5.9

M5.9 Earthquake 234 km E of Levuka, Fiji — October 6, 2020

2020-10-06 10:11:46 UTC (2020-10-06) · approx. 10:11 PM UTC-12 local

MagnitudeM5.9(mww)
Time10:11 UTC≈ 10:11 PM UTC-12
Depth633.0 kmdeep-focus
Coordinates-17.996°, -178.472°
Felt byNo felt reports
Status✓ Reviewed by USGS· green PAGER
green Alert— no significant casualties or damage expected

On October 6, 2020 at 10:11 UTC, a magnitude 5.9 deep-focus earthquake struck 234 km E of Levuka, Fiji, at a depth of 633.0 km and coordinates -17.9962°, -178.4717°. The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected.

Physical scale: An earthquake of magnitude 5.9 releases seismic energy equivalent to roughly 11 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 7.1 km — a useful intuition for the size of the slip patch on the fault.

The epicenter is located in Fiji, a region characterized by the Fiji Fracture Zone at the junction of the Pacific and Australian plates, with deep-focus seismicity from the subducted slab. View all earthquakes in Fiji.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at -18.00°, -178.47°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M5.9 earthquake near 234 km E of Levuka, Fiji

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Earthquake Details

Magnitude
5.9 mww
Depth
633.0 km
deep-focus
Location
-17.9962°N
-178.4717°E
Intensity (MMI)
1.5
weak

Technical Information

Event ID
us6000c617
Event Type
earthquake
Status
✓ Reviewed
Significance
536
Azimuthal Gap
24.0°
Min Station Distance
3.319°
RMS Residual
0.90 sec
Last Updated
2025-12-22 18:45:31 UTC

Common Questions

How strong was the magnitude 5.9 earthquake near Levuka, Fiji?

The magnitude 5.9 earthquake that struck 234 km E of Levuka, Fiji on October 6, 2020 at 10:11 UTC had a depth of 633.0 km. For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at -17.9962°, -178.4717°, which is 234 km E of Levuka, Fiji. View all earthquakes in Fiji.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.9 earthquakes can continue for days to weeks and gradually diminish over time.

Authoritative source: USGS event page (event ID: us6000c617). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2020, October 6, 2020). M5.9 Earthquake 234 km E of Levuka, Fiji — October 6, 2020. Retrieved December 22, 2025 from https://www.earthquaketracker.org/earthquakes/event/us6000c617/