4.7

M4.7 Earthquake 35 km ESE of Lata, Solomon IslandsJanuary 16, 2023

2023-01-16 21:30:07 UTC (2023-01-16) · approx. 8:30 AM UTC+11 local

MagnitudeM4.7(mb)
Time21:30 UTC8:30 AM UTC+11
Depth11.0 kmshallow crustal
Coordinates-10.895°, 166.067°
Felt byNo felt reports
Status✓ Reviewed by USGS

On January 16, 2023 at 21:30 UTC, a magnitude 4.7 shallow crustal earthquake struck 35 km ESE of Lata, Solomon Islands, at a depth of 11.0 km and coordinates -10.8952°, 166.0671°. This earthquake was detected by 59 seismic stations with good 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 -10.90°, 166.07°

Earthquake Details

Magnitude
4.7 mb
Depth
11.0 km
shallow crustal
Location
-10.8952°N
166.0671°E

Technical Information

Event ID
us7000j4sf
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Stations Used
59
Azimuthal Gap
114.0°
Min Station Distance
4.658°
RMS Residual
0.48 sec
Last Updated
2023-03-31 19:44:44 UTC

Common Questions

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

The magnitude 4.7 earthquake that struck 35 km ESE of Lata, Solomon Islands on January 16, 2023 at 21:30 UTC had a depth of 11.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -10.8952°, 166.0671°, which is 35 km ESE of Lata, 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: us7000j4sf). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, January 16, 2023). M4.7 Earthquake 35 km ESE of Lata, Solomon IslandsJanuary 16, 2023. Retrieved March 31, 2023 from https://www.earthquaketracker.org/earthquakes/event/us7000j4sf/