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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag strikes near San Antonio in Puerto Rico

Posted by admin on August 22, 2025 0 Comments

Earthquake location 18.8243S, -67.2471WA light earthquake magnitude 4.3 (ml/mb) has occurred on Friday, 39 kilometers (24 miles) from San Antonio in Puerto Rico. Event ids that are associated to the earthquake: us6000r36i, pr2025234001. Id of event: pr2025234001. The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. Exact location of event, depth 10 km, -67.2471° West, 18.8243° North. The 4.3-magnitude earthquake was detected at 16:28:42 / 4:28 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 22/08/25 / 2025-08-22 16:28:42 / August 22, 2025 @ 4:28 pm.

Nearest cities/city/villages to epicentrum/hypocenter was Adjuntas, Adjuntas, Manatí (min 5000 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). The epicenter was 70 km (44 miles) from Mayagüez (c. 78 600 pop), 68 km (42 miles) from Arecibo (c. 49 300 pop), 85 km (53 miles) from Barceloneta (c. 22 300 pop), 92 km (57 miles) from Adjuntas (c. 19 500 pop), 91 km (57 miles) from Manatí (c. 16 100 pop), 45 km (28 miles) from Aguadilla (c. 16 100 pop).

There are an estimated 13,000 light quakes in the world each year. In the past 24 hours, there have been two, in the last 10 days seven, in the past 30 days thirty-six and in the last 365 days five hundred and ninety-six earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

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: 39 km NNW of San Antonio, Puerto Rico.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -67.2471° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8243° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 39 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 2025-08-22 16:28:42 Time when the event occurred. UTC/GMT
Updated 2025-08-22 17:21:37 Time when the event was most recently updated. UTC/GMT
Timezone offset Timezone offset from UTC in minutes at the event epicenter.
Felt 24 The total number of felt reports
CDI 4.1 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 294 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 27 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.3818 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.21 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 186 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 pr2025234001 Id of event.
Event Code 2025234001 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000r36i,pr2025234001, A comma-separated list of event ids that are associated to an event.

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