M4.6 Earthquake in the Macquarie Island region — May 19, 2022
2022-05-19 16:19:05 UTC (2022-05-19) · approx. 3:19 AM UTC+11 local
On May 19, 2022 at 16:19 UTC, a magnitude 4.6 shallow crustal earthquake struck in the Macquarie Island region, at a depth of 7.1 km and coordinates -53.9875°, 159.1890°. This earthquake was detected by 20 seismic stations with good location accuracy and was assigned a USGS significance rating of 326, placing it among routine seismic activity.
Physical scale: An earthquake of magnitude 4.6 releases seismic energy equivalent to roughly 120 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 899 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
159.1890°E
Technical Information
Common Questions
How strong was the magnitude 4.6 earthquake in the Macquarie Island region?
The magnitude 4.6 earthquake that struck in the Macquarie Island region on May 19, 2022 at 16:19 UTC had a depth of 7.1 km. For context, this was a light earthquake commonly felt near the epicenter.
Where did the earthquake occur?
The earthquake epicenter was located at -53.9875°, 159.1890°, which is in the Macquarie Island region.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.6 earthquakes can continue for several days and gradually diminish over time.
Actions
Authoritative source: USGS event page (event ID: us7000hcfr). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2022, May 19, 2022). M4.6 Earthquake in the Macquarie Island region — May 19, 2022. Retrieved July 24, 2022 from https://www.earthquaketracker.org/earthquakes/event/us7000hcfr/