Minor earthquake, 3.58 mag was detected near Isabela in Puerto Rico

A minor earthquake magnitude 3.58 (ml/mb) has struck on Friday, 143 km N of Isabela, Puerto Rico (89 miles). Id of earthquake: pr2025269000. Event ids that are associated: us6000rczd, pr2025269000. The temblor was picked up at 01:26:21 / 1:26 am (local time epicenter). Date and time of earthquake in UTC/GMT: 26/09/25 / 2025-09-26 01:26:21 / September 26, 2025 @ 1:26 am. Exact location of earthquake, longitude -66.9153 West, latitude 19.7955 North, depth = 44 km. The epicenter was at a depth of 44 km (27 miles).

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

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What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 143 km N of Isabela, Puerto Rico.

Isabela Puerto Rico

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Parameter	Value	Description
Magnitude	3.58 mb	The magnitude for the event.
Longitude	-66.9153° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	19.7955° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	44 km	Depth of the event in kilometers.
Place	143 km N of Isabela, 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	2025-09-26 01:26:21	Time when the event occurred. UTC/GMT
Updated	2025-09-26 02:00:19	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	197	A number describing how significant the event is. Larger numbers indicate a more significant event.
Network	pr	The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources	,us,pr,	A comma-separated list of network contributors.
Number of Stations Used	16	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.3424	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.5 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	220	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	md	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	pr2025269000	Id of event.
Event Code	2025269000	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000rczd,pr2025269000,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake, 3.58 mag was detected near Isabela in Puerto Rico

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