M5.1 Earthquake in the Balleny Islands region — October 29, 2026
2026-10-29 05:33:36 UTC (1 hour ago) · approx. 4:33 PM UTC+11 local
On October 29, 2026 at 05:33 UTC, a magnitude 5.1 shallow crustal earthquake struck in the Balleny Islands region, at a depth of 10.0 km and coordinates -61.3277°, 161.1643°. This earthquake was detected by 34 seismic stations with good location accuracy and was assigned a USGS significance rating of 400, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 5.1 releases seismic energy equivalent to roughly 674 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 2.0 km — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
161.1643°E
Technical Information
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Common Questions
How strong was the magnitude 5.1 earthquake in the Balleny Islands region?
The magnitude 5.1 earthquake that struck in the Balleny Islands region on October 29, 2026 at 05:33 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.
Where did the earthquake occur?
The earthquake epicenter was located at -61.3277°, 161.1643°, which is in the Balleny Islands region.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.1 earthquakes can continue for days to weeks and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000ttx8). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2026, October 29, 2026). M5.1 Earthquake in the Balleny Islands region — October 29, 2026. Retrieved October 29, 2026 from https://www.earthquaketracker.org/earthquakes/event/us7000ttx8/