4.8

M4.8 Earthquake near northern East Pacific Rise — December 23, 2020

2020-12-23 00:53:28 UTC (2020-12-23) · approx. 5:53 PM UTC-7 local

MagnitudeM4.8(mb)
Time00:53 UTC≈ 5:53 PM UTC-7
Depth10.0 kmshallow crustal
Coordinates8.260°, -103.038°
Felt byNo felt reports
Status✓ Reviewed by USGS

On December 23, 2020 at 00:53 UTC, a magnitude 4.8 shallow crustal earthquake struck near northern East Pacific Rise, at a depth of 10.0 km and coordinates 8.2599°, -103.0377°.

Physical scale: An earthquake of magnitude 4.8 releases seismic energy equivalent to roughly 239 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.2 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 8.26°, -103.04°

Earthquake Details

Magnitude
4.8 mb
Depth
10.0 km
shallow crustal
Location
8.2599°N
-103.0377°E

Technical Information

Event ID
us6000d5rn
Event Type
earthquake
Status
✓ Reviewed
Significance
354
Azimuthal Gap
103.0°
Min Station Distance
10.220°
RMS Residual
0.75 sec
Last Updated
2021-03-06 23:17:48 UTC

Common Questions

How strong was the magnitude 4.8 earthquake near northern East Pacific Rise?

The magnitude 4.8 earthquake that struck near northern East Pacific Rise on December 23, 2020 at 00:53 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 8.2599°, -103.0377°, which is near northern East Pacific Rise.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.8 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000d5rn). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, December 23, 2020). M4.8 Earthquake near northern East Pacific Rise — December 23, 2020. Retrieved March 6, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000d5rn/