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Light earthquake: M4.6 quake has struck near San Antonio in Puerto Rico


Earthquake location 19.0781S, -67.2084WA light earthquake magnitude 4.6 (ml/mb) strikes 65 kilometers (40 miles) from San Antonio in Puerto Rico on Monday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us60005mjj. Ids that are associated to the event: pt19267003, us60005mjj. The temblor was reported at 23:51:07 / 11:51 pm (local time epicenter). The earthquake occurred at a depth of 10 km (6 miles). Global date and time of event UTC/GMT: 24/09/19 / 2019-09-24 03:51:07 / September 24, 2019 @ 3:51 am. Exact location of earthquake, -67.2084° West, 19.0781° North, depth 10 km.

Event epicenter was 98 km (61 miles) from Mayagüez (c. 78 600 pop), 85 km (53 miles) from Arecibo (c. 49 300 pop), 73 km (45 miles) from Aguadilla (c. 16 100 pop), 67 km (42 miles) from Isabela (c. 12 500 pop), 86 km (53 miles) from San Sebastián (c. 11 600 pop), 94 km (58 miles) from Lares (c. 7 200 pop), 89 km (55 miles) from Añasco (c. 6 100 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Mayagüez, Las Marías, Lares (min 5000 pop).

In the past 24 hours, there have been eight, in the last 10 days thirteen, in the past 30 days twenty-nine and in the last 365 days three hundred and seventy-five earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world.

Did you feel the quake?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: 65 km N of San Antonio, Puerto Rico.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -67.2084° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.0781° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 65km N 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 2019-09-24 03:51:07 Time when the event occurred. UTC/GMT
Updated 2019-09-24 04:04:21 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 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 326 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 ,pt,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.845 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.81 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 101 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us60005mjj Id of event.
Event Code 60005mjj An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pt19267003,us60005mjj, A comma-separated list of event ids that are associated to an event.

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