4.7

M4.7 Earthquake south of the Kermadec IslandsJune 28, 2024

2024-06-28 17:03:35 UTC (2024-06-28) · approx. 5:03 AM UTC-12 local

MagnitudeM4.7(mb)
Time17:03 UTC5:03 AM UTC-12
Depth10.0 kmshallow crustal
Coordinates-34.467°, -178.691°
Felt byNo felt reports
Status✓ Reviewed by USGS

On June 28, 2024 at 17:03 UTC, a magnitude 4.7 shallow crustal earthquake struck south of the Kermadec Islands, at a depth of 10.0 km and coordinates -34.4667°, -178.6912°. This earthquake was detected by 57 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 340, 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.

Map showing earthquake epicenter at -34.47°, -178.69°

Earthquake Details

Magnitude
4.7 mb
Depth
10.0 km
shallow crustal
Location
-34.4667°N
-178.6912°E

Technical Information

Event ID
us6000n8z8
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Stations Used
57
Azimuthal Gap
70.0°
Min Station Distance
3.932°
RMS Residual
0.85 sec
Last Updated
2024-09-04 21:57:43 UTC

Common Questions

How strong was the magnitude 4.7 earthquake south of the Kermadec Islands?

The magnitude 4.7 earthquake that struck south of the Kermadec Islands on June 28, 2024 at 17:03 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 -34.4667°, -178.6912°, which is south of the Kermadec Islands.

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: us6000n8z8). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, June 28, 2024). M4.7 Earthquake south of the Kermadec IslandsJune 28, 2024. Retrieved September 4, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000n8z8/