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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.22 mag has occurred near Isabela in Puerto Rico

Posted by admin on September 30, 2025 0 Comments

Earthquake location 19.6188S, -66.9935WA light earthquake with magnitude 4.22 (ml/mb) was detected on Tuesday, 123 km N of Isabela, Puerto Rico (76 miles). Global date and time of event UTC/GMT: 30/09/25 / 2025-09-30 10:07:35 / September 30, 2025 @ 10:07 am. Exact location of earthquake, longitude -66.9935 West, latitude 19.6188 North, depth = 39 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: pr2025273000. Ids that are associated to the event: us6000rdqx, pr2025273000. The epicenter of the earthquake was roughly 39 km (24 miles) below the earth’s surface. The temblor was reported at 10:07:35 / 10:07 am (local time epicenter).

In the past 24 hours, there have been two, in the last 10 days eight, in the past 30 days twenty-one and in the last 365 days three hundred and eleven earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 13,000 light earthquakes in the world each year. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Questions or comments?

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 123 km N of Isabela, Puerto Rico.

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More information

Parameter Value Description
Magnitude 4.22 mb The magnitude for the event.
Longitude -66.9935° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.6188° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 39 km Depth of the event in kilometers.
Place 123 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 2025-09-30 10:07:35 Time when the event occurred. UTC/GMT
Updated 2025-09-30 10:47:07 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 274 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 26 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.1573 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.3 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 212 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 pr2025273000 Id of event.
Event Code 2025273000 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rdqx,pr2025273000, A comma-separated list of event ids that are associated to an event.

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