4.7

M4.7 Earthquake 64 km SE of Honiara, Solomon Islands — March 1, 2021

2021-03-01 20:10:02 UTC (2021-03-01) · approx. 7:10 AM UTC+11 local

MagnitudeM4.7(mb)
Time20:10 UTC≈ 7:10 AM UTC+11
Depth28.7 kmshallow crustal
Coordinates-9.879°, 160.324°
Felt byNo felt reports
Status✓ Reviewed by USGS

On March 1, 2021 at 20:10 UTC, a magnitude 4.7 shallow crustal earthquake struck 64 km SE of Honiara, Solomon Islands, at a depth of 28.7 km and coordinates -9.8791°, 160.3242°.

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 -9.88°, 160.32°

Earthquake Details

Magnitude
4.7 mb
Depth
28.7 km
shallow crustal
Location
-9.8791°N
160.3242°E

Technical Information

Event ID
us7000dg0k
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Azimuthal Gap
78.0°
Min Station Distance
0.574°
RMS Residual
0.76 sec
Last Updated
2021-05-13 22:39:46 UTC

Common Questions

How strong was the magnitude 4.7 earthquake near Honiara, Solomon Islands?

The magnitude 4.7 earthquake that struck 64 km SE of Honiara, Solomon Islands on March 1, 2021 at 20:10 UTC had a depth of 28.7 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -9.8791°, 160.3242°, which is 64 km SE of Honiara, Solomon Islands.

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: us7000dg0k). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, March 1, 2021). M4.7 Earthquake 64 km SE of Honiara, Solomon Islands — March 1, 2021. Retrieved May 13, 2021 from https://www.earthquaketracker.org/earthquakes/event/us7000dg0k/