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Light earthquake, 4.2 mag has occurred near Culebra in Puerto Rico

Posted by admin on October 1, 2018 0 Comments

Earthquake location 18.9394S, -65.2759WA light earthquake magnitude 4.2 (ml/mb) has struck on Sunday, 70 kilometers (43 miles) from Culebra in Puerto Rico. The temblor was reported at 19:29:41 / 7:29 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 30/09/18 / 2018-09-30 23:29:41 / September 30, 2018 @ 11:29 pm. Exact location of earthquake, -65.2759° West, 18.9394° North, depth 35 km. Event id: us1000h4t6. Ids that are associated to the earthquake: pt18273001, us1000h4t6. The epicenter of the earthquake was roughly 35 km (22 miles) below the earth’s surface.

Closest city/cities/towns to epicentrum/hypocenter was Santa Barbara, Canovanas, Tortola (min 5000 pop). The epicenter was 79 km (49 miles) from Fajardo (c. 34 100 pop), 90 km (56 miles) from Tortola (c. 23 900 pop), 76 km (47 miles) from Charlotte Amalie (c. 20 000 pop), 85 km (53 miles) from Río Grande (c. 13 500 pop), 90 km (56 miles) from Isabel Segunda (c. 9 300 pop), 89 km (56 miles) from Road Town (c. 8 400 pop). Nearby country/countries that might be effected, Puerto Rico (c. 3 917 000 pop), British Virgin Islands (c. 22 000 pop), U.S. Virgin Islands (c. 109 000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes in the world each year. In the past 24 hours, there have been five, in the last 10 days fifteen, in the past 30 days thirty-three and in the last 365 days four hundred and fourty earthquakes of magnitude 3.0 or greater that have been detected nearby.

Did you feel the quake?

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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 70 km N of Culebra, Puerto Rico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -65.2759° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.9394° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 70km 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 2018-09-30 23:29:41 Time when the event occurred. UTC/GMT
Updated 2018-09-30 23:53:06 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 1 The total number of felt reports
CDI 2.7 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 272 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,pt,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.961 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.99 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 145 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us1000h4t6 Id of event.
Event Code 1000h4t6 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pt18273001,us1000h4t6, A comma-separated list of event ids that are associated to an event.

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