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Minor earthquake 2.85 mag, 23 km NW of San Antonio, Puerto Rico

Earthquake location 18.6158S, -67.2838WA minor earthquake magnitude 2.85 (ml/mb) has struck on Wednesday, 23 kilometers (14 miles) from San Antonio in Puerto Rico. Exact location of event, depth 85 km, -67.2838° West, 18.6158° North. Date and time of earthquake in UTC/GMT: 11/12/19 / 2019-12-11 11:54:27 / December 11, 2019 @ 11:54 am. Event ids that are associated to the earthquake: pr2019345006. Id of event: pr2019345006. The epicenter was at a depth of 85 km (53 miles). The 2.85-magnitude earthquake has occurred at 07:54:27 / 7:54 am (local time epicenter).

Epicenter of the event was 49 km (30 miles) from Mayagüez (c. 78 600 pop), 62 km (39 miles) from Arecibo (c. 49 300 pop), 25 km (16 miles) from Aguadilla (c. 16 100 pop), 30 km (19 miles) from Isabela (c. 12 500 pop), 65 km (40 miles) from San Germán (c. 12 100 pop). Nearest cities/city/towns to hypocenter/epicentrum was Utuado, Sabana Grande, Lajas (min 5000 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

Every year there are an estimated 1,300,000 minor earthquakes in the world. In the past 24 hours, there have been four, in the last 10 days thirty-three, in the past 30 days ninety-four and in the last 365 days seven hundred and seventy earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage.

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 23 km NW of San Antonio, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.85 mb The magnitude for the event.
Longitude -67.2838° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.6158° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 85 km Depth of the event in kilometers.
Place 23km NW 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 2019-12-11 11:54:27 Time when the event occurred. UTC/GMT
Updated 2019-12-11 16:50:52 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 125 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 4 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.2276 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.25 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 313 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 pr2019345006 Id of event.
Event Code 2019345006 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2019345006, A comma-separated list of event ids that are associated to an event.

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