Category Archives: strike-slip

Earthquake Report: New Ireland

This region of Earth is one of the most seismically active in the past decade plus. This morning, as I was preparing for work, I got an email notifying me of an earthquake with a magnitude M = 7.5 located … Continue reading

Posted in earthquake, Extension, geology, landslides, pacific, plate tectonics, strike-slip, subduction, Transform, tsunami

Earthquake Report: Panamá

There was just now an earthquake beneath Panamá. The major plate boundary in the region is a subduction zone (convergent plate boudary) where the Cocos and Nazca plates dive northwards beneath the Caribbean plate forming the Middle America trench (MAT). … Continue reading

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

Earthquake Report: Sulawesi, Indonesia

Today I awoke to the USGS earthquake notification service email about an earthquake offshore of Sulawesi, Indonesia. There was an earthquake with a magnitude M 6.8 to the southeast of the Donggala/Palu earthquake from 28 September 2018. Here is the … Continue reading

Posted in earthquake, education, geology, Indonesia, plate tectonics, strike-slip

18 April 1906 San Francisco Earthquake

Today is the anniversary of the 18 April 1906 San Francisco Earthquake. There are few direct observations (e.g. from seismometers or other instruments) from this earthquake, so our knowledge of how strong the ground shook during the earthquake are limited … Continue reading

Posted in earthquake, education, geology, los angeles, pacific, plate tectonics, San Andreas, strike-slip, Transform

Earthquake Report: central Aleutians

A couple days ago, in my inbox, there was an email from the Pacific Tsunami Warning Center about an earthquake along the Aleutian Islands, near Rat Island, Alaska. However, this earthquake was not along the megathrust subduction zone fault there … Continue reading

Posted in alaska, earthquake, pacific, plate tectonics, strike-slip, subduction

Earthquake Report: Bering Kresla / Pacific plate

We just had a large earthquake in the region of the Bering Kresla fracture zone, a strike-slip fault system that coincides with the westernmost portion of the Aleutian trench (which is a subduction zone further to the east). At first, … Continue reading

Posted in alaska, asia, earthquake, education, Extension, geology, pacific, plate tectonics, strike-slip, subduction, Transform, tsunami

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: Mid Atlantic Ridge

There was a M = 6.8 earthquake along a transform fault connecting segments of the Mid Atlantic Ridge recently. The Mid Atlantic Ridge is an extensional plate boundary called an oceanic spreading ridge. Oceanic crust is formed along these types … Continue reading

Posted in atlantic, College Redwoods, earthquake, education, geology, plate tectonics, strike-slip, Transform

Earthquake Report: Greece

Well, I was about to head to town and noticed a magnitude M = 5.0 earthquake in Greece. I thought to myself, I wonder if that is a foreshock. It was. Then, the M 6.8 mainshock hit while i was … Continue reading

Posted in College Redwoods, earthquake, education, geology, mediterranean, strike-slip, subduction

Earthquake Report: Explorer plate

Last night I had completed preparing for class the next day. I was about to head to bed. I got an email from the Pacific Tsunami Warning Center notifying me that there was no risk of a tsunami due to … Continue reading

Posted in cascadia, College Redwoods, earthquake, education, geology, pacific, plate tectonics, strike-slip, Transform