4.8

M4.8 Earthquake 11 km S of Bilisht, Albania — May 11, 2021

2021-05-11 21:31:01 UTC (2021-05-11) · approx. 10:31 PM UTC+1 local

Felt by 8 people across nearby locations.

MagnitudeM4.8(mww)
Time21:31 UTC≈ 10:31 PM UTC+1
Depth10.0 kmshallow crustal
Coordinates40.528°, 20.985°
Felt by8DYFI responses
Status✓ Reviewed by USGS

On May 11, 2021 at 21:31 UTC, a magnitude 4.8 shallow crustal earthquake struck 11 km S of Bilisht, Albania, at a depth of 10.0 km and coordinates 40.5284°, 20.9853°.

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 40.53°, 20.99°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 8 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 M4.8 earthquake near 11 km S of Bilisht, Albania

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

Earthquake Details

Magnitude
4.8 mww
Depth
10.0 km
shallow crustal
Location
40.5284°N
20.9853°E
Felt Reports
8
DYFI responses
Community Intensity
4.9
CDI from reports

Technical Information

Event ID
us7000e277
Event Type
earthquake
Status
✓ Reviewed
Significance
358
Azimuthal Gap
23.0°
Min Station Distance
0.994°
RMS Residual
0.97 sec
Last Updated
2021-12-07 15:33:16 UTC

Common Questions

How strong was the magnitude 4.8 earthquake near Bilisht, Albania?

The magnitude 4.8 earthquake that struck 11 km S of Bilisht, Albania on May 11, 2021 at 21:31 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 40.5284°, 20.9853°, which is 11 km S of Bilisht, Albania.

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: us7000e277). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, May 11, 2021). M4.8 Earthquake 11 km S of Bilisht, Albania — May 11, 2021. Retrieved December 7, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000e277/