Earthquake · Reviewed by USGS

M3.1 earthquake 7 km NNW of Trujillo Alto, Puerto Rico

A magnitude 3.1 earthquake struck 7 km NNW of Trujillo Alto, Puerto Rico at Oct 6, 2026, 15:42 UTC, at a depth of 113 km. The epicentre was 7 km (4 mi) NNW of Trujillo Alto.

Details

Magnitude	3.1 md
Time	Oct 6, 2026, 15:42 UTC
Depth	113.0 km
Coordinates	18.409, -66.045
Felt reports	0
Tsunami flag	None
Source	USGS event page

Fig. 1The epicentre and other earthquakes within 100 km, since the day before

01 — Nearby

Nearest cities

02 — Around it

Other earthquakes within 100 km

Other earthquakes within 100 km since the day before this event
Magnitude	Location	Distance	Depth	Time
3.0	66 km N of San Juan, Puerto Rico	73 km / 46 mi	depth 31 km	Oct 26, 03:41 UTC
3.3	24 km ESE of Isabel Segunda, Puerto Rico	94 km / 58 mi	depth 152 km	Oct 24, 06:49 UTC
2.2	27 km SE of Emajagua, Puerto Rico	75 km / 47 mi	depth 9 km	Oct 23, 00:16 UTC
1.8	3 km W of Tallaboa, Puerto Rico	87 km / 54 mi	depth 13 km	Oct 22, 21:44 UTC
1.9	4 km NNW of Guayanilla, Puerto Rico	89 km / 56 mi	depth 8 km	Oct 21, 13:37 UTC
2.3	5 km SE of Maria Antonia, Puerto Rico	100 km / 62 mi	depth 13 km	Oct 21, 13:17 UTC
3.3	53 km N of Brenas, Puerto Rico	67 km / 41 mi	depth 26 km	Oct 21, 05:01 UTC
1.8	2 km WSW of Guayanilla, Puerto Rico	92 km / 57 mi	depth 14 km	Oct 20, 06:58 UTC
2.0	1 km SW of Indios, Puerto Rico	96 km / 59 mi	depth 16 km	Oct 19, 20:42 UTC
1.9	2 km NNW of Aibonito, Puerto Rico	37 km / 23 mi	depth 14 km	Oct 18, 21:06 UTC
2.2	6 km SSE of Ponce, Puerto Rico	78 km / 48 mi	depth 14 km	Oct 18, 11:09 UTC
2.1	5 km SE of Maria Antonia, Puerto Rico	99 km / 62 mi	depth 14 km	Oct 18, 10:08 UTC
2.7	7 km SSE of Ponce, Puerto Rico	78 km / 48 mi	depth 13 km	Oct 17, 16:38 UTC
2.4	6 km SSE of Ponce, Puerto Rico	78 km / 48 mi	depth 15 km	Oct 17, 12:52 UTC
2.4	7 km SSE of Ponce, Puerto Rico	78 km / 49 mi	depth 13 km	Oct 16, 18:31 UTC
2.3	7 km SSE of Ponce, Puerto Rico	78 km / 48 mi	depth 14 km	Oct 16, 18:01 UTC
2.3	7 km SSE of Ponce, Puerto Rico	78 km / 48 mi	depth 14 km	Oct 16, 17:26 UTC
2.0	1 km NNE of Magas Arriba, Puerto Rico	87 km / 54 mi	depth 12 km	Oct 15, 12:15 UTC
3.0	26 km SE of Emajagua, Puerto Rico	74 km / 46 mi	depth 5 km	Oct 15, 04:33 UTC
3.1	22 km NNE of Brenas, Puerto Rico	38 km / 23 mi	depth 74 km	Oct 14, 23:24 UTC
2.1	11 km SSE of Indios, Puerto Rico	98 km / 61 mi	depth 5 km	Oct 14, 22:22 UTC
2.3	21 km SSW of Potala Pastillo, Puerto Rico	85 km / 53 mi	depth 9 km	Oct 14, 21:38 UTC
3.1	48 km N of Hatillo, Puerto Rico	99 km / 61 mi	depth 36 km	Oct 14, 18:02 UTC
2.2	7 km SSE of Ponce, Puerto Rico	78 km / 49 mi	depth 14 km	Oct 13, 14:31 UTC
2.7	6 km NE of Isabela, Puerto Rico	99 km / 62 mi	depth 17 km	Oct 13, 10:41 UTC

USGS can revise magnitude and location after the first report. See magnitude vs intensity and aftershocks.