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Minor earthquake 2.82 mag, 42 km NNW of San Antonio, Puerto Rico


Earthquake location 18.8445S, -67.2566WA minor earthquake magnitude 2.82 (ml/mb) has occurred on Tuesday, 42 kilometers (26 miles) from San Antonio in Puerto Rico. The temblor was reported at 18:06:45 / 6:06 pm (local time epicenter). The epicenter of the earthquake was roughly 23 km (14 miles) below the earth’s surface. Global time and date of event 09/10/18 / 2018-10-09 22:06:45 / October 9, 2018 @ 10:06 pm UTC/GMT. Id of earthquake: pr2018282014. Event ids that are associated: pr2018282014. Exact location of event, longitude -67.2566 West, latitude 18.8445 North, depth = 23 km.

Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Epicenter of the event was 73 km (45 miles) from Mayagüez (c. 78 600 pop), 70 km (44 miles) from Arecibo (c. 49 300 pop), 48 km (30 miles) from Aguadilla (c. 16 100 pop), 45 km (28 miles) from Isabela (c. 12 500 pop), 63 km (39 miles) from San Sebastián (c. 11 600 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Lares, Mayagüez, Las Marías.

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. In the past 24 hours, there have been four, in the last 10 days ten, in the past 30 days thirty-nine and in the last 365 days three hundred and fourty-seven earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 1,300,000 minor quakes in the world.

Did you feel it?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 42 km NNW of San Antonio, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.82 mb The magnitude for the event.
Longitude -67.2566° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8445° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 23 km Depth of the event in kilometers.
Place 42km 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 2018-10-09 22:06:45 Time when the event occurred. UTC/GMT
Updated 2018-10-10 00:43:48 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 122 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 7 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.4041 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 311 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 pr2018282014 Id of event.
Event Code 2018282014 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018282014, A comma-separated list of event ids that are associated to an event.

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