4.8

M4.8 Earthquake in the Owen Fracture Zone regionOctober 21, 2022

2022-10-21 20:19:07 UTC (2022-10-21) · approx. 12:19 AM UTC+4 local

Felt by 1 person across nearby locations.

MagnitudeM4.8(mb)
Time20:19 UTC12:19 AM UTC+4
Depth10.0 kmshallow crustal
Coordinates11.911°, 57.969°
Felt by1DYFI response
Status✓ Reviewed by USGS

On October 21, 2022 at 20:19 UTC, a magnitude 4.8 shallow crustal earthquake struck in the Owen Fracture Zone region, at a depth of 10.0 km and coordinates 11.9114°, 57.9686°. This earthquake was detected by 100 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 355, placing it among routine seismic activity.

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 11.91°, 57.97°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.

USGS DYFI community-reported intensity map for the M4.8 earthquake near Owen Fracture Zone region

Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report

Earthquake Details

Magnitude
4.8 mb
Depth
10.0 km
shallow crustal
Location
11.9114°N
57.9686°E
Felt Reports
1
DYFI responses
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
us6000ivm2
Event Type
earthquake
Status
✓ Reviewed
Significance
355
Stations Used
100
Azimuthal Gap
46.0°
Min Station Distance
13.072°
RMS Residual
0.92 sec
Last Updated
2022-12-31 23:03:48 UTC

Common Questions

How strong was the magnitude 4.8 earthquake in the Owen Fracture Zone region?

The magnitude 4.8 earthquake that struck in the Owen Fracture Zone region on October 21, 2022 at 20:19 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 11.9114°, 57.9686°, which is in the Owen Fracture Zone region.

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: us6000ivm2). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, October 21, 2022). M4.8 Earthquake in the Owen Fracture Zone regionOctober 21, 2022. Retrieved December 31, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000ivm2/