M4.7 Earthquake west of Macquarie Island — February 6, 2022
2022-02-06 21:57:34 UTC (2022-02-06) · approx. 7:57 AM UTC+10 local
On February 6, 2022 at 21:57 UTC, a magnitude 4.7 shallow crustal earthquake struck west of Macquarie Island, at a depth of 10.0 km and coordinates -58.3553°, 148.9228°.
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.
Earthquake Details
148.9228°E
Technical Information
Common Questions
How strong was the magnitude 4.7 earthquake west of Macquarie Island?
The magnitude 4.7 earthquake that struck west of Macquarie Island on February 6, 2022 at 21:57 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 -58.3553°, 148.9228°, which is west of Macquarie Island.
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.
Actions
Authoritative source: USGS event page (event ID: us7000gjrm). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, February 6, 2022). M4.7 Earthquake west of Macquarie Island — February 6, 2022. Retrieved April 19, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000gjrm/