4.5

M4.5 Earthquake 87 km SE of Lata, Solomon IslandsOctober 12, 2023

2023-10-12 22:54:43 UTC (2023-10-12) · approx. 9:54 AM UTC+11 local

MagnitudeM4.5(mb)
Time22:54 UTC9:54 AM UTC+11
Depth102.2 kmintermediate depth
Coordinates-11.357°, 166.276°
Felt byNo felt reports
Status✓ Reviewed by USGS

On October 12, 2023 at 22:54 UTC, a magnitude 4.5 intermediate depth earthquake struck 87 km SE of Lata, Solomon Islands, at a depth of 102.2 km and coordinates -11.3575°, 166.2763°. This earthquake was detected by 37 seismic stations with good location accuracy and was assigned a USGS significance rating of 312, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 4.5 releases seismic energy equivalent to roughly 85 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 767 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -11.36°, 166.28°

Earthquake Details

Magnitude
4.5 mb
Depth
102.2 km
intermediate depth
Location
-11.3575°N
166.2763°E

Technical Information

Event ID
us6000lf8m
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Stations Used
37
Azimuthal Gap
147.0°
Min Station Distance
4.164°
RMS Residual
0.43 sec
Last Updated
2023-12-16 22:13:08 UTC

Common Questions

How strong was the magnitude 4.5 earthquake near Lata, Solomon Islands?

The magnitude 4.5 earthquake that struck 87 km SE of Lata, Solomon Islands on October 12, 2023 at 22:54 UTC had a depth of 102.2 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -11.3575°, 166.2763°, which is 87 km SE of Lata, Solomon Islands.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.5 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000lf8m). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2023, October 12, 2023). M4.5 Earthquake 87 km SE of Lata, Solomon IslandsOctober 12, 2023. Retrieved December 16, 2023 from https://www.earthquaketracker.org/earthquakes/event/us6000lf8m/