28 Jul 2026, 17:59 UTC · Jul 28, 1:59 PM ET

M3.5 earthquake 4 km SSW of Indios, Puerto Rico

A magnitude 3.5 earthquake struck 4 km SSW of Indios, Puerto Rico at Jul 28, 1:59 PM ET, 12 km deep, minor – felt by people near the epicenter.

under 33–44–55–66+

Magnitude	3.5 md
Time	28 Jul 2026, 17:59 UTC
Location	17.957°, -66.841° – 4 km SSW of Indios, Puerto Rico
Depth	12.0 km
Felt reports	0
Max. estimated intensity (MMI)	3.4
USGS event	pr2026209001

Within 100 km

Other earthquakes nearby this year

Mag.	Where	When (ET)	Depth	Felt
4.8	5 km SW of Guánica, Puerto Rico · PAGER green	Sep 18, 9:19 AM 28 d ago	7 km	86 reports
4.2	2 km SW of Río Lajas, Puerto Rico · PAGER green	Apr 12, 10:06 PM 187 d ago	115 km	81 reports
3.9	2 km SW of Indios, Puerto Rico	Jul 8, 4:07 PM 100 d ago	15 km	9 reports
3.9	19 km NW of Rincón, Puerto Rico	Oct 3, 6:35 AM 13 d ago	6 km	11 reports
3.7	15 km SSE of Guánica, Puerto Rico · PAGER green	Oct 6, 10:01 PM 375 d ago	11 km	2 reports
3.7	7 km SE of La Parguera, Puerto Rico	Apr 27, 2:31 AM 173 d ago	7 km	2 reports
3.6	16 km SSE of Guánica, Puerto Rico	Oct 7, 1:19 AM 375 d ago	7 km	2 reports
3.6	45 km WSW of Stella, Puerto Rico	Aug 13, 3:16 PM 64 d ago	104 km	–
3.6	4 km WSW of Guánica, Puerto Rico	Aug 7, 12:48 AM 71 d ago	10 km	12 reports
3.5	3 km NW of Guayanilla, Puerto Rico	Mar 12, 12:34 AM 219 d ago	13 km	8 reports
3.5	22 km N of Brenas, Puerto Rico	Dec 22, 2:56 PM 298 d ago	70 km	–
3.5	5 km WNW of Mayagüez, Puerto Rico	May 1, 11:57 AM 168 d ago	25 km	–

FAQ

About this earthquake

How strong was the 4 km SSW of Indios, Puerto Rico earthquake?

Magnitude 3.5 (md), minor – felt by people near the epicenter. Depth 12 km. Strongest estimated shaking: intensity 3.4 on the Modified Mercalli scale.

Was it felt?

No felt reports have been submitted to the USGS so far.

Were there aftershocks?

1 earthquakes within 100 km in the following two weeks are in our records, the strongest M3.6.

Earthquakes

Source: U.S. Geological Survey (USGS) earthquake catalog, real-time feeds and FDSN event service; magnitudes and locations are revised by seismologists for hours after an event. Times are Eastern (ET) unless marked UTC. Not an alert service: for warnings follow local authorities and tsunami centers.