4.8

M4.8 Earthquake 81 km SSW of Jiquilillo, Nicaragua — February 22, 2021

2021-02-22 21:27:01 UTC (2021-02-22) · approx. 3:27 PM UTC-6 local

Felt by 2 people across nearby locations.

MagnitudeM4.8(mb)
Time21:27 UTC≈ 3:27 PM UTC-6
Depth35.0 kmshallow crustal
Coordinates12.119°, -87.840°
Felt by2DYFI responses
Status✓ Reviewed by USGS

On February 22, 2021 at 21:27 UTC, a magnitude 4.8 shallow crustal earthquake struck 81 km SSW of Jiquilillo, Nicaragua, at a depth of 35.0 km and coordinates 12.1193°, -87.8399°.

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 12.12°, -87.84°

Did You Feel It? — community-reported shaking

Aggregated felt-report intensity from 2 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 81 km SSW of Jiquilillo, Nicaragua

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

Earthquake Details

Magnitude
4.8 mb
Depth
35.0 km
shallow crustal
Location
12.1193°N
-87.8399°E
Felt Reports
2
DYFI responses
Community Intensity
6.1
CDI from reports

Technical Information

Event ID
us6000dk88
Event Type
earthquake
Status
✓ Reviewed
Significance
356
Azimuthal Gap
119.0°
Min Station Distance
0.984°
RMS Residual
0.95 sec
Last Updated
2021-05-04 14:16:25 UTC

Common Questions

How strong was the magnitude 4.8 earthquake near Jiquilillo, Nicaragua?

The magnitude 4.8 earthquake that struck 81 km SSW of Jiquilillo, Nicaragua on February 22, 2021 at 21:27 UTC had a depth of 35.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 12.1193°, -87.8399°, which is 81 km SSW of Jiquilillo, Nicaragua.

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: us6000dk88). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, February 22, 2021). M4.8 Earthquake 81 km SSW of Jiquilillo, Nicaragua — February 22, 2021. Retrieved May 4, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000dk88/