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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.1 quake has struck near Havelu in Tonga

Posted by admin on May 26, 2016 0 Comments

Earthquake location -20.7289S, -176.754WA light earthquake with magnitude 4.1 (ml/mb) was reported 166 km WNW of Havelu, Tonga (103 miles) on Wednesday. Event id: us10005e2t. Ids that are associated to the earthquake: us10005e2t. Exact time and date of earthquake 27/04/16 / 2016-04-27 20:11:58 / April 27, 2016 @ 8:11 pm UTC/GMT. Exact location of event, longitude -176.754 West, latitude -20.7289 South, depth = 296.07 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.1-magnitude earthquake has occurred at 08:11:58 / 8:11 am (local time epicenter). The epicenter of the earthquake was roughly 296.07 km (184 miles) below the earth’s surface.

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days eight and in the last 365 days twenty-five earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light quakes in the world.

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, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 166 km WNW of Havelu, Tonga. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -176.754° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -20.7289° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 296.07 km Depth of the event in kilometers.
Place 166km WNW of Havelu, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-04-27 20:11:58 Time when the event occurred. UTC/GMT
Updated 2016-05-26 16:35:46 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 259 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 5.734 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.67 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 139 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 us10005e2t Id of event.
Event Code 10005e2t An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10005e2t, A comma-separated list of event ids that are associated to an event.

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