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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag has occurred near Yigo Village in Guam

Earthquake location 13.7673S, 145.0845WA light earthquake magnitude 4.2 (ml/mb) strikes 33 kilometers (21 miles) from Yigo Village in Guam on Thursday. The earthquake occurred at a depth of 119.76 km (74 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global time and date of event 30/07/20 / 2020-07-30 00:55:02 / July 30, 2020 @ 12:55 am UTC/GMT. Unique identifier: us6000b9pv. Ids that are associated to the event: us6000b9pv. The 4.2-magnitude earthquake has occurred at 00:55:02 / 12:55 am (local time epicenter). Exact location of earthquake, 145.0845° East, 13.7673° North, depth 119.76 km.

Country/countries that might be effected, Guam (c. 159 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Merizo Village, Umatac Village, Inarajan Village (min 5000 pop). Earthquake epicenter was 38 km (24 miles) from Dededo Village (c. 44 900 pop), 33 km (21 miles) from Yigo Village (c. 20 500 pop), 45 km (28 miles) from Tamuning-Tumon-Harmon Village (c. 19 700 pop), 47 km (29 miles) from Mangilao Village (c. 15 200 pop), 45 km (28 miles) from Barrigada Village (c. 8 900 pop), 61 km (38 miles) from Santa Rita Village (c. 7 500 pop).

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

How would you describe the shaking?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 33 km NE of Yigo Village, Guam.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 145.0845° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 13.7673° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 119.76 km Depth of the event in kilometers.
Place 33 km NE 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 2020-07-30 00:55:02 Time when the event occurred. UTC/GMT
Updated 2020-08-21 22:45:17 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 271 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 0.274 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.71 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 126 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 us6000b9pv Id of event.
Event Code 6000b9pv An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000b9pv, A comma-separated list of event ids that are associated to an event.

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