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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.2 quake has struck near Amberley in New Zealand



Earthquake location -43.092S, 173.1883WA light earthquake with magnitude 4.2 (ml/mb) was reported 37 kilometers (23 miles) from Amberley in New Zealand on Thursday. Exact location of earthquake, longitude 173.1883 East, latitude -43.092 South, depth = 10 km. Event id: us100087sm. Ids that are associated to the earthquake: us100087sm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 08/03/17 / 2017-03-08 20:51:23 / March 8, 2017 @ 8:51 pm. The 4.2-magnitude earthquake has occurred at 08:51:23 / 8:51 am (local time epicenter). The earthquake occurred at a depth of 10 km (6 miles).

Event epicenter was 67 km (41 miles) from Christchurch (c. 363 900 pop), 55 km (34 miles) from Kaiapoi (c. 10 200 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Christchurch, Kaiapoi. Close country/countries that might be effected, New Zealand (c. 4 252 000 pop).

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

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 37 km ENE of Amberley, New Zealand.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 173.1883° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -43.092° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 37km ENE of Amberley, 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 2017-03-08 20:51:23 Time when the event occurred. UTC/GMT
Updated 2017-03-22 22:50:38 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 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 0.167 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 175 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 us100087sm Id of event.
Event Code 100087sm An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100087sm, A comma-separated list of event ids that are associated to an event.

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