5.7

M5.7 Earthquake near Scotia Sea — August 22, 2026

2026-08-22 07:40:12 UTC (1 hour ago) · approx. 4:40 AM UTC-3 local

Aftershock of the M6.2 mainshock.

MagnitudeM5.7(mb)
Time07:40 UTC≈ 4:40 AM UTC-3
Depth10.0 kmshallow crustal
Coordinates-60.265°, -47.259°
Felt byNo felt reports
Status✓ Reviewed by USGS· green PAGER
green Alert— no significant casualties or damage expected

On August 22, 2026 at 07:40 UTC, a magnitude 5.7 shallow crustal earthquake struck near Scotia Sea, at a depth of 10.0 km and coordinates -60.2649°, -47.2591°. The USGS PAGER system issued a green alert level for this event, indicating no significant casualties or damage expected. This earthquake was detected by 55 seismic stations with excellent location accuracy and was assigned a USGS significance rating of 500, placing it among routine seismic activity.

Physical scale: An earthquake of magnitude 5.7 releases seismic energy equivalent to roughly 5 kilotons of TNT. Empirical fault-scaling laws (Wells & Coppersmith, 1994) estimate the subsurface rupture length at approximately 5.2 km — a useful intuition for the size of the slip patch on the fault.

This earthquake is part of an ongoing aftershock sequence following the magnitude 6.2 mainshock that occurred 54 minutes ago near Scotia Sea. Since the mainshock, the USGS has recorded 0 aftershocks in this area. Aftershock activity is expected to continue for weeks to months as stresses on surrounding faults redistribute.

Map showing earthquake epicenter at -60.26°, -47.26°

ShakeMap — predicted shaking intensity

Modeled ground-motion intensity contoured on the Modified Mercalli scale (MMI). Computed by the USGS from the moment-tensor solution and regional ground-motion prediction equations.

USGS ShakeMap intensity contours for the M5.7 earthquake near Scotia Sea

Source: U.S. Geological Survey ShakeMap. View interactive ShakeMap on USGS

Earthquake Details

Magnitude
5.7 mb
Depth
10.0 km
shallow crustal
Location
-60.2649°N
-47.2591°E
Intensity (MMI)
3.6
light

Technical Information

Event ID
us6000tmrn
Event Type
earthquake
Status
✓ Reviewed
Significance
500
Stations Used
55
Azimuthal Gap
69.0°
Min Station Distance
8.359°
RMS Residual
1.19 sec
Last Updated
2026-08-22 08:08:31 UTC

Nearby Earthquakes (Last 7 Days)

6.2
Scotia Sea
54 min ago · 10.0 km deep

Common Questions

How strong was the magnitude 5.7 earthquake near Scotia Sea?

The magnitude 5.7 earthquake that struck near Scotia Sea on August 22, 2026 at 07:40 UTC had a depth of 10.0 km. For context, this was a moderate earthquake that could be widely felt.

Where did the earthquake occur?

The earthquake epicenter was located at -60.2649°, -47.2591°, which is near Scotia Sea.

Were there aftershocks?

Aftershock activity is monitored continuously by the USGS. Aftershock sequences from magnitude 5.7 earthquakes can continue for days to weeks and gradually diminish over time.

Is this the same earthquake as the M6.2 one earlier?

No. This magnitude 5.7 earthquake is an aftershock of the larger magnitude 6.2 mainshock that occurred earlier near Scotia Sea. Aftershocks are smaller earthquakes triggered by stress changes from the mainshock.

Actions

View on USGSDid You Feel It?

Authoritative source: USGS event page (event ID: us6000tmrn). All scientific values on this page are sourced verbatim from the USGS feed.

Cite this page: EarthquakeTracker.org. (2026, August 22, 2026). M5.7 Earthquake near Scotia Sea — August 22, 2026. Retrieved August 22, 2026 from https://www.earthquaketracker.org/earthquakes/event/us6000tmrn/