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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.3 mag, 31 km N of Yigo Village, Guam

Earthquake location 13.8161S, 144.9021WA light earthquake with magnitude 4.3 (ml/mb) was detected on Friday, 31 kilometers (19 miles) from Yigo Village in Guam. Unique identifier: us20009vzt. Ids that are associated to the event: us20009vzt. Date and time of earthquake in UTC/GMT: 07/07/17 / 2017-07-07 00:24:34 / July 7, 2017 @ 12:24 am. The earthquake occurred at a depth of 107.59 km (67 miles). Exact location of event, depth 107.59 km, 144.9021° East, 13.8161° North. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 10:24:34 / 10:24 am (local time epicenter).

Epicenter of the event was 34 km (21 miles) from Dededo Village (c. 44 900 pop), 31 km (19 miles) from Yigo Village (c. 20 500 pop), 39 km (24 miles) from Tamuning-Tumon-Harmon Village (c. 19 700 pop), 42 km (26 miles) from Mangilao Village (c. 15 200 pop), 40 km (25 miles) from Barrigada Village (c. 8 900 pop), 54 km (33 miles) from Santa Rita Village (c. 7 500 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Merizo Village, Umatac Village, Inarajan Village. Nearby country/countries that might be effected, Guam (c. 159 000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days three and in the last 365 days thirty-three earthquakes of magnitude 3.0 or greater that have been detected in the same area.

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: 31 km N of Yigo Village, Guam. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 144.9021° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 13.8161° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 107.59 km Depth of the event in kilometers.
Place 31km N of Yigo Village, Guam Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-07-07 00:24:34 Time when the event occurred. UTC/GMT
Updated 2017-07-14 04:06:21 Time when the event was most recently updated. UTC/GMT
Timezone offset 600 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 284 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 ,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 0.227 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.05 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 79 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 us20009vzt Id of event.
Event Code 20009vzt An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20009vzt, A comma-separated list of event ids that are associated to an event.

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