4.1

M4.1 Earthquake 12 km WNW of San Vito, Costa RicaJuly 9, 2022

2022-07-09 20:42:35 UTC (2022-07-09) · approx. 2:42 PM UTC-6 local

MagnitudeM4.1(mb)
Time20:42 UTC2:42 PM UTC-6
Depth53.9 kmshallow crustal
Coordinates8.866°, -83.077°
Felt by1DYFI response
Status✓ Reviewed by USGS

On July 9, 2022 at 20:42 UTC, a magnitude 4.1 shallow crustal earthquake struck 12 km WNW of San Vito, Costa Rica, at a depth of 53.9 km and coordinates 8.8662°, -83.0773°.

Physical scale: An earthquake of magnitude 4.1 releases seismic energy equivalent to roughly 21 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 406 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 8.87°, -83.08°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 1 citizen response 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 M4.1 earthquake near 12 km WNW of San Vito, Costa Rica

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

Earthquake Details

Magnitude
4.1 mb
Depth
53.9 km
shallow crustal
Location
8.8662°N
-83.0773°E
Felt Reports
1
DYFI responses
Community Intensity
2.7
CDI from reports

Technical Information

Event ID
us6000i1a1
Event Type
earthquake
Status
✓ Reviewed
Significance
259
Stations Used
40
Azimuthal Gap
75.0°
Min Station Distance
0.391°
RMS Residual
0.89 sec
Last Updated
2022-09-24 21:26:05 UTC

Common Questions

How strong was the magnitude 4.1 earthquake near San Vito, Costa Rica?

The magnitude 4.1 earthquake that struck 12 km WNW of San Vito, Costa Rica on July 9, 2022 at 20:42 UTC had a depth of 53.9 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 4.1 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.1 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000i1a1). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, July 9, 2022). M4.1 Earthquake 12 km WNW of San Vito, Costa RicaJuly 9, 2022. Retrieved September 24, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000i1a1/