Light earthquake, 4.9 mag was detected near Riverton in New Zealand

A light earthquake magnitude 4.9 (ml/mb) has occurred on Tuesday, 163 km WSW of Riverton, New Zealand (101 miles). The earthquake occurred at a depth of 35 km (22 miles). The 4.9-magnitude earthquake was detected at 09:04:33 / 9:04 am (local time epicenter). Global time and date of event 25/03/25 / 2025-03-25 09:04:33 / March 25, 2025 @ 9:04 am UTC/GMT. Exact location of earthquake, 165.9527° East, -46.7295° South, depth 35 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us7000pmgv. Ids that are associated to the event: us7000pmgv.

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

Questions or comments?

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 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: 163 km WSW of Riverton, New Zealand.

New Zealand Riverton

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Parameter	Value	Description
Magnitude	4.9 mb	The magnitude for the event.
Longitude	165.9527° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-46.7295° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	35 km	Depth of the event in kilometers.
Place	163 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	2025-03-25 09:04:33	Time when the event occurred. UTC/GMT
Updated	2025-03-25 10:00:12	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	369	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	38	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.755	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.69 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	110	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	us7000pmgv	Id of event.
Event Code	7000pmgv	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000pmgv,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.9 mag was detected near Riverton in New Zealand

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