3.7

M3.7 Earthquake 24 km SE of Boca de Yuma, Dominican RepublicDecember 21, 2021

2021-12-21 20:33:59 UTC (2021-12-21) · approx. 3:33 PM UTC-5 local

MagnitudeM3.7(md)
Time20:33 UTC3:33 PM UTC-5
Depth111.0 kmintermediate depth
Coordinates18.238°, -68.432°
Felt by1DYFI response
Status✓ Reviewed by USGS

On December 21, 2021 at 20:33 UTC, a magnitude 3.7 intermediate depth earthquake struck 24 km SE of Boca de Yuma, Dominican Republic, at a depth of 111.0 km and coordinates 18.2375°, -68.4323°.

Physical scale: An earthquake of magnitude 3.7 releases seismic energy equivalent to roughly 5.5 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 219 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 18.24°, -68.43°

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 M3.7 earthquake near 24 km SE of Boca de Yuma, Dominican Republic

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

Earthquake Details

Magnitude
3.7 md
Depth
111.0 km
intermediate depth
Location
18.2375°N
-68.4323°E
Felt Reports
1
DYFI responses
Community Intensity
4.7
CDI from reports

Technical Information

Event ID
pr2021355005
Event Type
earthquake
Status
✓ Reviewed
Significance
212
Stations Used
22
Azimuthal Gap
162.0°
Min Station Distance
0.281°
RMS Residual
0.49 sec
Last Updated
2022-08-06 16:50:15 UTC

Common Questions

How strong was the magnitude 3.7 earthquake near Boca de Yuma, Dominican Republic?

The magnitude 3.7 earthquake that struck 24 km SE of Boca de Yuma, Dominican Republic on December 21, 2021 at 20:33 UTC had a depth of 111.0 km. For context, this was a minor earthquake typically detected only by instruments.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 3.7 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 3.7 earthquakes are typically only recorded by instruments.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: pr2021355005). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, December 21, 2021). M3.7 Earthquake 24 km SE of Boca de Yuma, Dominican RepublicDecember 21, 2021. Retrieved August 6, 2022 from https://www.earthquaketracker.org/earthquakes/event/pr2021355005/