M3.6 earthquake 9 km NE of Barreal, San Juan, Argentina
A magnitude 3.6 earthquake struck 9 km NE of Barreal, San Juan, Argentina at 03:45 local time (06:45 UTC) on 12 Nov 2026, at a depth of 118 km, according to GFZ. The solution is preliminary and may be revised.
Data: GFZ · updated 2026-11-12 06:45 UTC · automatic solution
- Magnitude
- 3.6minor
local magnitude (Richter) (ML) - Depth
- 118.4 km
- Status
- Automatic
- Origin time
- 2026-11-12 06:45:22 UTC
- Local: 12 Nov 2026, 03:45:22 (America/Argentina/San Juan)
- Epicentre
- 31.599° S, 69.403° W
Circles show this event and others within 30 km from 7 days before to 30 days after. Lines: plate boundaries and GEM active faults. Open on the live map
Nearby places
| Place | Distance | Est. shaking |
|---|---|---|
| BarrealSan Juan, Argentina · pop. 5,062 | 9 km | INot felt |
| PocitoSan Juan, Argentina · pop. 40,969 | 78 km | INot felt |
| RawsonSan Juan, Argentina · pop. 130,258 | 82 km | INot felt |
| San JuanArgentina · pop. 109,123 | 83 km | INot felt |
| ChimbasSan Juan, Argentina · pop. 73,829 | 84 km | INot felt |
| SantiagoSantiago Metropolitan, Chile · pop. 4,837,295 | 238 km | INot felt |
| MaipúSantiago Metropolitan, Chile · pop. 503,635 | 248 km | INot felt |
| Puente AltoSantiago Metropolitan, Chile · pop. 568,106 | 249 km | INot felt |
Shaking is an estimate from the intensity prediction equation of Allen, Wald & Worden (2012), not an observation. Local ground and buildings can change it by a level or more.
Every agency's solution
Agencies locate earthquakes with their own stations and methods, so their numbers differ. We match reports of the same event by time, distance and magnitude and show them side by side. The headline uses GFZ.
| Agency | Magnitude | Depth | Epicentre | Time offset | Status |
|---|---|---|---|---|---|
| GFZheadlineGFZ via GEOFON, GFZ Helmholtz Centre for Geosciences | 3.6 ML | 118.4 km | 31.60° S, 69.40° W | – | Automatic |
How big was it?
Often felt by people at rest close to the epicentre, rarely causes damage.
It released roughly the energy of 4.1 t of TNT. Magnitude is logarithmic: each whole step means about 32 times more energy and 10 times larger waves on a seismogram. Depth matters too: at 118 km this was a intermediate-depth earthquake, which spreads shaking over a wider area but less intensely.
M3.6 releases about 34× the energy of M2.6, and its waves are about 10× taller on a seismogram. Energy: 4.1 t of TNT vs 120 kg of TNT.
Each square is the energy of one M2.6. Energy from log₁₀E = 1.5M + 4.8.
Aftershocks and nearby activity
No later earthquakes have been recorded within 30 km so far. 1 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.
Did you feel it?
Reports from people help show where shaking was strong. They are anonymous and shown here in aggregate.
Reports on SeismoAtlas
No reports yet.
Event id gfz2026weav. First recorded here 12 Nov 2026, 07:27:28 UTC. Solutions: GFZ (geofon:gfz2026weav). Cite as: SeismoAtlas, “M3.6 earthquake 9 km NE of Barreal, San Juan, Argentina”, https://seismoatlas.com/earthquake/gfz2026weav-m3-6-earthquake-9-km-ne-of-barreal-san-juan-argentina, data from GFZ.
JSON: /api/v1/events/gfz2026weav. SeismoAtlas is not an official warning service.