4.5

M4.5 Earthquake near northern Mid-Atlantic Ridge — June 4, 2020

2020-06-04 15:54:00 UTC (2020-06-04) · approx. 12:54 PM UTC-3 local

MagnitudeM4.5(mb)
Time15:54 UTC≈ 12:54 PM UTC-3
Depth10.0 kmshallow crustal
Coordinates30.984°, -41.350°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 4, 2020 at 15:54 UTC, a magnitude 4.5 shallow crustal earthquake struck near northern Mid-Atlantic Ridge, at a depth of 10.0 km and coordinates 30.9840°, -41.3496°.

Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 30.98°, -41.35°

Earthquake Details

Magnitude
4.5 mb
Depth
10.0 km
shallow crustal
Location
30.9840°N
-41.3496°E

Technical Information

Event ID
us6000a9w4
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Azimuthal Gap
107.0°
Min Station Distance
14.706°
RMS Residual
1.15 sec
Last Updated
2020-08-18 17:58:50 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near northern Mid-Atlantic Ridge?

The magnitude 4.5 earthquake that struck near northern Mid-Atlantic Ridge on June 4, 2020 at 15:54 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 30.9840°, -41.3496°, which is near northern Mid-Atlantic Ridge.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000a9w4). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, June 4, 2020). M4.5 Earthquake near northern Mid-Atlantic Ridge — June 4, 2020. Retrieved August 18, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000a9w4/