Dr. Amilcar Carrera-Cevallos
@acarrerac.bsky.social
2.2K followers 270 following 270 posts
Ecuador 🇪🇨🏳️‍🌈 Civil Engineer; MsC. Earthquake Engineering; PhD Earthquake Engineering. Earthquake Scientists.
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acarrerac.bsky.social
The Mindanao region, where Davao City is located, lies within the Philippine arc, at the convergent boundary between the Philippine and Sunda (Eurasian) plates.
acarrerac.bsky.social
M7.4 just struck the coast of the #Philippines at a depth of 58.1km according to the USGS.
The #earthquake shown occurred on the western margin of the Philippine Trench, where the Philippine oceanic plate begins its subduction beneath the Mindanao microplate.
The information box highlights the main event.
Reposted by Dr. Amilcar Carrera-Cevallos
judithgeology.bsky.social
I'm running for something!

The world is a complicated and increasingly scary place. Decisions made at the local level will have real impacts. That's why I'm running for a seat on the Tompkins County Legislature.

If you can afford to pitch in, I'd really appreciate your support.
Donate to Judith Hubbard
Show your support with a contribution.
secure.actblue.com
Reposted by Dr. Amilcar Carrera-Cevallos
acarrerac.bsky.social
Hello!!!

Does anyone have the same issue as me to try to download data from the GCMT?
It’s showing Proxy Error on the website. 😭😭😭😭
acarrerac.bsky.social
Hello!!!

Does anyone have the same issue as me to try to download data from the GCMT?
It’s showing Proxy Error on the website. 😭😭😭😭
Reposted by Dr. Amilcar Carrera-Cevallos
acarrerac.bsky.social
Y’all folks!
Does anybody know what’s happening with GCMT???
Shows Proxy Error.

OMG!!
Reposted by Dr. Amilcar Carrera-Cevallos
seismosocam.bsky.social
Meet SynDepth, the NEIC’s high-frequency teleseismic waveform modeling approach for determining source depth. #SRL ⚒️

pubs.geoscienceworld.org/ssa/srl/arti...
acarrerac.bsky.social
Y’all folks!
Does anybody know what’s happening with GCMT???
Shows Proxy Error.

OMG!!
Reposted by Dr. Amilcar Carrera-Cevallos
judithgeology.bsky.social
A M5.0 earthquake struck below the Sea of Marmara (Türkiye) yesterday, a little west of April's M6.2. Was this an aftershock? What does it mean for hazard? We have added a map and short discussion to our previous post, and removed the paywall. ⚒️ 🧪

earthquakeinsights.substack.com/p/m62-earthq...
Seismicity below the Sea of Marmara since January 1, 2025, colored by time, with a timeline.
Reposted by Dr. Amilcar Carrera-Cevallos
judithgeology.bsky.social
⚒️ 🧪

A M6.9 earthquake struck Cebu island in the Philippines today, causing at least 20 deaths.

The rupture seems to have occurred on an unmapped fault, started below the ocean and continuing to the southwest, passing near populated areas of Cebu.

Read more:
Deadly M6.9 earthquake strikes central Philippines
An unexpected event on an apparently unmapped fault
earthquakeinsights.substack.com
Reposted by Dr. Amilcar Carrera-Cevallos
acarrerac.bsky.social
An hour ago, a M6.9 struck the #Philippines at a depth of 10 km. This earthquake appears to be associated with the Philippine fault system. The USGS categorized it as very strong. So far, I have no information on casualties.
#earthquake #terremoto
Reposted by Dr. Amilcar Carrera-Cevallos
earthjay.bsky.social
#PaperReport for Goldfinger et al., 2025
doi.org/10.1130/GES0...

stratigraphy is the key to disentangling prehistoric earthquake records for the Cascadia and San Andreas fault systems

evidence suggests that in the past 3ka, Cascadia precedes San Andreas, often over short time
acarrerac.bsky.social
An hour ago, a M6.9 struck the #Philippines at a depth of 10 km. This earthquake appears to be associated with the Philippine fault system. The USGS categorized it as very strong. So far, I have no information on casualties.
#earthquake #terremoto
acarrerac.bsky.social
PRELIMINARY!!!
geofon.bsky.social
Magnitude : 6.8
Region: *Leyte, Philippines*
Time: 2025-09-30 13:59:45 UTC
Epicenter : 124.13°E 11.12°N
Depth: 15 km
*First posted at: 14:06 UTC*

https://geofon.gfz-potsdam.de/eqexplorer/events/gfz2025tean/general

##GEOFON ##GFZ ##earthquake ##magnitude
Map showing the earthquake of 2025-09-30 in Leyte, Philippines
Reposted by Dr. Amilcar Carrera-Cevallos
judithgeology.bsky.social
Northwestern Venezuela was struck by several large earthquakes today and yesterday (M6.2, 5.8, 6.3). Why did these shallow thrust events occur in an area where previously only strike-slip earthquakes have been documented? We speculate about the geology in our latest post.

⚒️ 🧪
Several large earthquakes strike northwestern Venezuela
Surprising thrust events within a complex tectonic setting
earthquakeinsights.substack.com
Reposted by Dr. Amilcar Carrera-Cevallos
earthjay.bsky.social
#EarthquakeReport for M6.2 #Sismo #Terremoto #Earthquake en #Venezuela

Thrust (Compressional) earthquake mechanism
Shallow
Hopefully not many casualties

Tectonic background in 2018 report
earthjay.com?p=7657

earthquake.usgs.gov/earthquakes/...
Reposted by Dr. Amilcar Carrera-Cevallos
earthjay.bsky.social
#EarthquakeReport for M6.2 #Sismo #Terremoto #Earthquake en #Venezuela

Shallow
@USGS_Quakes models show chances for landslides and liquefaction
PAGER estimate for human and economic impact

Tectonic background in 2018 report
earthjay.com?p=7657

earthquake.usgs.gov/earthquakes/...
Reposted by Dr. Amilcar Carrera-Cevallos
judithgeology.bsky.social
⚒️ 🧪 Were you one of the tens of thousands in the Bay Area woken up by the M4.3 earthquake last night? The earthquake occurred on the Hayward Fault, which runs along the east side of the valley.

Learn more about what we know, and don't know, about the Hayward Fault and its seismic hazard:
M4.3 earthquake rattles Berkeley, CA
A reminder of the hazard of the Hayward Fault
earthquakeinsights.substack.com
Reposted by Dr. Amilcar Carrera-Cevallos
judithgeology.bsky.social
⚒️ 🧪 Another big addition to the remarkable M8.8 earthquake sequence offshore Kamchatka: a M7.8 - the biggest aftershock so far.

With foreshocks, aftershocks, aftershocks of foreshocks, and foreshocks of aftershocks, it's hard to keep these earthquakes straight! Read more about what's going on:
M 7.8 strikes offshore Kamchatka
Another big addition to a remarkable earthquake sequence
earthquakeinsights.substack.com
acarrerac.bsky.social
A new M7.8 struck again in Kamchatka minutes ago, near the M8.8. A few days ago, another earthquake struck this area. It appears to be an aftershock of the M8.8 earthquake. The tsunami advisory is in effect: tsunami.gov
#earthquake #Kamchatka #terremoto
Reposted by Dr. Amilcar Carrera-Cevallos
judithgeology.bsky.social
⚒️ 🧪

A M7.4 earthquake struck Russia's Kamchatka peninsula today: the largest aftershock so far of the great M8.8 on July 29th.

What do we see in the seismic data so far? And what are the chances of a triggered earthquake next door?

earthquakeinsights.substack.com/p/m74-earthq...
M7.4 earthquake shakes Kamchatka: largest aftershock of the M8.8 earthquake
How does it fit into the seismic sequence?
earthquakeinsights.substack.com
acarrerac.bsky.social
M7.4 struck an hour ago, Kamchatsky at 39.5km of depth: this is another large earthquake.
A month ago, a M8.8 struck this area.
#earthquake #Kamchatka #Russia #terremoto
Reposted by Dr. Amilcar Carrera-Cevallos
seislologist.bsky.social
Another large earthquake just struck off Kamchatka, Russia. USGS reports magnitude 7.7. Energy waves now arriving in Australia.
Reposted by Dr. Amilcar Carrera-Cevallos
drwendyrocks.bsky.social
I’m in coastal CA right now, and here are the waves from the M7.4 earthquake detected on a nearby seismometer. The waves are too small to feel but not too small to be detected. www.iris.edu/app/station_...
Horizontal lines across the screen make time. About 1/5 of the way down the page the straight lines start to get wiggly. The onset of the wiggle is marked by a purple dot, showing the arrival of the seismic waves. Map of the Bay Area showing the location of the seismometer to the southeast of Santa Cruz.