4.3

M4.3 Earthquake 167 km SSE of Lata, Solomon Islands — March 21, 2021

2021-03-21 17:49:46 UTC (2021-03-21) · approx. 4:49 AM UTC+11 local

MagnitudeM4.3(mb)
Time17:49 UTC≈ 4:49 AM UTC+11
Depth132.6 kmintermediate depth
Coordinates-12.008°, 166.608°
Felt byNo felt reports
Status✓ Reviewed by USGS

On March 21, 2021 at 17:49 UTC, a magnitude 4.3 intermediate depth earthquake struck 167 km SSE of Lata, Solomon Islands, at a depth of 132.6 km and coordinates -12.0078°, 166.6076°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -12.01°, 166.61°

Earthquake Details

Magnitude
4.3 mb
Depth
132.6 km
intermediate depth
Location
-12.0078°N
166.6076°E

Technical Information

Event ID
us6000dxft
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Azimuthal Gap
209.0°
Min Station Distance
3.467°
RMS Residual
0.47 sec
Last Updated
2021-06-02 15:23:16 UTC

Common Questions

How strong was the magnitude 4.3 earthquake near Lata, Solomon Islands?

The magnitude 4.3 earthquake that struck 167 km SSE of Lata, Solomon Islands on March 21, 2021 at 17:49 UTC had a depth of 132.6 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000dxft). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, March 21, 2021). M4.3 Earthquake 167 km SSE of Lata, Solomon Islands — March 21, 2021. Retrieved June 2, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000dxft/