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Using information from inside the rocks on Earthâs surface, my colleagues and I have reconstructed the plate tectonics of the planet over the last 1.8 billion years.
It is the first time Earthâs geological record has been used like this, looking so far back in time. This has enabled us to make an attempt at mapping the planet over the last 40 percent of its history, which you can see in the animation below.
The work, led by Xianzhi Cao from the Ocean University in China, was recently published in the open-access journal Geoscience Frontiers.
would be kind of nice if they began at the start and worked forwards..
Using information from inside the rocks on Earthâs surface, my colleagues and I have reconstructed the plate tectonics of the planet over the last 1.8 billion years.
It is the first time Earthâs geological record has been used like this, looking so far back in time. This has enabled us to make an attempt at mapping the planet over the last 40 percent of its history, which you can see in the animation below.
The work, led by Xianzhi Cao from the Ocean University in China, was recently published in the open-access journal Geoscience Frontiers.
A magnitude-3.8 earthquake struck
at 9:08 a.m. about 8 miles northeast of Borrego Springs and 20.9 miles
south of La Quinta, according to the U.S. Geological Survey.
A small rattle was felt in the Coachella Valley, including in Indio on Day 2 of the Coachella Valley Music and Arts festival.
Location: Really deep in the heart of South California Gender:
Posted:
Apr 14, 2024 - 8:51am
An article in today's newspaper...
A magnitude-3.8 earthquake struck
at 9:08 a.m. about 8 miles northeast of Borrego Springs and 20.9 miles
south of La Quinta, according to the U.S. Geological Survey.
A small rattle was felt in the Coachella Valley, including in Indio on Day 2 of the Coachella Valley Music and Arts festival.
Now, with this ~ M4 aftershock the aftershock forecast has changed over the next week. You now have a 16% chance of an M4 ( but less than 1-2 % chance of an M5) and a 76% chance of an M3-3.9. So, youâll likely feel another shake but they SHOULD all be lower than the M4.8 main shock.
Thereâs a lot of science regarding aftershocks, they decay almost exponentially in most earthquakes, so, for this size earthquake they should be done within a week. Larger earthquakes have longer aftershock periods. M7+ earthquakes can have aftershocks for months. Iâve been in some large earthquakes and have been studying some very large ones right after they occur. The aftershocks for those can be large, M5 -6. Those make me jumpy.
So we could have earthquake aftershocks during a solar eclipse. Awesome. Are there any signs of tsunami activity?
Now, with this ~ M4 aftershock the aftershock forecast has changed over the next week. You now have a 16% chance of an M4 ( but less than 1-2 % chance of an M5) and a 76% chance of an M3-3.9. So, youâll likely feel another shake but they SHOULD all be lower than the M4.8 main shock.
Thereâs a lot of science regarding aftershocks, they decay almost exponentially in most earthquakes, so, for this size earthquake they should be done within a week. Larger earthquakes have longer aftershock periods. M7+ earthquakes can have aftershocks for months. Iâve been in some large earthquakes and have been studying some very large ones right after they occur. The aftershocks for those can be large, M5 -6. Those make me jumpy.
no alerts. just the low rumbles like a big truck was going by.
they're reporting this the biggest quake on record in Philly area. although the one in 2011 (centered in Virginia) shook us a lot more. I saw the frickin' wall and floor waving.
I was at work when that one hit. In a mobile trailer type thingy, and was standing in the hall outside my office talking to a co-worker when I notice my snake plant swaying. I said: "I think that was an earthquake." He hadn't even noticed. When I got home (closer to the epicenter than work), Middy (remember Middy?) was beside herself. As if to say: "I didn't do it, Mom!" Nothing off the walls, but all the pictures were askew and some things were knocked over.
Iâm always a little leery that someoneâs posting a video from another earthquake but the accents give me confidence this is NJ. Note the little dog reacts to the bang and jolt. Thatâs the p-wave. Then the big shaking comes in, thatâs the shear wave (s-wave). There are other waves that follow. The second part of the video, shot down the hall is great as well, can really see the pop of the p-wave. Also, the duration of the earthquake, I count about 5-6 seconds is what we expect from that size event. https://x.com/rawsalerts/statu...
lol they just showed that video on the news.
we're about 60 miles from the center. wasn't that shook. felt more like the floor vibrating.
there was a 2.2 in the same area last week. pre-shock they are saying
