4.5

M4.5 Earthquake 122 km S of Iztapa, GuatemalaApril 20, 2022

2022-04-20 23:42:45 UTC (2022-04-20) · approx. 5:42 PM UTC-6 local

MagnitudeM4.5(mb)
Time23:42 UTC5:42 PM UTC-6
Depth10.0 kmshallow crustal
Coordinates12.822°, -90.687°
Felt byNo felt reports
Status✓ Reviewed by USGS

On April 20, 2022 at 23:42 UTC, a magnitude 4.5 shallow crustal earthquake struck 122 km S of Iztapa, Guatemala, at a depth of 10.0 km and coordinates 12.8221°, -90.6870°.

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 12.82°, -90.69°

Earthquake Details

Magnitude
4.5 mb
Depth
10.0 km
shallow crustal
Location
12.8221°N
-90.6870°E

Technical Information

Event ID
us6000hf5a
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Azimuthal Gap
103.0°
Min Station Distance
1.390°
RMS Residual
0.73 sec
Last Updated
2022-06-26 01:20:17 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Iztapa, Guatemala?

The magnitude 4.5 earthquake that struck 122 km S of Iztapa, Guatemala on April 20, 2022 at 23:42 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at 12.8221°, -90.6870°, which is 122 km S of Iztapa, Guatemala.

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: us6000hf5a). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2022, April 20, 2022). M4.5 Earthquake 122 km S of Iztapa, GuatemalaApril 20, 2022. Retrieved June 26, 2022 from https://www.earthquaketracker.org/earthquakes/event/us6000hf5a/