4.6

M4.6 Earthquake 28 km N of Adi Keyh, Eritrea — May 15, 2023

2023-05-15 19:05:12 UTC (2023-05-15) · approx. 10:05 PM UTC+3 local

Felt by 3 people across nearby locations.

MagnitudeM4.6(mb)
Time19:05 UTC≈ 10:05 PM UTC+3
Depth9.9 kmshallow crustal
Coordinates15.104°, 39.411°
Felt by3DYFI responses
Status✓ Reviewed by USGS

On May 15, 2023 at 19:05 UTC, a magnitude 4.6 shallow crustal earthquake struck 28 km N of Adi Keyh, Eritrea, at a depth of 9.9 km and coordinates 15.1044°, 39.4110°. This earthquake was detected by 88 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 327, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 15.10°, 39.41°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 3 citizen responses 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 M4.6 earthquake near 28 km N of Adi Keyh, Eritrea

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

Earthquake Details

Magnitude
4.6 mb
Depth
9.9 km
shallow crustal
Location
15.1044°N
39.4110°E
Felt Reports
3
DYFI responses
Community Intensity
3.8
CDI from reports

Technical Information

Event ID
us6000kc4a
Event Type
earthquake
Status
✓ Reviewed
Significance
327
Stations Used
88
Azimuthal Gap
54.0°
Min Station Distance
4.878°
RMS Residual
0.69 sec
Last Updated
2023-08-02 07:57:00 UTC

Common Questions

How strong was the magnitude 4.6 earthquake near Adi Keyh, Eritrea?

The magnitude 4.6 earthquake that struck 28 km N of Adi Keyh, Eritrea on May 15, 2023 at 19:05 UTC had a depth of 9.9 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 15.1044°, 39.4110°, which is 28 km N of Adi Keyh, Eritrea.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.

Actions

View on USGSDid You Feel It?

Authoritative source: USGS event page (event ID: us6000kc4a). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, May 15, 2023). M4.6 Earthquake 28 km N of Adi Keyh, Eritrea — May 15, 2023. Retrieved August 2, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000kc4a/