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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.2 quake has struck near Alo in Wallis and Futuna

Earthquake location -16.6746S, -177.6311WA light earthquake magnitude 4.2 (ml/mb) strikes 266 km S of Alo, Wallis and Futuna (165 miles) on Friday. The 4.2-magnitude earthquake was detected at 04:10:14 / 4:10 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: us6000c03r. Unique identifier: us6000c03r. Exact location of earthquake, -177.6311° West, -16.6746° South, depth 375.71 km. The earthquake occurred at a depth of 375.71 km (233 miles). Exact time and date of earthquake 18/09/20 / 2020-09-18 04:10:14 / September 18, 2020 @ 4:10 am UTC/GMT.

In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days four and in the last 365 days twenty-one earthquakes of magnitude 3.0 or greater that has occurred nearby. 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.

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. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 266 km S of Alo, Wallis and Futuna. 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 -177.6311° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -16.6746° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 375.71 km Depth of the event in kilometers.
Place 266 km S of Alo, Wallis and Futuna Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-09-18 04:10:14 Time when the event occurred. UTC/GMT
Updated 2020-09-24 01:39:09 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 6.277 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.91 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 108 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 us6000c03r Id of event.
Event Code 6000c03r An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000c03r, A comma-separated list of event ids that are associated to an event.

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