-
Archives
- September 2020
- June 2020
- May 2020
- April 2020
- March 2020
- January 2020
- November 2019
- October 2019
- September 2019
- August 2019
- July 2019
- June 2019
- May 2019
- April 2019
- March 2019
- February 2019
- January 2019
- December 2018
- November 2018
- October 2018
- September 2018
- August 2018
- July 2018
- May 2018
- April 2018
- March 2018
- February 2018
- January 2018
- December 2017
- November 2017
- September 2017
- August 2017
- July 2017
- June 2017
- May 2017
- April 2017
- March 2017
- February 2017
- January 2017
- December 2016
- November 2016
- October 2016
- September 2016
- August 2016
- July 2016
- June 2016
- April 2016
- March 2016
- February 2016
- January 2016
- December 2015
- November 2015
- October 2015
- September 2015
- August 2015
- July 2015
- June 2015
- May 2015
- April 2015
- March 2015
- February 2015
- January 2015
- December 2014
- November 2014
- October 2014
- September 2014
- August 2014
- June 2014
- May 2014
- April 2014
- March 2014
- February 2014
- December 2013
- November 2013
- October 2013
- September 2013
- August 2013
- July 2013
- May 2013
- April 2013
- February 2013
- January 2013
- December 2012
- October 2012
- September 2012
- August 2012
- May 2012
- April 2012
- March 2012
- April 1970
-
Meta
Category Archives: collision
Earthquake Report: Southern California
Late last night there was a sequence of earthquakes in southern California. The mainshock is a M 4.5 earthquake. https://earthquake.usgs.gov/earthquakes/eventpage/ci38695658/executive This temblor was widely felt across the southland (including by my mom, who was warned by earthquake early warning). This … Continue reading
Posted in collision, earthquake, education, geology, los angeles, plate tectonics, San Andreas
Earthquake Report: Halmahera, Indonesia
Well, yesterday I was preparing some updates to the Ridgecrest Earthquake following my field work with my colleagues at the California Geological Survey (where I work) and the U.S. Geological Survey. We spent the week documenting surface ruptures associated with … Continue reading
Posted in collision, earthquake, education, geology, Indonesia, plate tectonics, tsunami
Earthquake Report: Papua New Guinea
Earlier today, there was an intermediate depth beneath eastern Papua New Guinea (PNG). With a magnitude M = 7.2, this is one of the largest earthquake so far in 2019. Here is the USGS website for this earthquake. Today’s earthquake … Continue reading
Posted in collision, earthquake, education, geology, pacific, plate tectonics, subduction
Earthquake Report: 2018 Summary
Here I summarize Earth’s significant seismicity for 2018. I limit this summary to earthquakes with magnitude greater than or equal to M 6.5. I am sure that there is a possibility that your favorite earthquake is not included in this … Continue reading
Posted in africa, alaska, arctic, asia, atlantic, caribbean, cascadia, collision, earthquake, education, geology, Indonesia, landslides, mediterranean, mexico, pacific, plate tectonics, subduction, Transform, tsunami, volcanoes
Earthquake Report: Iran
This morning (my time) there was a possibly shallow earthquake in western Iran with a magnitude of M = 6.3. This earthquake occurred in the aftershock zone of the 2017.11.12 M 7.3 earthquake. Here is my report for the M … Continue reading
Posted in asia, College Redwoods, collision, earthquake, education, europe, geology, plate tectonics, strike-slip
Earthquake Report: Hokkaido, Japan
Following the largest typhoon to strike Japan in a very long time, there was an earthquake on the island of Hokkaido, Japan today. There is lots on social media, including some spectacular views of disastrous and deadly landslides triggered by … Continue reading
Posted in asia, College Redwoods, collision, earthquake, education, geology, pacific, plate tectonics, subduction
Earthquake Report: Lombok, Indonesia: Update #1
Yesterday morning, as I was recovering from working on stage crew for the 34th Reggae on the River (fundraiser for the non profit, the Mateel Community Center), I noticed on social media that there was an M 6.9 earthquake in … Continue reading
Posted in College Redwoods, collision, earthquake, education, geology, Indonesia, pacific, plate tectonics, subduction
Earthquake Report: Lombok, Indonesia
Earlier today there was a shallow M 6.4 earthquake with an epicenter on the island of Lombok, Indonesia. With a hypocentral depth of about 7.5 km, this size of an earthquake can be quite damaging. The USGS PAGER estimate of … Continue reading
Posted in australia, collision, earthquake, education, geology, Indian Ocean, Indonesia, pacific, plate tectonics, subduction
Earthquake Report: Channel Islands Update #1
Well well. There was lots of interest in this M 5.3 earthquake offshore of Ventura/Los Angeles, justifiably so. Southern California is earthquake country. Here is an update. There was lots of information that I was trying to incorporate and I … Continue reading
Posted in collision, earthquake, education, geology, los angeles, pacific, plate tectonics, San Andreas, strike-slip
Earthquake Report: Papua New Guinea: Update #1
The aftershocks are still coming in! We can use these aftershocks to define where the fault may have slipped during this M 7.5 earthquake. As I mentioned yesterday in the original report, it turns out the fault dimension matches pretty … Continue reading
Posted in collision, earthquake, education, geology, pacific, plate tectonics