4.5

M4.5 Earthquake 42 km W of Kirakira, Solomon Islands — July 20, 2020

2020-07-20 20:05:32 UTC (2020-07-20) · approx. 7:05 AM UTC+11 local

MagnitudeM4.5(mb)
Time20:05 UTC≈ 7:05 AM UTC+11
Depth95.2 kmintermediate depth
Coordinates-10.430°, 161.534°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 20, 2020 at 20:05 UTC, a magnitude 4.5 intermediate depth earthquake struck 42 km W of Kirakira, Solomon Islands, at a depth of 95.2 km and coordinates -10.4300°, 161.5336°.

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 -10.43°, 161.53°

Earthquake Details

Magnitude
4.5 mb
Depth
95.2 km
intermediate depth
Location
-10.4300°N
161.5336°E

Technical Information

Event ID
us7000arvz
Event Type
earthquake
Status
✓ Reviewed
Significance
312
Azimuthal Gap
100.0°
Min Station Distance
1.847°
RMS Residual
0.76 sec
Last Updated
2020-09-26 16:58:42 UTC

Common Questions

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

The magnitude 4.5 earthquake that struck 42 km W of Kirakira, Solomon Islands on July 20, 2020 at 20:05 UTC had a depth of 95.2 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -10.4300°, 161.5336°, which is 42 km W of Kirakira, 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: us7000arvz). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, July 20, 2020). M4.5 Earthquake 42 km W of Kirakira, Solomon Islands — July 20, 2020. Retrieved September 26, 2020 from https://www.earthquaketracker.org/earthquakes/event/us7000arvz/