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Light earthquake: M4.71 quake has struck near Kualapu’u in Hawaii



Earthquake location 21.7531667S, -156.8668333WA light earthquake with magnitude 4.71 (ml/mb) was detected on Thursday, 58 kilometers (36 miles) from Kualapu’u in Hawaii. Unique identifier: hv61636051. Ids that are associated to the event: pt17068051, us100087x8, hv61636051. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, -156.8668333° West, 21.7531667° North, depth 31.966 km. The epicenter of the earthquake was roughly 31.966 km (20 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 09/03/17 / 2017-03-09 13:03:39 / March 9, 2017 @ 1:03 pm. The 4.71-magnitude earthquake was detected at 03:03:39 / 3:03 am (local time epicenter).

Nearby country/countries that might be effected, United States (c. 310 233 000 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Lahaina, Waimānalo, Waihee-Waiehu. Epicenter of the event was 98 km (61 miles) from Kailua (c. 38 600 pop), 100 km (62 miles) from Lahaina (c. 11 700 pop), 98 km (61 miles) from Kaneohe Station (c. 9 500 pop), 99 km (62 miles) from Waihee-Waiehu (c. 8 800 pop), 89 km (56 miles) from Napili-Honokowai (c. 7 300 pop), 100 km (62 miles) from Waimānalo (c. 5 500 pop).

Each year there are an estimated 13,000 light quakes in the world. In the past 24 hours, there have been three, in the last 10 days three, in the past 30 days three and in the last 365 days seven 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.

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. 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: 58 km NNE of Kualapu’u, Hawaii.

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More information

Parameter Value Description
Magnitude 4.71 mb The magnitude for the event.
Longitude -156.8668333° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 21.7531667° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 31.966 km Depth of the event in kilometers.
Place 58km NNE of Kualapu'u, Hawaii Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-03-09 13:03:39 Time when the event occurred. UTC/GMT
Updated 2017-03-10 00:13:35 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 Timezone offset from UTC in minutes at the event epicenter.
Felt 529 The total number of felt reports
CDI 4.1 The maximum reported intensity for the event.
MMI 3.84 The maximum estimated instrumental intensity for the event.
Alert Level green 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 558 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network hv The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,pt,us,hv, A comma-separated list of network contributors.
Number of Stations Used 30 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.6314 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.19 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 231 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID hv61636051 Id of event.
Event Code 61636051 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pt17068051,us100087x8,hv61636051, A comma-separated list of event ids that are associated to an event.

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