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Minor earthquake: M2.91 quake has struck near Isabela in Puerto Rico



Earthquake location 19.3181S, -66.9885WA minor earthquake magnitude 2.91 (ml/mb) strikes 90 km N of Isabela, Puerto Rico (56 miles) on Thursday. The earthquake was roughly at a depth of 12 km (7 miles). Exact location of event, longitude -66.9885 West, latitude 19.3181 North, depth = 12 km. The temblor was detected at 06:03:55 / 6:03 am (local time epicenter). Global time and date of event 14/12/17 / 2017-12-14 10:03:55 / December 14, 2017 @ 10:03 am UTC/GMT. All ids that are associated to the event: pr2017348002. Unique identifier: pr2017348002.

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

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 90 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 2.91 mb The magnitude for the event.
Longitude -66.9885° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.3181° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 12 km Depth of the event in kilometers.
Place 90km 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 2017-12-14 10:03:55 Time when the event occurred. UTC/GMT
Updated 2017-12-14 11:56:35 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 130 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 6 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.9581 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.28 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 254 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 pr2017348002 Id of event.
Event Code 2017348002 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2017348002, A comma-separated list of event ids that are associated to an event.

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