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

Posted by admin on July 13, 2025 0 Comments

Earthquake location -47.3047S, 165.4361WA light earthquake with magnitude 4.5 (ml/mb) was detected on Sunday, 223 km WSW of Riverton, New Zealand (139 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.5-magnitude earthquake has occurred at 18:18:04 / 6:18 pm (local time epicenter). Exact time and date of event in UTC/GMT: 13/07/25 / 2025-07-13 18:18:04 / July 13, 2025 @ 6:18 pm. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. Unique identifier: us7000qcg5. Ids that are associated to the event: us7000qcg5. Exact location of earthquake, 165.4361° East, -47.3047° South, depth 10 km.

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 one, in the last 10 days two, in the past 30 days four and in the last 365 days fifteen earthquakes of magnitude 3.0 or greater that has struck near.

How would you describe the shaking?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 223 km WSW of Riverton, New Zealand.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude 165.4361° East Decimal degrees longitude. Negative values for western longitudes.
Latitude -47.3047° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 223 km WSW of Riverton, 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 2025-07-13 18:18:04 Time when the event occurred. UTC/GMT
Updated 2025-07-13 19:33:19 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 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 34 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.425 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.21 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 103 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 us7000qcg5 Id of event.
Event Code 7000qcg5 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qcg5, A comma-separated list of event ids that are associated to an event.

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