4.8

M4.8 Earthquake 116 km ESE of Honiara, Solomon Islands — August 21, 2020

2020-08-21 23:12:33 UTC (2020-08-21) · approx. 10:12 AM UTC+11 local

MagnitudeM4.8(mb)
Time23:12 UTC≈ 10:12 AM UTC+11
Depth50.6 kmshallow crustal
Coordinates-10.008°, 160.838°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 21, 2020 at 23:12 UTC, a magnitude 4.8 shallow crustal earthquake struck 116 km ESE of Honiara, Solomon Islands, at a depth of 50.6 km and coordinates -10.0081°, 160.8375°.

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 -10.01°, 160.84°

Earthquake Details

Magnitude
4.8 mb
Depth
50.6 km
shallow crustal
Location
-10.0081°N
160.8375°E

Technical Information

Event ID
us6000bit5
Event Type
earthquake
Status
✓ Reviewed
Significance
354
Azimuthal Gap
78.0°
Min Station Distance
1.044°
RMS Residual
0.60 sec
Last Updated
2020-10-31 19:06:15 UTC

Common Questions

How strong was the magnitude 4.8 earthquake near Honiara, Solomon Islands?

The magnitude 4.8 earthquake that struck 116 km ESE of Honiara, Solomon Islands on August 21, 2020 at 23:12 UTC had a depth of 50.6 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -10.0081°, 160.8375°, which is 116 km ESE of Honiara, Solomon Islands.

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: us6000bit5). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, August 21, 2020). M4.8 Earthquake 116 km ESE of Honiara, Solomon Islands — August 21, 2020. Retrieved October 31, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000bit5/