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Minor earthquake, 2.94 mag was detected near San Antonio in Puerto Rico



Earthquake location 18.7688S, -67.2465WA minor earthquake magnitude 2.94 (ml/mb) strikes 34 kilometers (21 miles) from San Antonio in Puerto Rico on Wednesday. The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. Unique identifier: pr2017130011. Ids that are associated to the event: pr2017130011. Global date and time of event UTC/GMT: 10/05/17 / 2017-05-10 07:20:32 / May 10, 2017 @ 7:20 am. The 2.94-magnitude earthquake has occurred at 03:20:32 / 3:20 am (local time epicenter). Exact location of earthquake, -67.2465° West, 18.7688° North, depth 10 km.

Epicenter of the event was 64 km (40 miles) from Mayagüez (c. 78 600 pop), 65 km (40 miles) from Arecibo (c. 49 300 pop), 39 km (24 miles) from Aguadilla (c. 16 100 pop), 38 km (24 miles) from Isabela (c. 12 500 pop), 71 km (44 miles) from Hormigueros (c. 11 900 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Puerto Real, Cabo Rojo, Maricao (min 5000 pop).

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

Did you feel it?

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: 34 km NNW of San Antonio, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.94 mb The magnitude for the event.
Longitude -67.2465° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.7688° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 34km 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 2017-05-10 07:20:32 Time when the event occurred. UTC/GMT
Updated 2017-05-12 21:43:00 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 133 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 19 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.3303 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.15 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 252 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 pr2017130011 Id of event.
Event Code 2017130011 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2017130011, A comma-separated list of event ids that are associated to an event.

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