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Minor earthquake, 3.15 mag has occurred near Isabela in Puerto Rico


Earthquake location 18.7768S, -67.0245WA minor earthquake magnitude 3.15 (ml/mb) has occurred on Monday, 30 kilometers (19 miles) from Isabela in Puerto Rico. The temblor was picked up at 23:45:14 / 11:45 pm (local time epicenter). The epicenter was at a depth of 71 km (44 miles). Global date and time of event UTC/GMT: 08/05/18 / 2018-05-08 03:45:14 / May 8, 2018 @ 3:45 am. Unique identifier: pr2018128000. Ids that are associated to the event: pr2018128000. Exact location of event, longitude -67.0245 West, latitude 18.7768 North, depth = 71 km.

Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Event epicenter was 65 km (40 miles) from Mayagüez (c. 78 600 pop), 47 km (29 miles) from Arecibo (c. 49 300 pop), 77 km (48 miles) from Vega Baja (c. 29 300 pop), 63 km (39 miles) from Barceloneta (c. 22 300 pop), 75 km (47 miles) from Adjuntas (c. 19 500 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Ceiba, Puerto Real, Sabana Grande.

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. In the past 24 hours, there have been one, in the last 10 days fourteen, in the past 30 days twenty-seven and in the last 365 days three hundred and seven earthquakes of magnitude 3.0 or greater that was reported nearby.

Did you feel anything?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage 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: 30 km N of Isabela, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3.15 mb The magnitude for the event.
Longitude -67.0245° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.7768° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 71 km Depth of the event in kilometers.
Place 30km 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 2018-05-08 03:45:14 Time when the event occurred. UTC/GMT
Updated 2018-05-08 07:44:50 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 153 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 14 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.3212 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.23 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 218 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 pr2018128000 Id of event.
Event Code 2018128000 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018128000, A comma-separated list of event ids that are associated to an event.

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