5.2

M5.2 Earthquake 220 km SW of Gizo, Solomon Islands — March 19, 2021

2021-03-19 01:54:26 UTC (2021-03-19) · approx. 11:54 AM UTC+10 local

MagnitudeM5.2(mww)
Time01:54 UTC≈ 11:54 AM UTC+10
Depth10.0 kmshallow crustal
Coordinates-9.578°, 155.491°
Felt byNo felt reports
Status✓ Reviewed by USGS

On March 19, 2021 at 01:54 UTC, a magnitude 5.2 shallow crustal earthquake struck 220 km SW of Gizo, Solomon Islands, at a depth of 10.0 km and coordinates -9.5780°, 155.4911°.

Physical scale: An earthquake of magnitude 5.2 releases seismic energy equivalent to roughly 951 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.3 km — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -9.58°, 155.49°

Earthquake Details

Magnitude
5.2 mww
Depth
10.0 km
shallow crustal
Location
-9.5780°N
155.4911°E

Technical Information

Event ID
us7000dktv
Event Type
earthquake
Status
✓ Reviewed
Significance
416
Azimuthal Gap
30.0°
Min Station Distance
4.398°
RMS Residual
0.82 sec
Last Updated
2025-12-22 18:54:34 UTC

Common Questions

How strong was the magnitude 5.2 earthquake near Gizo, Solomon Islands?

The magnitude 5.2 earthquake that struck 220 km SW of Gizo, Solomon Islands on March 19, 2021 at 01:54 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at -9.5780°, 155.4911°, which is 220 km SW of Gizo, Solomon Islands.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.2 earthquakes can continue for days to weeks and gradually diminish over time.

Authoritative source: USGS event page (event ID: us7000dktv). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2021, March 19, 2021). M5.2 Earthquake 220 km SW of Gizo, Solomon Islands — March 19, 2021. Retrieved December 22, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000dktv/