4.8

M4.8 Earthquake 71 km S of Masachapa, Nicaragua — April 22, 2021

2021-04-22 16:32:49 UTC (2021-04-22) · approx. 10:32 AM UTC-6 local

MagnitudeM4.8(mb)
Time16:32 UTC≈ 10:32 AM UTC-6
Depth44.0 kmshallow crustal
Coordinates11.144°, -86.601°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 22, 2021 at 16:32 UTC, a magnitude 4.8 shallow crustal earthquake struck 71 km S of Masachapa, Nicaragua, at a depth of 44.0 km and coordinates 11.1442°, -86.6011°.

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 11.14°, -86.60°

Earthquake Details

Magnitude
4.8 mb
Depth
44.0 km
shallow crustal
Location
11.1442°N
-86.6011°E

Technical Information

Event ID
us6000e3qj
Event Type
earthquake
Status
✓ Reviewed
Significance
354
Azimuthal Gap
149.0°
Min Station Distance
1.056°
RMS Residual
0.83 sec
Last Updated
2021-07-03 16:49:17 UTC

Common Questions

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

The magnitude 4.8 earthquake that struck 71 km S of Masachapa, Nicaragua on April 22, 2021 at 16:32 UTC had a depth of 44.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 11.1442°, -86.6011°, which is 71 km S of Masachapa, 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: us6000e3qj). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, April 22, 2021). M4.8 Earthquake 71 km S of Masachapa, Nicaragua — April 22, 2021. Retrieved July 3, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000e3qj/