Category Archives: Extension

2018/07/29
11:39 AM
by: Jay Patton

Earthquake Report: Blanco fracture zone

Well, so exciting to have more earthquakes to write about! This summer has been a low seismic summer. The entire year actually. There was an earthquake within the Gorda plate a few days ago, but these M 5.3 and M … Continue reading →

Posted in cascadia, earthquake, education, Extension, geology, pacific, plate tectonics, strike-slip

2018/07/24
9:42 AM
by: Jay Patton

#Earthquake Report: Gorda plate

Over the past night and morning, there was a sequence of earthquakes within the Gorda plate due west of Crescent City. Some people even felt these earthquakes, culminating (so far) with a M 5.6. There was a Gorda plate earthquake … Continue reading →

Posted in cascadia, earthquake, education, Extension, geology, gorda, pacific, plate tectonics

2018/03/08
3:46 PM
by: Jay Patton

Earthquake Report: Malawi & Mozambique

Busy day today. This is my second earthquake report today. This report is about a M 5.6 earthquake along the Malawi Rift (MR) system, part of the larger East Africa Rift (EAR) extensional plate boundary. The EAR is currently the … Continue reading →

Posted in africa, earthquake, education, Extension, geology, plate tectonics

2017/11/19
11:36 PM
by: Jay Patton

Earthquake Report: Loyalty Islands Update #1

I just got back from one of the best conferences that I have ever attended, PATA Days 2017 (Paleoseismology, Active Tectonics, and Archeoseismology). This conference was held in Blenheim, New Zealand and was planned to commemorate the 300 year anniversary … Continue reading →

Posted in earthquake, education, Extension, geology, pacific, plate tectonics, subduction, tsunami

2017/11/01
9:24 PM
by: Jay Patton

#Earthquake Report: Loyalty Islands

BOO! Happy Halloween/Samhain…. I am on the road and worked on this report while on layovers with intermittent internets access… Though this earthquake sequence spanned a day or so, so it is good that it took me a while to … Continue reading →

Posted in earthquake, Extension, geology, pacific, plate tectonics

2017/09/23
11:35 AM
by: Jay Patton

Earthquake Report: Chiapas Earthquake Update #2

Well, we had a really interesting earthquake today. There was a M 6.1 earthquake in the North America plate (NAP) to the north of the sequence offshore of Chiapas, with the M 8.1 mainshock. Here is the USGS website for … Continue reading →

Posted in earthquake, education, Extension, geology, mexico, pacific, plate tectonics

2017/09/20
10:44 PM
by: Jay Patton

Earthquake Report: Puebla, Mexico Update #1

Well, the responses of people who are in the midst of a deadly disaster have been inspiring, bringing tears to my eyes often. Watching people searching and helping find survivors. This deadly earthquake brings pause to all who are paying … Continue reading →

Posted in earthquake, education, Extension, geology, mexico, plate tectonics, subduction

2017/09/02
9:22 PM
by: Jay Patton

Earthquake Report: Bear Lake fault, Idaho

We are still having a series of earthquakes in southeastern Idaho. This earthquake appears related to the Bear Valley fault (BVF) system, which is a normal fault system related to extension in the Basin and Range geomorphic province. Here is … Continue reading →

Posted in earthquake, education, Extension, geology, plate tectonics

2017/07/20
6:16 PM
by: Jay Patton

Earthquake Report: Turkey

We just had a good shaker in western Turkey. At the moment, there are over 400 reports of ground shaking to the USGS “Did you Feel It?” web page. The USGS PAGER report estimates that there may be some casualties … Continue reading →

Posted in collision, earthquake, education, europe, Extension, geology, plate tectonics, strike-slip, Transform

2017/06/12
12:57 PM
by: Jay Patton

Earthquake Report: Turkey!

We had a couple of earthquakes in western Turkey today (in the Aegean Sea offshore of the Island of Lesbos, part of Greece). The M 6.3 earthquake shows evidence for extension (normal fault), based on the moment tensor (read below). … Continue reading →

Posted in earthquake, europe, Extension, geology, plate tectonics