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Minor earthquake, 3.09 mag has occurred near Culebra in Puerto Rico

Posted by admin on July 5, 2018 0 Comments

Earthquake location 18.8185S, -65.2723WA minor earthquake magnitude 3.09 (ml/mb) has struck on Thursday, 57 kilometers (35 miles) from Culebra in Puerto Rico. The 3.09-magnitude earthquake was detected at 02:08:46 / 2:08 am (local time epicenter). Exact location of earthquake, -65.2723° West, 18.8185° North, depth 132 km. Event id: pr2018186003. Ids that are associated to the earthquake: pr2018186003. Exact time and date of event in UTC/GMT: 05/07/18 / 2018-07-05 06:08:46 / July 5, 2018 @ 6:08 am. The earthquake occurred at a depth of 132 km (82 miles).

Nearest cities/city/towns to hypocenter/epicentrum was San Isidro, Loíza, Isabel Segunda (min 5000 pop). Event epicenter was 68 km (42 miles) from Fajardo (c. 34 100 pop), 64 km (40 miles) from Charlotte Amalie (c. 20 000 pop), 76 km (48 miles) from Río Grande (c. 13 500 pop), 77 km (48 miles) from Isabel Segunda (c. 9 300 pop), 68 km (42 miles) from Luquillo (c. 8 300 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop), U.S. Virgin Islands (c. 109 000 pop).

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 twenty-three, in the past 30 days thirty-eight and in the last 365 days three hundred and ninety earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 2.5 to 3.2 are often felt, but only causes minor damage.

Questions or comments?

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: 57 km N of Culebra, Puerto Rico.

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More information

Parameter Value Description
Magnitude 3.09 mb The magnitude for the event.
Longitude -65.2723° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.8185° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 132 km Depth of the event in kilometers.
Place 57km N of Culebra, 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 2018-07-05 06:08:46 Time when the event occurred. UTC/GMT
Updated 2018-07-05 09:37:37 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 147 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 0.8888 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.92 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 328 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 pr2018186003 Id of event.
Event Code 2018186003 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2018186003, A comma-separated list of event ids that are associated to an event.

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