M4.2 earthquake 79 km W of Ollagüe, Chile
A magnitude 4.2 earthquake struck 79 km W of Ollagüe, Chile on Tue, Sep 30, 2025, 5:31 PM GMT-3 (20:31 UTC), 103 km (64 mi) below the surface.
A larger quake followed: M4.8 69 km NNE of Calama, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.2 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2025-09-30 20:31:06 UTC
- Depth
- 103.5 km (64.3 mi), intermediate-depth
- Epicenter
- 21.317° S, 69.011° W
- Region
- Chile
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was I, not felt shaking.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Normal
- Moment magnitude
- 4.2 Mwr
- Nodal plane 1
- Strike 14°, dip 71°, rake -87°
- Nodal plane 2
- Strike 186°, dip 20°, rake -98°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.8 km horizontally, 4.3 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- From location
- Station coverage gap
- 47°
- Stations used
- 64
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 20 in the 60 days after this one and 11 in the 30 days before it.
After
- 4.385 km W of Ollagüe, Chile · 363 days ago · 105 km deep · 6 km away
- 4.268 km NNE of Calama, Chile · 362 days ago · 121 km deep · 76 km away
- 4.355 km NNE of Calama, Chile · 353 days ago · 118 km deep · 81 km away
- 4.178 km W of Ollagüe, Chile · 352 days ago · 111 km deep · 23 km away
- 4.869 km NNE of Calama, Chile · 352 days ago · 116 km deep · 78 km away
- 4.266 km ESE of La Tirana, Chile · 349 days ago · 86 km deep · 82 km away
- 4.474 km ESE of La Tirana, Chile · 348 days ago · 102 km deep · 75 km away
- 4.267 km NNE of Calama, Chile · 347 days ago · 123 km deep · 81 km away
- 4.349 km SSW of Ollagüe, Chile · 339 days ago · 121 km deep · 69 km away
- 4.051 km NE of Calama, Chile · 331 days ago · 122 km deep · 95 km away
- 4.070 km NNE of Calama, Chile · 326 days ago · 141 km deep · 78 km away
- 4.194 km SSE of La Tirana, Chile · 325 days ago · 86 km deep · 37 km away
- 4.343 km WSW of Ollagüe, Chile · 325 days ago · 129 km deep · 37 km away
- 4.049 km W of Ollagüe, Chile · 315 days ago · 119 km deep · 30 km away
- 4.727 km WNW of Ollagüe, Chile · 311 days ago · 136 km deep · 57 km away
- 4.262 km NE of Calama, Chile · 310 days ago · 122 km deep · 87 km away
- 4.051 km NNE of Calama, Chile · 310 days ago · 114 km deep · 90 km away
- 4.273 km SW of Ollagüe, Chile · 309 days ago · 120 km deep · 60 km away
- 4.553 km S of Ollagüe, Chile · 308 days ago · 118 km deep · 85 km away
- 4.443 km SSW of Ollagüe, Chile · 307 days ago · 145 km deep · 72 km away
Before
- 4.251 km NNE of Calama, Chile · 366 days ago · 108 km deep · 80 km away
- 4.646 km W of Ollagüe, Chile · 368 days ago · 118 km deep · 38 km away
- 4.455 km W of Ollagüe, Chile · 369 days ago · 114 km deep · 28 km away
- 4.257 km SW of Ollagüe, Chile · 371 days ago · 136 km deep · 52 km away
- 4.341 km N of Calama, Chile · 372 days ago · 103 km deep · 86 km away
- 4.739 km N of Calama, Chile · 372 days ago · 102 km deep · 88 km away
- 4.137 km WNW of Ollagüe, Chile · 379 days ago · 131 km deep · 47 km away
- 4.548 km SSW of Ollagüe, Chile · 380 days ago · 122 km deep · 72 km away
- 4.152 km SW of Ollagüe, Chile · 384 days ago · 134 km deep · 56 km away
- 4.684 km WNW of Ollagüe, Chile · 388 days ago · 108 km deep · 40 km away
- 4.260 km SSW of Ollagüe, Chile · 391 days ago · 139 km deep · 65 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000rdws. Read Thu, Oct 1, 2026, 2:32 AM UTC.