5.0

M5.0 Earthquake near North Atlantic OceanOctober 16, 2021

2021-10-16 22:56:15 UTC (2021-10-16) · approx. 7:56 PM UTC-3 local

MagnitudeM5.0(mb)
Time22:56 UTC7:56 PM UTC-3
Depth10.0 kmshallow crustal
Coordinates15.494°, -49.987°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 16, 2021 at 22:56 UTC, a magnitude 5.0 shallow crustal earthquake struck near North Atlantic Ocean, at a depth of 10.0 km and coordinates 15.4943°, -49.9874°.

Physical scale: An earthquake of magnitude 5.0 releases seismic energy equivalent to roughly 477 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.7 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 15.49°, -49.99°

Earthquake Details

Magnitude
5.0 mb
Depth
10.0 km
shallow crustal
Location
15.4943°N
-49.9874°E

Technical Information

Event ID
us6000fvay
Event Type
earthquake
Status
✓ Reviewed
Significance
385
Azimuthal Gap
53.0°
Min Station Distance
9.566°
RMS Residual
0.51 sec
Last Updated
2021-12-25 22:58:39 UTC

Common Questions

How strong was the magnitude 5.0 earthquake near North Atlantic Ocean?

The magnitude 5.0 earthquake that struck near North Atlantic Ocean on October 16, 2021 at 22:56 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at 15.4943°, -49.9874°, which is near North Atlantic Ocean.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.0 earthquakes can continue for days to weeks and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000fvay). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, October 16, 2021). M5.0 Earthquake near North Atlantic OceanOctober 16, 2021. Retrieved December 25, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000fvay/