M4.7 Earthquake 98 km S of Encounter Bay, Australia — October 26, 2026
2026-10-26 21:18:11 UTC (1 hour ago) · approx. 6:18 AM UTC+9 local
Felt by 13 people across nearby locations.
On October 26, 2026 at 21:18 UTC, a magnitude 4.7 shallow crustal earthquake struck 98 km S of Encounter Bay, Australia, at a depth of 10.0 km and coordinates -36.4594°, 138.5321°. This earthquake was detected by 27 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 344, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.7 releases seismic energy equivalent to roughly 169 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 1.1 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 13 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
138.5321°E
Technical Information
Common Questions
How strong was the magnitude 4.7 earthquake near Encounter Bay, Australia?
The magnitude 4.7 earthquake that struck 98 km S of Encounter Bay, Australia on October 26, 2026 at 21:18 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 -36.4594°, 138.5321°, which is 98 km S of Encounter Bay, Australia.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.7 earthquakes can continue for several days and gradually diminish over time.
Authoritative source: USGS event page (event ID: us7000ttci). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, October 26, 2026). M4.7 Earthquake 98 km S of Encounter Bay, Australia — October 26, 2026. Retrieved October 26, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000ttci/