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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag strikes near L’Esperance Rock in New Zealand



Earthquake location -30.7269S, -177.8368WA light earthquake with magnitude 4.2 (ml/mb) was detected on Monday, 128 km NE of L’Esperance Rock, New Zealand (80 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude -177.8368 West, latitude -30.7269 South, depth = 23.85 km. The 4.2-magnitude earthquake was detected at 12:21:23 / 12:21 pm (local time epicenter). Date and time of earthquake in UTC/GMT: 18/07/17 / 2017-07-18 00:21:23 / July 18, 2017 @ 12:21 am. The earthquake was roughly at a depth of 23.85 km (15 miles). Unique identifier: us20009z4g. Ids that are associated to the event: us20009z4g.

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days thirteen and in the last 365 days sixty-three earthquakes of magnitude 3.0 or greater that was reported nearby. 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.

Did you feel anything?

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: 128 km NE of L’Esperance Rock, New Zealand.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -177.8368° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -30.7269° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 23.85 km Depth of the event in kilometers.
Place 128km NE of L'Esperance Rock, 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 2017-07-18 00:21:23 Time when the event occurred. UTC/GMT
Updated 2017-07-31 03:41:54 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 1.479 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.44 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 183 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 us20009z4g Id of event.
Event Code 20009z4g An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20009z4g, A comma-separated list of event ids that are associated to an event.

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