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Minor earthquake: M3.07 quake has struck near Isabela in Puerto Rico

Earthquake location 19.0543S, -67.0931WA minor earthquake with magnitude 3.07 (ml/mb) was reported 61 kilometers (38 miles) from Isabela in Puerto Rico on Saturday. The epicenter of the earthquake was roughly 4 km (2 miles) below the earth’s surface. Exact location of event, longitude -67.0931 West, latitude 19.0543 North, depth = 4 km. The temblor was reported at 09:14:32 / 9:14 am (local time epicenter). Exact time and date of earthquake 01/12/18 / 2018-12-01 13:14:32 / December 1, 2018 @ 1:14 pm UTC/GMT. All ids that are associated to the event: pr2018335009. Unique identifier: pr2018335009.

Event epicenter was 76 km (47 miles) from Arecibo (c. 49 300 pop), 70 km (43 miles) from Aguadilla (c. 16 100 pop), 62 km (39 miles) from Isabela (c. 12 500 pop), 69 km (43 miles) from Hatillo (c. 5 600 pop), 67 km (41 miles) from Quebradillas (c. 5 600 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Arecibo, Aguada, Moca. Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

In the past 24 hours, there have been two, in the last 10 days twelve, in the past 30 days twenty-three and in the last 365 days three hundred and nineteen 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. There are an estimated 130,000 minor quakes in the world each year.

Did you feel it?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 61 km N of Isabela, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.07 mb The magnitude for the event.
Longitude -67.0931° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.0543° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 4 km Depth of the event in kilometers.
Place 61km N of Isabela, 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 2018-12-01 13:14:32 Time when the event occurred. UTC/GMT
Updated 2018-12-01 17:51:06 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 145 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 15 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.5871 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.59 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 223 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 pr2018335009 Id of event.
Event Code 2018335009 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018335009, A comma-separated list of event ids that are associated to an event.

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