M4.0 Earthquake 91 km WSW of Kandrian, Papua New Guinea — June 23, 2021
2021-06-23 23:38:16 UTC (2021-06-23) · approx. 9:38 AM UTC+10 local
On June 23, 2021 at 23:38 UTC, a magnitude 4.0 shallow crustal earthquake struck 91 km WSW of Kandrian, Papua New Guinea, at a depth of 46.3 km and coordinates -6.4761°, 148.7659°.
Physical scale: An earthquake of magnitude 4.0 releases seismic energy equivalent to roughly 15 metric tons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 347 m — a useful intuition for the size of the slip patch on the fault.
Earthquake Details
148.7659°E
Technical Information
Nearby Earthquakes (Last 7 Days)
Common Questions
How strong was the magnitude 4.0 earthquake near Kandrian, Papua New Guinea?
The magnitude 4.0 earthquake that struck 91 km WSW of Kandrian, Papua New Guinea on June 23, 2021 at 23:38 UTC had a depth of 46.3 km. For context, this was a light earthquake commonly felt near the epicenter.
Were there aftershocks?
Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 4.0 earthquakes can continue for several days and gradually diminish over time.
Actions
Understanding This Data
Magnitude 4.0 earthquakes are often felt but rarely cause damage.
Authoritative source: USGS event page (event ID: us6000eqjz). All scientific values on this page are sourced verbatim from the USGS feed.
Cite this page: EarthquakeTracker.org. (2021, June 23, 2021). M4.0 Earthquake 91 km WSW of Kandrian, Papua New Guinea — June 23, 2021. Retrieved August 27, 2021 from https://www.earthquaketracker.org/earthquakes/event/us6000eqjz/