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

Earthquake location 19.131S, -67.6575WA minor earthquake magnitude 3 (ml/mb) has occurred on Saturday, 92 km NW of San Antonio, Puerto Rico (57 miles). Exact location of event, depth 83 km, -67.6575° West, 19.131° North. The temblor was picked up at 18:57:34 / 6:57 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 21/12/19 / 2019-12-21 23:57:34 / December 21, 2019 @ 11:57 pm. The earthquake was roughly at a depth of 83 km (52 miles). Unique identifier: pr2019355036. Ids that are associated to the event: pr2019355036.

In the past 24 hours, there have been eighteen, in the last 10 days ninety-seven, in the past 30 days one hundred and sixty-eight and in the last 365 days nine hundred and fifty-four earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. Each year there are an estimated 130,000 minor 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: 92 km NW of San Antonio, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -67.6575° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.131° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 83 km Depth of the event in kilometers.
Place 92km 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 2019-12-21 23:57:34 Time when the event occurred. UTC/GMT
Updated 2019-12-22 09:02:17 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 138 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 5 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.1132 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.52 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 338 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 pr2019355036 Id of event.
Event Code 2019355036 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2019355036, A comma-separated list of event ids that are associated to an event.

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