is a potential tsunami threat to the coasts of Chile: tsunami.gov/events/PHEB/...
Check updates here: tsunami.gov
May 2, 2025 at 1:40 PM
🧪⚒️
A M7.4 earthquake just occurred off the southern tip of South America: earthquake.usgs.gov/earthquakes/...
Based on the magnitude, location, and type of slip, there is a potential tsunami threat to the coasts of Chile: tsunami.gov/events/PHEB/...
Check updates here: tsunami.gov
A M7.4 earthquake just occurred off the southern tip of South America: earthquake.usgs.gov/earthquakes/...
Based on the magnitude, location, and type of slip, there is a potential tsunami threat to the coasts of Chile: tsunami.gov/events/PHEB/...
Check updates here: tsunami.gov
Reposted by FEO福岡地震観測
Uncommon M7.4 reverse faulting #earthquake in the subduction zone in Drake passage south of South America. 🧪⚒️
earthquake.usgs.gov/earthquakes/...
earthquake.usgs.gov/earthquakes/...
May 2, 2025 at 1:50 PM
Uncommon M7.4 reverse faulting #earthquake in the subduction zone in Drake passage south of South America. 🧪⚒️
earthquake.usgs.gov/earthquakes/...
earthquake.usgs.gov/earthquakes/...
Reposted by FEO福岡地震観測
For more context on today’s M6.2 #earthquake in the Sea of Marmara, a figure from Bohnhoff et al. (2013) shows the major North Anatolian Fault Zone segments with potential future rupture scenarios and their associated magnitudes. Today’s quake is located near the center of the Marmara segment. ⚒️🧪
April 23, 2025 at 11:19 AM
For more context on today’s M6.2 #earthquake in the Sea of Marmara, a figure from Bohnhoff et al. (2013) shows the major North Anatolian Fault Zone segments with potential future rupture scenarios and their associated magnitudes. Today’s quake is located near the center of the Marmara segment. ⚒️🧪
Reposted by FEO福岡地震観測
Mw=6.3, TURKEY (Depth: 4 km), 2025/04/23 09:49:10 UTC - Full details here: http://geoscope.ipgp.fr/scripts/seismes/fiche.php?seis=us7000pufs
April 23, 2025 at 10:30 AM
Mw=6.3, TURKEY (Depth: 4 km), 2025/04/23 09:49:10 UTC - Full details here: http://geoscope.ipgp.fr/scripts/seismes/fiche.php?seis=us7000pufs
Reposted by FEO福岡地震観測
Auto slipmap with regional records (SLIPNEAR method, Géoazur/OCA) M 6.2 – Western Turkey - 2025-04-23 09:49:10 (UTC)
EW nodal plane preferred with confidence 65% as the rupture plane. Rupt propagation mainly to the East.
Thanks to seismic records from KOERI
EW nodal plane preferred with confidence 65% as the rupture plane. Rupt propagation mainly to the East.
Thanks to seismic records from KOERI
April 23, 2025 at 11:59 AM
Auto slipmap with regional records (SLIPNEAR method, Géoazur/OCA) M 6.2 – Western Turkey - 2025-04-23 09:49:10 (UTC)
EW nodal plane preferred with confidence 65% as the rupture plane. Rupt propagation mainly to the East.
Thanks to seismic records from KOERI
EW nodal plane preferred with confidence 65% as the rupture plane. Rupt propagation mainly to the East.
Thanks to seismic records from KOERI
Reposted by FEO福岡地震観測
Felipe Vera of @gfz.bsky.social shows an initial bilateral subshear rupture, yet the southward portion propagated much more at supershear velocities, cumulating to a "well over 400 km" long rupture!
www.linkedin.com/posts/freder...
www.linkedin.com/posts/freder...
#myanmar #earthquake | Frederik Tilmann
Slowly, reports from the regions most affected by the #Myanmar #Earthquake are emerging and let us glimpse the scale of the destruction and the human toll…
www.linkedin.com
March 31, 2025 at 8:34 AM
Felipe Vera of @gfz.bsky.social shows an initial bilateral subshear rupture, yet the southward portion propagated much more at supershear velocities, cumulating to a "well over 400 km" long rupture!
www.linkedin.com/posts/freder...
www.linkedin.com/posts/freder...
Reposted by FEO福岡地震観測
🌟OPEN ACCESS🌟In 2024, a M 7.5 earthquake struck Japan's Noto peninsula. A team of scientists combined field work and a comparison of digital elevation models to find evidence of deep-seated gravitational slope deformation. ⚒️https://buff.ly/sW4CdPt
March 31, 2025 at 11:06 PM
🌟OPEN ACCESS🌟In 2024, a M 7.5 earthquake struck Japan's Noto peninsula. A team of scientists combined field work and a comparison of digital elevation models to find evidence of deep-seated gravitational slope deformation. ⚒️https://buff.ly/sW4CdPt
Reposted by FEO福岡地震観測
Update: Preliminary coseismic displacements of 2025 Myanmar earthquake from @CopernicusEU @ESA #Sentinel2 images by using #CosiCorr, processed by @NTU_TW GEOG
#Copernicus
1. Rupture propagated from N to S
2. Max. offset >4m
3. Rupture length ~500km
#Copernicus
1. Rupture propagated from N to S
2. Max. offset >4m
3. Rupture length ~500km
April 1, 2025 at 12:56 PM
Update: Preliminary coseismic displacements of 2025 Myanmar earthquake from @CopernicusEU @ESA #Sentinel2 images by using #CosiCorr, processed by @NTU_TW GEOG
#Copernicus
1. Rupture propagated from N to S
2. Max. offset >4m
3. Rupture length ~500km
#Copernicus
1. Rupture propagated from N to S
2. Max. offset >4m
3. Rupture length ~500km