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Minor earthquake 3 mag, 55 km N of Isabela, Puerto Rico


Earthquake location 18.9955S, -66.975WA minor earthquake with magnitude 3 (ml/mb) was detected on Thursday, 55 kilometers (34 miles) from Isabela in Puerto Rico. Exact time and date of event in UTC/GMT: 18/03/16 / 2016-03-18 01:35:49 / March 18, 2016 @ 1:35 am. The 3-magnitude earthquake was detected at 21:35:49 / 9:35 pm (local time epicenter). The earthquake occurred at a depth of 7 km (4 miles). Exact location of event, depth 7 km, -66.975° West, 18.9955° North. Id of earthquake: pr16078001. Event ids that are associated: pr16078001.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Lares, Rincón, Barceloneta. Nearby country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected). Epicenter of the earthquake was 64 km (40 miles) from Arecibo (c. 49 300 pop), 76 km (47 miles) from Barceloneta (c. 22 300 pop), 66 km (41 miles) from Aguadilla (c. 16 100 pop), 55 km (34 miles) from Isabela (c. 12 500 pop), 73 km (46 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 one, in the last 10 days three, in the past 30 days nineteen and in the last 365 days four hundred and fifty-six earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel the quake?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 55 km N of Isabela, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -66.975° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.9955° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7 km Depth of the event in kilometers.
Place 55km 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 2016-03-18 01:35:49 Time when the event occurred. UTC/GMT
Updated 2016-03-18 04:38:36 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 138 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 9 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.5407858 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.27 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 288 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 pr16078001 Id of event.
Event Code 16078001 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr16078001, A comma-separated list of event ids that are associated to an event.

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