4.3

M4.3 Earthquake in the Fiji region — July 26, 2020

2020-07-26 22:15:04 UTC (2020-07-26) · approx. 10:15 AM UTC-12 local

MagnitudeM4.3(mb)
Time22:15 UTC≈ 10:15 AM UTC-12
Depth611.8 kmdeep-focus
Coordinates-18.762°, -177.511°
Felt byNo felt reports
Status✓ Reviewed by USGS

On July 26, 2020 at 22:15 UTC, a magnitude 4.3 deep-focus earthquake struck in the Fiji region, at a depth of 611.8 km and coordinates -18.7616°, -177.5109°.

Physical scale: An earthquake of magnitude 4.3 releases seismic energy equivalent to roughly 43 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 558 m — a useful intuition for the size of the slip patch on the fault.

Map showing earthquake epicenter at -18.76°, -177.51°

Earthquake Details

Magnitude
4.3 mb
Depth
611.8 km
deep-focus
Location
-18.7616°N
-177.5109°E

Technical Information

Event ID
us6000b6tk
Event Type
earthquake
Status
✓ Reviewed
Significance
284
Azimuthal Gap
86.0°
Min Station Distance
4.335°
RMS Residual
0.54 sec
Last Updated
2020-10-03 17:32:33 UTC

Common Questions

How strong was the magnitude 4.3 earthquake in the Fiji region?

The magnitude 4.3 earthquake that struck in the Fiji region on July 26, 2020 at 22:15 UTC had a depth of 611.8 km. For context, this was a light earthquake commonly felt near the epicenter.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.3 earthquakes can continue for several days and gradually diminish over time.

Understanding This Data

Magnitude 4.3 earthquakes are often felt but rarely cause damage.

Learn more about magnitude →

Authoritative source: USGS event page (event ID: us6000b6tk). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, July 26, 2020). M4.3 Earthquake in the Fiji region — July 26, 2020. Retrieved October 3, 2020 from https://www.earthquaketracker.org/earthquakes/event/us6000b6tk/