4.6

M4.6 Earthquake 284 km SW of Gizo, Solomon Islands — July 17, 2020

2020-07-17 22:17:21 UTC (2020-07-17) · approx. 8:17 AM UTC+10 local

MagnitudeM4.6(mb)
Time22:17 UTC≈ 8:17 AM UTC+10
Depth10.0 kmshallow crustal
Coordinates-9.752°, 154.860°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 17, 2020 at 22:17 UTC, a magnitude 4.6 shallow crustal earthquake struck 284 km SW of Gizo, Solomon Islands, at a depth of 10.0 km and coordinates -9.7518°, 154.8604°.

Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -9.75°, 154.86°

Earthquake Details

Magnitude
4.6 mb
Depth
10.0 km
shallow crustal
Location
-9.7518°N
154.8604°E

Technical Information

Event ID
us6000b2u4
Event Type
earthquake
Status
✓ Reviewed
Significance
326
Azimuthal Gap
49.0°
Min Station Distance
6.138°
RMS Residual
1.19 sec
Last Updated
2020-09-26 16:58:24 UTC

Common Questions

How strong was the magnitude 4.6 earthquake near Gizo, Solomon Islands?

The magnitude 4.6 earthquake that struck 284 km SW of Gizo, Solomon Islands on July 17, 2020 at 22:17 UTC had a depth of 10.0 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -9.7518°, 154.8604°, which is 284 km SW of Gizo, Solomon Islands.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000b2u4). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, July 17, 2020). M4.6 Earthquake 284 km SW of Gizo, Solomon Islands — July 17, 2020. Retrieved September 26, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000b2u4/