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Minor earthquake, 3.5 mag was detected near Hatillo in Puerto Rico

Posted by admin on October 31, 2025 0 Comments

A minor earthquake magnitude 3.5 (ml/mb) strikes 46 kilometers (29 miles) from Hatillo in Puerto Rico on Friday. Exact location of earthquake, longitude -66.793 West, latitude 18.909 North, depth = 35 km. The epicenter was at a depth of 35 km (22 miles). Unique identifier: us6000rklc. Ids that are associated to the event: us6000rklc. The 3.5-magnitude earthquake has occurred at 16:52:39 / 4:52 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 31/10/25 / 2025-10-31 16:52:39 / October 31, 2025 @ 4:52 pm.

Closest city/cities/towns to epicentrum/hypocenter was Sabana Seca, Candelaria, Maricao (min 5000 pop). Epicenter of the event was 49 km (31 miles) from Arecibo (c. 49 300 pop), 82 km (51 miles) from Levittown (c. 29 800 pop), 67 km (42 miles) from Vega Baja (c. 29 300 pop), 58 km (36 miles) from Barceloneta (c. 22 300 pop), 83 km (52 miles) from Adjuntas (c. 19 500 pop), 83 km (52 miles) from Candelaria (c. 17 600 pop). Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

In the past 24 hours, there have been two, in the last 10 days five, in the past 30 days twenty-two and in the last 365 days four hundred and eighty-eight earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 130,000 minor quakes in the world each year. Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage.

Did you feel anything?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 46 km N of Hatillo, Puerto Rico.

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Parameter	Value	Description
Magnitude	3.5 mb	The magnitude for the event.
Longitude	-66.793° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	18.909° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	35 km	Depth of the event in kilometers.
Place	46 km N of Hatillo, Puerto Rico	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-10-31 16:52:39	Time when the event occurred. UTC/GMT
Updated	2025-10-31 17:03:19	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt		The total number of felt reports
CDI		The maximum reported intensity for the event.
MMI		The maximum estimated instrumental intensity for the event.
Alert Level		The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status	reviewed	Indicates whether the event has been reviewed by a human.
Tsunami	0	This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG	188	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	us	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,us,	A comma-separated list of network contributors.
Number of Stations Used	15	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.497	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.28 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	191	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	ml	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us6000rklc	Id of event.
Event Code	6000rklc	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000rklc,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.5 mag was detected near Hatillo in Puerto Rico

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