4.5

M4.5 Earthquake 4 km N of Aratoca, ColombiaMarch 2, 2023

2023-03-02 20:38:15 UTC (2023-03-02) · approx. 3:38 PM UTC-5 local

MagnitudeM4.5(mb)
Time20:38 UTC3:38 PM UTC-5
Depth156.8 kmintermediate depth
Coordinates6.735°, -73.015°
Felt byNo felt reports
Status✓ Reviewed by USGS

On March 2, 2023 at 20:38 UTC, a magnitude 4.5 intermediate depth earthquake struck 4 km N of Aratoca, Colombia, at a depth of 156.8 km and coordinates 6.7351°, -73.0147°. This earthquake was detected by 33 seismic stations with good location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.

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 6.74°, -73.01°

Earthquake Details

Magnitude
4.5 mb
Depth
156.8 km
intermediate depth
Location
6.7351°N
-73.0147°E

Technical Information

Event ID
us7000jihp
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
33
Azimuthal Gap
136.0°
Min Station Distance
0.840°
RMS Residual
0.85 sec
Last Updated
2023-05-08 02:00:26 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Aratoca, Colombia?

The magnitude 4.5 earthquake that struck 4 km N of Aratoca, Colombia on March 2, 2023 at 20:38 UTC had a depth of 156.8 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 6.7351°, -73.0147°, which is 4 km N of Aratoca, Colombia.

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: us7000jihp). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, March 2, 2023). M4.5 Earthquake 4 km N of Aratoca, ColombiaMarch 2, 2023. Retrieved May 8, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000jihp/