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Minor earthquake: M2.94 quake has struck near Isabela in Puerto Rico


Earthquake location 19.1701S, -67.0981WA minor earthquake with magnitude 2.94 (ml/mb) was detected on Monday, 74 kilometers (46 miles) from Isabela in Puerto Rico. Global time and date of event 01/05/17 / 2017-05-01 10:31:37 / May 1, 2017 @ 10:31 am UTC/GMT. The temblor was reported at 06:31:37 / 6:31 am (local time epicenter). The earthquake occurred at a depth of 58 km (36 miles). Event ids that are associated to the earthquake: pr2017121001. Id of event: pr2017121001. Exact location of earthquake, longitude -67.0981 West, latitude 19.1701 North, depth = 58 km.

Close country/countries that might be effected, Puerto Rico (c. 3 917 000 pop). Epicenter of the earthquake was 75 km (46 miles) from Isabela (c. 12 500 pop). Nearest cities/city/villages to epicentrum/hypocenter was Isabela (min 5000 pop).

There are an estimated 130,000 minor earthquakes in the world each year. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage. In the past 24 hours, there have been two, in the last 10 days six, in the past 30 days twenty-one and in the last 365 days two hundred and twenty earthquakes of magnitude 3.0 or greater that have been detected nearby.

Questions or comments?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 74 km N of Isabela, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 2.94 mb The magnitude for the event.
Longitude -67.0981° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.1701° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 58 km Depth of the event in kilometers.
Place 74km 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 2017-05-01 10:31:37 Time when the event occurred. UTC/GMT
Updated 2017-05-04 22:53:36 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 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 133 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 15 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.7027 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.83 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 228 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 pr2017121001 Id of event.
Event Code 2017121001 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2017121001, A comma-separated list of event ids that are associated to an event.

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