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Category: subduction (page 16)

Chile Historic Tsunami Comparisons

Posted on: September 18, 2015 Last updated on: September 18, 2015 Written by: Jay Patton Comments: 5
Here are three tsunami wave amplitude models from NOAA for three Great (magnitude > 8.0) earthquakes in Chile. Here are the USGS websites for the three earthquakes that generated these earthquakes, plus the one from 2015.09.16 not shown on the…
Continue reading “Chile Historic Tsunami Comparisons”…

Chile M 8.3 Earthquake: Tsunami Observations!

Posted on: September 17, 2015 Last updated on: September 17, 2015 Written by: Jay Patton Comments: 6
Here are a couple of videos that document the arrival of tsunami waves in the “mouth of Genio river at Wafer Bay, Cocos Island, Costa Rica. Cocos Island is a National Park located between Galapagos Islands and the continental coast…
Continue reading “Chile M 8.3 Earthquake: Tsunami Observations!”…

2015.09.16 Chile Update #1

Posted on: September 16, 2015 Last updated on: September 16, 2015 Written by: Jay Patton Comments: 10
Here are some updates to this earthquake and tsunami. First, here is an updated map. I have included an illustration from Atwater et al. (2005) that shows the earthquake cycle at a subduction zone. A subduction zone is a convergent…
Continue reading “2015.09.16 Chile Update #1”…

Great Tsunamigenic Earthquake offshore Chile!

Posted on: September 16, 2015 Last updated on: September 16, 2015 Written by: Jay Patton Comments: 20
Well, I was in the middle of a Quaternary Stratigraphy lab when this hit, so it took a while to get home. My delay pales in comparison to the probably large…
Continue reading “Great Tsunamigenic Earthquake offshore Chile!”…

Earthquake in Papua New Guinea!

Posted on: September 12, 2015 Last updated on: September 12, 2015 Written by: Jay Patton Comments: 0
In the last ~24 hours, we have had a few earthquakes in northeastern Papua New Guinea, all in the M 5 range. Here are the USGS web sites for these earthquakes: 2015.09.11 M 5.5 2015.09.11 M 5.3 2015.09.12 M 5.0…
Continue reading “Earthquake in Papua New Guinea!”…

Kermadec trench earthquake!

Posted on: September 7, 2015 Last updated on: September 7, 2015 Written by: Jay Patton Comments: 1
Last night there were a few earthquakes along the Kermadec trench, which is a convergent plate boundary (subduction zone) where the Pacific plate subducts westward beneath the Australia plate. Here is the USGS website for this M 6.4 earthquake. Recent…
Continue reading “Kermadec trench earthquake!”…

Aleutian subduction zone earthquake near the Amlia fracture zone!

Posted on: September 5, 2015 Last updated on: September 5, 2015 Written by: Jay Patton Comments: 4
Last night, as I was ending my day, there was a swarm of seismicity near the Amlia fracture zone. This morning, there were more earthquakes. This swarm is west of a swarm in early August 2015 near Nikolski. Here is…
Continue reading “Aleutian subduction zone earthquake near the Amlia fracture zone!”…

Earthquake near the Santa Cruz Islands (western Pacific)!

Posted on: August 16, 2015 Last updated on: August 16, 2015 Written by: Jay Patton Comments: 2
Yesterday we had a large magnitude earthquake along a plate boundary that connects the South Solomon trench with the New Hebrides trench. This region had a swarm of earthquakes in May. Here is the USGS website for the M 6.6…
Continue reading “Earthquake near the Santa Cruz Islands (western Pacific)!”…

Solomon Islands Earthquake!

Posted on: August 10, 2015 Last updated on: August 10, 2015 Written by: Jay Patton Comments: 1
Today we had another earthquake in this tectonically active region of the world. Initially posted as a magnitude 7.0, the USGS considers this a M = 6.6 earthquake. Here is a map showing the epicenter as an orange circle. I…
Continue reading “Solomon Islands Earthquake!”…

New Guinea Earthquake!

Posted on: July 27, 2015 Last updated on: July 27, 2015 Written by: Jay Patton Comments: 4
Moments ago we had a large magnitude earthquake (M = 7.0) on land in northeastern New Guinea, Indonesia. Here is the USGS website for this earthquake. Here is a preliminary map that shows estimates of ground shaking intensity based upon…
Continue reading “New Guinea Earthquake!”…
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