Minor earthquake: M3.45 quake has struck near San Antonio in Puerto Rico

A minor earthquake magnitude 3.45 (ml/mb) has occurred on Saturday, 90 km NNW of San Antonio, Puerto Rico (56 miles). Id of earthquake: pr2025116004. Event ids that are associated: pr2025116004. Global date and time of event UTC/GMT: 26/04/25 / 2025-04-26 16:48:17 / April 26, 2025 @ 4:48 pm. The epicenter of the earthquake was roughly 90 km (56 miles) below the earth’s surface. Exact location, longitude -67.4836° West, latitude 19.2256° North, depth = 90 km. The temblor was reported at 16:48:17 / 4:48 pm (local time epicenter).

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

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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: 90 km NNW of San Antonio, Puerto Rico.

Puerto Rico San Antonio

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Parameter	Value	Description
Magnitude	3.45 mb	The magnitude for the event.
Longitude	-67.4836° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	19.2256° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	90 km	Depth of the event in kilometers.
Place	90 km NNW of San Antonio, 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	2025-04-26 16:48:17	Time when the event occurred. UTC/GMT
Updated	2025-04-26 18:07:03	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	183	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	,pr,	A comma-separated list of network contributors.
Number of Stations Used	10	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.8446	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.24 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	233	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	pr2025116004	Id of event.
Event Code	2025116004	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,pr2025116004,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake: M3.45 quake has struck near San Antonio in Puerto Rico

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