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Minor earthquake, 2.81 mag strikes near Isabela in Puerto Rico


Earthquake location 19.0823S, -67.0655WA minor earthquake magnitude 2.81 (ml/mb) has struck on Wednesday, 64 kilometers (40 miles) from Isabela in Puerto Rico. The epicenter was at a depth of 49 km (30 miles). All ids that are associated to the event: pr2019282010. Unique identifier: pr2019282010. Exact location of earthquake, -67.0655° West, 19.0823° North, depth 49 km. The 2.81-magnitude earthquake has occurred at 07:28:10 / 7:28 am (local time epicenter). Exact time and date of event in UTC/GMT: 09/10/19 / 2019-10-09 11:28:10 / October 9, 2019 @ 11:28 am.

Epicenter of the event was 77 km (48 miles) from Arecibo (c. 49 300 pop), 73 km (46 miles) from Aguadilla (c. 16 100 pop), 65 km (40 miles) from Isabela (c. 12 500 pop), 71 km (44 miles) from Hatillo (c. 5 600 pop), 69 km (43 miles) from Quebradillas (c. 5 600 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Arecibo, Moca, Aguadilla. Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop).

In the past 24 hours, there have been sixteen, in the last 10 days one hundred and eighteen, in the past 30 days three hundred and eleven and in the last 365 days five hundred and sixty-three earthquakes of magnitude 3.0 or greater that was reported nearby. 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.

Did you feel it?

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 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: 64 km N of Isabela, Puerto Rico.

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More information

Parameter Value Description
Magnitude 2.81 mb The magnitude for the event.
Longitude -67.0655° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.0823° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 49 km Depth of the event in kilometers.
Place 64km 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 2019-10-09 11:28:10 Time when the event occurred. UTC/GMT
Updated 2019-10-09 17:09:56 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 121 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 8 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.6165 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.66 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 233 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 pr2019282010 Id of event.
Event Code 2019282010 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2019282010, A comma-separated list of event ids that are associated to an event.

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