Jay Patton online

Two weeks ago there was a magnitude M 7.7 earthquake in southern/central Panamá, along the Azuero Peninsula. The earthquake was shallow and within the crust of the Panama microplate. https://earthquake.usgs.gov/earthquakes/eventpage/us6000u18k/executive The earthquake mechanism is strike-slip (the beach ball shaped graphic…

I am slowly catching up with the Earthquake Reports! I have been ill on and off and I had lots of field work this summer conducting a paleoseismic investigation for a thrust fault I discovered in 2018. On 28 July…

I have been quite busy doing some fault trenching in northern California (in the region of the Mendocino triple junction) and have been at a few workshops and meetings. SO, I have been trying to catch up on these Earthquake…

I have been busy working on a paleoseismic investigation of the newly identified Shively fault in northern California (in the Mendocino triple junction region). Here is a summary of this paleoseismic investigation. During this work, there have been several large…

A couple weeks ago there was a sequence of earthquakes offshore of the east coast of Japan. https://earthquake.usgs.gov/earthquakes/eventpage/us6000sri7/executive This 4/20 magnitude M 7.4 earthquake occurred in the aftershock region from the 2011 Great East Japan M 9.0 earthquake. The 7.4…

I am catching up with Earthquake Reports after several bouts of illness. A couple weeks ago, there was a magnitude M 7.6 earthquake in the Molucca Strait (now a M 7.4). https://earthquake.usgs.gov/earthquakes/eventpage/us6000slss/executive This region is a complicated tectonic area. The…

In 1976 there was a devastating earthquake in Guatemala with a magnitude of M 7.5. https://earthquake.usgs.gov/earthquakes/eventpage/usp0000ex3/executive The 2026 PATA Days (Paleoseismology, Active Tectonics, and Archeoseismology) is being held in Guatemala this year. Fifty years since the earthquake. Geologists will likely…

Yesterday morning there was a M 6.5 earthquake near the coast southeast of Acapulco, Mexico. https://earthquake.usgs.gov/earthquakes/eventpage/us7000rm3k/executive Based on the earthquake mechanism and the location, I interpret this to probably be a megathrust subduction zone interface earthquake (the subduction zone fault…

Here I present a poster for the M 6.2 earthquake in the Marmara Sea, northwest of Turkey. https://earthquake.usgs.gov/earthquakes/eventpage/us7000pufs/executive This earthquake slipped along the North Anatolia fault (NAF), a right-lateral strike-slip fault that trends along the northern part of Turkey. Most…

Here I present a poster for the M 7.4 Kamchatka, Russia Earthquake. https://earthquake.usgs.gov/earthquakes/eventpage/us7000qdyl/executive This earthquake slipped along the megathrust subduction zone in the region that slipped during a M 8.8-9.0 earthquake in 1952. I don’t always have the time to…