4.7

M4.7 Earthquake 70 km NE of Savannah Bight, HondurasAugust 17, 2023

2023-08-17 21:11:31 UTC (2023-08-17) · approx. 3:11 PM UTC-6 local

MagnitudeM4.7(mb)
Time21:11 UTC3:11 PM UTC-6
Depth10.0 kmshallow crustal
Coordinates16.973°, -85.468°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 17, 2023 at 21:11 UTC, a magnitude 4.7 shallow crustal earthquake struck 70 km NE of Savannah Bight, Honduras, at a depth of 10.0 km and coordinates 16.9733°, -85.4677°. This earthquake was detected by 100 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 340, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at 16.97°, -85.47°

Earthquake Details

Magnitude
4.7 mb
Depth
10.0 km
shallow crustal
Location
16.9733°N
-85.4677°E

Technical Information

Event ID
us7000kp4e
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Stations Used
100
Azimuthal Gap
36.0°
Min Station Distance
3.382°
RMS Residual
0.42 sec
Last Updated
2023-10-27 21:39:03 UTC

Common Questions

How strong was the magnitude 4.7 earthquake near Savannah Bight, Honduras?

The magnitude 4.7 earthquake that struck 70 km NE of Savannah Bight, Honduras on August 17, 2023 at 21:11 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 16.9733°, -85.4677°, which is 70 km NE of Savannah Bight, Honduras.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000kp4e). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, August 17, 2023). M4.7 Earthquake 70 km NE of Savannah Bight, HondurasAugust 17, 2023. Retrieved October 27, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000kp4e/