An earthquake of magnitude 8.0 or larger will almost always cause strong shaking, but a new study suggests that smaller earthquakes—those around magnitude 5.5 or so—are the cause of most occurrences of strong shaking ...
Earth Sciences
Nov 04, 2020
0
44
Measures of Earth's vibrations zigged and zagged across Mostafa Mousavi's screen one morning in Memphis, Tenn. As part of his Ph.D. studies in geophysics, he sat scanning earthquake signals recorded the night before, verifying ...
Earth Sciences
Oct 22, 2020
0
42
By comparing two magnitude measurements for seismic events recorded locally, researchers can tell whether the event was a small earthquake or a single-fire buried chemical explosion.
Earth Sciences
Oct 13, 2020
0
6
Small earthquakes and a so-called "inflation" of the mountain, signalling a potential volcanic eruption, have been reported near Iceland's famous "Blue Lagoon," local authorities said Monday.
Earth Sciences
Jan 27, 2020
0
1062
The series of 34 small earthquakes between April 2018 and May 2019 occurred within 10 km of two active oil extraction sites at Brockham and Horse Hill in Surrey.
Earth Sciences
Aug 27, 2019
0
47
On Aug. 17, 1959, back when Dwight D. Eisenhower was president, the U.S. had yet to send a human to space and the nation's flag sported 49 stars, Yellowstone National Park shook violently for about 30 seconds. The shock was ...
Earth Sciences
May 23, 2019
1
933
Small earthquakes in Ohio, Pennsylvania, West Virginia, Oklahoma and Texas can be linked to hydraulic fracturing wells in those regions, according to researchers speaking at the SSA 2019 Annual Meeting.
Earth Sciences
Apr 26, 2019
1
65
A spring surge of meltwater, seeping through vertically tilted layers of rock, caused a seismic swarm near California's Long Valley Caldera in 2017, according to research presented at the 2019 SSA Annual Meeting.
Earth Sciences
Apr 25, 2019
0
14
A small earthquake gave some Southern California residents a predawn wakeup call.
Environment
Apr 03, 2019
0
31
A small earthquake in North Korea was likely caused by a mining operation, Seoul's weather agency said Friday.
Environment
Mar 08, 2019
0
6
