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Based on its magnitude, the fault that was active during the quake ruptured along a surface of approx. 50 km
2 (=19 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 12 km (8 mi).
Aftershocks typically occur during the days and weeks following the quake at or near the same fault, at distances of up to approx. two times the length of the rupture zone.
The often broadly linear arrangement of aftershock epicenters encompasses the rupture zone of the main shock (check on the map below to verify).
Recorded aftershocks, latest first (3933 quakes):
01 Apr 2021 08:13 UTC | M 2.0 |
Small magnitude 3.0 quake hits 6 miles northeast of El Centro, California, United States in the morning
Wed, 24 Feb 2021, 17:15 17:15 PM | BY: EARTHQUAKEMONITOR
3.0 quake 24 Feb 8:55 am (GMT -8)
A shallow magnitude 3.0 earthquake was reported in the morning near El Centro, Imperial County, California, USA.
According to the United States Geological Survey, the quake hit on Wednesday 24 February 2021 at 8:55 am local time at a shallow depth of 7.8 miles. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.