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Minor earthquake: M3 quake has struck near Hatillo in Puerto Rico



Earthquake location 18.7941S, -66.8408WA minor earthquake with magnitude 3 (ml/mb) was detected on Sunday, 34 kilometers (21 miles) from Hatillo in Puerto Rico. Global time and date of event 08/04/18 / 2018-04-08 05:50:31 / April 8, 2018 @ 5:50 am UTC/GMT. The earthquake was roughly at a depth of 89 km (55 miles). The temblor was detected at 01:50:31 / 1:50 am (local time epicenter). Exact location of event, longitude -66.8408 West, latitude 18.7941 North, depth = 89 km. All ids that are associated to the event: pr2018098009. Unique identifier: pr2018098009.

Country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Hormigueros, Candelaria Arenas, Toa Alta. Event epicenter was 73 km (45 miles) from Mayagüez (c. 78 600 pop), 38 km (24 miles) from Arecibo (c. 49 300 pop), 62 km (38 miles) from Vega Baja (c. 29 300 pop), 50 km (31 miles) from Barceloneta (c. 22 300 pop), 71 km (44 miles) from Adjuntas (c. 19 500 pop).

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 two, in the last 10 days eleven, in the past 30 days twenty-five and in the last 365 days two hundred and ninety-four earthquakes of magnitude 3.0 or greater that was reported nearby.

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 34 km N of Hatillo, Puerto Rico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -66.8408° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.7941° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 89 km Depth of the event in kilometers.
Place 34km N of Hatillo, 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 2018-04-08 05:50:31 Time when the event occurred. UTC/GMT
Updated 2018-04-08 08:36:02 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 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 4 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.424 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.13 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 301 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 pr2018098009 Id of event.
Event Code 2018098009 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018098009, A comma-separated list of event ids that are associated to an event.

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