4.2

M4.2 Earthquake 1 km NNW of Aígio, GreeceDecember 13, 2022

2022-12-13 17:33:09 UTC (2022-12-13) · approx. 6:33 PM UTC+1 local

MagnitudeM4.2(mb)
Time17:33 UTC6:33 PM UTC+1
Depth75.8 kmintermediate depth
Coordinates38.263°, 22.076°
Felt byNo felt reports
Status✓ Reviewed by USGS

On December 13, 2022 at 17:33 UTC, a magnitude 4.2 intermediate depth earthquake struck 1 km NNW of Aígio, Greece, at a depth of 75.8 km and coordinates 38.2628°, 22.0759°.0

Physical scale: An earthquake of magnitude 4.2 releases seismic energy equivalent to roughly 30 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 476 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 38.26°, 22.08°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from submitted 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 M4.2 earthquake near 1 km NNW of Aígio, Greece

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

Earthquake Details

Magnitude
4.2 mb
Depth
75.8 km
intermediate depth
Location
38.2628°N
22.0759°E
Community Intensity
1.0
CDI from reports

Technical Information

Event ID
us6000j917
Event Type
earthquake
Status
✓ Reviewed
Significance
271
Stations Used
37
Azimuthal Gap
140.0°
Min Station Distance
0.784°
RMS Residual
0.49 sec
Last Updated
2023-02-18 22:04:08 UTC

Common Questions

How strong was the magnitude 4.2 earthquake near Aígio, Greece?

The magnitude 4.2 earthquake that struck 1 km NNW of Aígio, Greece on December 13, 2022 at 17:33 UTC had a depth of 75.8 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.2 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.2 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000j917). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, December 13, 2022). M4.2 Earthquake 1 km NNW of Aígio, GreeceDecember 13, 2022. Retrieved February 18, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000j917/