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Light earthquake: M4.5 quake has struck near Amberley in New Zealand


Earthquake location -43.0427S, 173.1841WA light earthquake magnitude 4.5 (ml/mb) strikes 39 kilometers (24 miles) from Amberley in New Zealand on Wednesday. All ids that are associated to the event: us100085tp. Unique identifier: us100085tp. Global time and date of event 28/02/17 / 2017-02-28 21:19:42 / February 28, 2017 @ 9:19 pm UTC/GMT. The 4.5-magnitude earthquake was detected at 09:19:42 / 9:19 am (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 13.43 km (8 miles) below the earth’s surface. Exact location of event, longitude 173.1841 East, latitude -43.0427 South, depth = 13.43 km.

Epicenter of the earthquake was 70 km (44 miles) from Christchurch (c. 363 900 pop), 58 km (36 miles) from Kaiapoi (c. 10 200 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Christchurch, Kaiapoi. Country/countries that might be effected, New Zealand (c. 4 252 000 pop).

In the past 24 hours, there have been one, in the last 10 days two, in the past 30 days five and in the last 365 days one hundred and twenty-six 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. There are an estimated 13,000 light earthquakes in the world each year.

Did you feel it?

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. 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: 39 km ENE of Amberley, New Zealand.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 173.1841° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -43.0427° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 13.43 km Depth of the event in kilometers.
Place 39km 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 2017-02-28 21:19:42 Time when the event occurred. UTC/GMT
Updated 2017-02-28 22:22:56 Time when the event was most recently updated. UTC/GMT
Timezone offset 720 Timezone offset from UTC in minutes at the event epicenter.
Felt 2 The total number of felt reports
CDI 3.8 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 312 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 0.132 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.7 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 134 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mwr The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us100085tp Id of event.
Event Code 100085tp An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us100085tp, A comma-separated list of event ids that are associated to an event.

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