4.7

M4.7 Earthquake 60 km ESE of Andamarca, PeruAugust 12, 2024

2024-08-12 20:13:00 UTC (2024-08-12) · approx. 3:13 PM UTC-5 local

MagnitudeM4.7(mb)
Time20:13 UTC3:13 PM UTC-5
Depth51.6 kmshallow crustal
Coordinates-11.927°, -74.287°
Felt byNo felt reports
Status✓ Reviewed by USGS

On August 12, 2024 at 20:13 UTC, a magnitude 4.7 shallow crustal earthquake struck 60 km ESE of Andamarca, Peru, at a depth of 51.6 km and coordinates -11.9274°, -74.2871°. This earthquake was detected by 52 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.

The epicenter is located in Peru, a region characterized by the northern Peru-Chile subduction zone, complicated by the subduction of the Nazca Ridge. The nearest mapped fault system is the Peru-Chile Trench. View all earthquakes in Peru.

Learn more: Magnitude scale · Aftershock sequences

Map showing earthquake epicenter at -11.93°, -74.29°

Earthquake Details

Magnitude
4.7 mb
Depth
51.6 km
shallow crustal
Location
-11.9274°N
-74.2871°E

Technical Information

Event ID
us6000njpn
Event Type
earthquake
Status
✓ Reviewed
Significance
340
Stations Used
52
Azimuthal Gap
77.0°
Min Station Distance
2.501°
RMS Residual
0.48 sec
Last Updated
2024-10-26 15:47:26 UTC

Common Questions

How strong was the magnitude 4.7 earthquake near Andamarca, Peru?

The magnitude 4.7 earthquake that struck 60 km ESE of Andamarca, Peru on August 12, 2024 at 20:13 UTC had a depth of 51.6 km. For context, this was a light earthquake commonly felt near the epicenter.

Where did the earthquake occur?

The earthquake epicenter was located at -11.9274°, -74.2871°, which is 60 km ESE of Andamarca, Peru. View all earthquakes in Peru.

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.

Has Peru had earthquakes this big before?

The largest recorded earthquake in Peru was the M8.0 Arequipa earthquake of June 23, 2001. Today's magnitude 4.7 event is significantly smaller than that historical record.

Authoritative source: USGS event page (event ID: us6000njpn). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2024, August 12, 2024). M4.7 Earthquake 60 km ESE of Andamarca, PeruAugust 12, 2024. Retrieved October 26, 2024 from https://www.earthquaketracker.org/earthquakes/event/us6000njpn/