Earthquake · reviewed by a seismologist
M 2.3md
Earthquake near Guánica, PR
USGS: 5 km WSW of Guánica, Puerto Rico
35 km (22 mi) W of Ponce, PR · 34 km (21 mi) SE of Mayagüez, PR
- When
- 12:06 pm AST on 2 October 2026 ()
- Where
- 5 km (3 mi) WSW of Guánica, PR · earthquakes near Guánica
- Magnitude
- M 2.3 (md)
- Depth
- 8.0 km below the surface
- Felt
- no reports yet
- Nearest
- Guánica Municipio, 3 km E
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 9 hours ago
A magnitude 2.3 earthquake was recorded 5 km (3 mi) WSW of Guánica, PR, at 12:06 pm AST on 2 October 2026 (16:06 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
Earthquakes near other towns within 30 km: Fuig, Maria Antonia, Liborio Negron Torres, La Parguera, Lluveras, Palomas.
How big was it?
This earthquake released about 77 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
- Magna, Utah 2020 M 5.7 140,000× the energy of this one
- Around the size people start to feel M 3.0 12× the energy of this one
- This earthquake M 2.3 about 77 lb of TNT
Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.
For this area
The largest earthquake within 50 km since 2016 was M 6.4 on 2020-01-07 — about 1,600,000 times the energy of this one.
Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 17.9538, -66.9527. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Guánica Municipio, PR | 3 km (2 mi) | E | earthquakes near Guánica Municipio |
| Lajas Municipio, PR | 10 km (6 mi) | WNW | earthquakes near Lajas Municipio |
| Sabana Grande Municipio, PR | 15 km (9 mi) | N | earthquakes near Sabana Grande Municipio |
| Guayanilla Municipio, PR | 17 km (11 mi) | ENE | earthquakes near Guayanilla Municipio |
| Yauco Municipio, PR | 18 km (11 mi) | NE | earthquakes near Yauco Municipio |
| San Germán Municipio, PR | 19 km (12 mi) | NNW | earthquakes near San Germán Municipio |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
1 earthquake has been recorded within 50 km since this one.
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.