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Minor earthquake, 2.93 mag strikes near San Antonio in Puerto Rico

Earthquake location 18.875S, -67.3056WA minor earthquake magnitude 2.93 (ml/mb) strikes 47 kilometers (29 miles) from San Antonio in Puerto Rico on Wednesday. The 2.93-magnitude earthquake has occurred at 05:53:34 / 5:53 am (local time epicenter). Exact location of earthquake, longitude -67.3056 West, latitude 18.875 North, depth = 61 km. The epicenter of the earthquake was roughly 61 km (38 miles) below the earth’s surface. Global time and date of event 31/10/18 / 2018-10-31 09:53:34 / October 31, 2018 @ 9:53 am UTC/GMT. Event id: pr2018304003. Ids that are associated to the earthquake: pr2018304003.

Nearest cities/city/towns to hypocenter/epicentrum was Lares, Mayagüez, Las Marías (min 5000 pop). Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Event epicenter was 77 km (48 miles) from Mayagüez (c. 78 600 pop), 77 km (48 miles) from Arecibo (c. 49 300 pop), 52 km (32 miles) from Aguadilla (c. 16 100 pop), 51 km (32 miles) from Isabela (c. 12 500 pop), 68 km (43 miles) from San Sebastián (c. 11 600 pop).

Every year there are an estimated 130,000 minor earthquakes in the world. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days five, in the past 30 days twenty-seven and in the last 365 days three hundred and sixty-seven earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city 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: 47 km NNW of San Antonio, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.93 mb The magnitude for the event.
Longitude -67.3056° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.875° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 61 km Depth of the event in kilometers.
Place 47km 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 2018-10-31 09:53:34 Time when the event occurred. UTC/GMT
Updated 2018-10-31 11:49:22 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 132 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 0.733 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.2 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 328 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 pr2018304003 Id of event.
Event Code 2018304003 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018304003, A comma-separated list of event ids that are associated to an event.

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