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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.4 mag, 120 km ENE of Raoul Island, New Zealand



Earthquake location -28.9418S, -176.7159WA light earthquake with magnitude 4.4 (ml/mb) was detected on Sunday, 120 km ENE of Raoul Island, New Zealand (75 miles). Exact location of event, longitude -176.7159 West, latitude -28.9418 South, depth = 10 km. The temblor was picked up at 14:09:18 / 2:09 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 31/07/17 / 2017-07-31 02:09:18 / July 31, 2017 @ 2:09 am. Unique identifier: us2000a4gi. Ids that are associated to the event: us2000a4gi.

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 two and in the last 365 days twenty-seven 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.

Questions or comments?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 120 km ENE of Raoul Island, New Zealand.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -176.7159° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -28.9418° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 120km ENE of Raoul Island, New Zealand Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-07-31 02:09:18 Time when the event occurred. UTC/GMT
Updated 2017-08-10 00:19:53 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 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 298 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 1.103 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.84 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 185 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 us2000a4gi Id of event.
Event Code 2000a4gi An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000a4gi, A comma-separated list of event ids that are associated to an event.

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