M5.2 Earthquake southeast of the Loyalty Islands — September 1, 2021
2021-09-01 06:33:45 UTC (2021-09-01) · approx. 5:33 PM UTC+11 local
Felt by 5 people across nearby locations.
On September 1, 2021 at 06:33 UTC, a magnitude 5.2 intermediate depth earthquake struck southeast of the Loyalty Islands, at a depth of 108.8 km and coordinates -22.3369°, 171.5936°.
Physical scale: An earthquake of magnitude 5.2 releases seismic energy equivalent to roughly 951 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.3 km — a useful intuition for the size of the slip patch on the fault.
Did You Feel It? — community-reported shaking
Aggregated felt-report intensity from 5 citizen responses to the USGS Did You Feel It? system. Each colored zone represents the average MMI from reports in that area.
Source: U.S. Geological Survey Did You Feel It?. View on USGS · submit your own report
Earthquake Details
171.5936°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 5.2 earthquake southeast of the Loyalty Islands?
The magnitude 5.2 earthquake that struck southeast of the Loyalty Islands on September 1, 2021 at 06:33 UTC had a depth of 108.8 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at -22.3369°, 171.5936°, which is southeast of the Loyalty Islands.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.2 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000f6jk). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, September 1, 2021). M5.2 Earthquake southeast of the Loyalty Islands — September 1, 2021. Retrieved December 22, 2025 from https://www.earthquaketracker.org/earthquakes/event/us7000f6jk/