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Minor earthquake, 3 mag strikes near Volcano in Hawaii


Earthquake location 19.3507S, -155.304WA minor earthquake magnitude 3 (ml/mb) strikes 11 kilometers (7 miles) from Volcano in Hawaii on Saturday. Id of earthquake: us2000gart. Event ids that are associated: us2000gart. Global time and date of event 21/07/18 / 2018-07-21 15:40:29 / July 21, 2018 @ 3:40 pm UTC/GMT. The epicenter was at a depth of 2.68 km (2 miles). The 3-magnitude earthquake was detected at 05:40:29 / 5:40 am (local time epicenter). Exact location, longitude -155.304° West, latitude 19.3507° North, depth = 2.68 km.

Earthquake epicenter was 48 km (30 miles) from Hilo (c. 43 300 pop), 79 km (49 miles) from Kailua (c. 12 000 pop), 39 km (24 miles) from Hawaiian Paradise Park (c. 11 400 pop), 44 km (27 miles) from Hawaiian Paradise Park (c. 11 400 pop), 74 km (46 miles) from Hōlualoa (c. 8 500 pop). Nearest cities/city/towns to hypocenter/epicentrum was Kailua, Hōlualoa, Hilo (min 5000 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop).

In the past 24 hours, there have been one hundred and six, in the last 10 days six hundred and sixty-five, in the past 30 days two thousand, four hundred and ninety-one and in the last 365 days three thousand, nine hundred and four earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 2.5 to 3.5 are often felt, but only causes minor damage. There are an estimated 130,000 minor earthquakes in the world each year.

Did you feel anything?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 11 km SW of Volcano, Hawaii. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 3 mb The magnitude for the event.
Longitude -155.304° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 19.3507° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 2.68 km Depth of the event in kilometers.
Place 11km SW of Volcano, Hawaii Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-07-21 15:40:29 Time when the event occurred. UTC/GMT
Updated 2018-07-21 18:16:03 Time when the event was most recently updated. UTC/GMT
Timezone offset -600 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 138 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 0.015 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.68 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 63 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 us2000gart Id of event.
Event Code 2000gart An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000gart, A comma-separated list of event ids that are associated to an event.

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