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Minor earthquake, 2.87 mag strikes near Aguadilla in Puerto Rico

Earthquake location 18.8385S, -67.5508WA minor earthquake magnitude 2.87 (ml/mb) strikes 61 kilometers (38 miles) from Aguadilla in Puerto Rico on Wednesday. Exact location of event, depth 54 km, -67.5508° West, 18.8385° North. Date and time of earthquake in UTC/GMT: 31/01/18 / 2018-01-31 14:12:42 / January 31, 2018 @ 2:12 pm. Event id: pr2018031009. Ids that are associated to the earthquake: pr2018031009. The 2.87-magnitude earthquake has occurred at 09:12:42 / 9:12 am (local time epicenter). The earthquake occurred at a depth of 54 km (34 miles) below the earth’s surface.

Nearest cities/city/villages to epicentrum/hypocenter was Quebradillas, Añasco, Moca (min 5000 pop). Close country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected). Epicenter of the earthquake was 62 km (38 miles) from Aguadilla (c. 16 100 pop), 67 km (42 miles) from Isabela (c. 12 500 pop), 75 km (47 miles) from Añasco (c. 6 100 pop), 76 km (47 miles) from Quebradillas (c. 5 600 pop), 68 km (42 miles) from Moca (c. 5 000 pop).

Earthquakes 2.5 to 2.9 are often felt, but only causes minor damage. There are an estimated 1,300,000 minor quakes in the world each year. In the past 24 hours, there have been three, in the last 10 days sixteen, in the past 30 days thirty-three and in the last 365 days three hundred and twenty earthquakes of magnitude 3.0 or greater that have been detected nearby.

How would you describe the shaking?

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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 61 km NW of Aguadilla, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.87 mb The magnitude for the event.
Longitude -67.5508° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8385° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 54 km Depth of the event in kilometers.
Place 61km NW of Aguadilla, 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 2018-01-31 14:12:42 Time when the event occurred. UTC/GMT
Updated 2018-01-31 17:00:51 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 127 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 4 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.9364 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.47 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 329 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 pr2018031009 Id of event.
Event Code 2018031009 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018031009, A comma-separated list of event ids that are associated to an event.

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