Moderate earthquake 5 mag, 18 km S of Fern Acres, Hawaii

A moderate earthquake with magnitude 5 (ml/mb) was reported 18 kilometers (11 miles) from Fern Acres in Hawaii on Thursday. The earthquake occurred at a depth of 6.93 km (4 miles). Exact time and date of event in UTC/GMT: 03/05/18 / 2018-05-03 20:30:56 / May 3, 2018 @ 8:30 pm. The 5-magnitude earthquake was detected at 10:30:56 / 10:30 am (local time epicenter). Unique identifier: us1000dxhr. Ids that are associated to the event: hv70112126, pt18123050, us1000dxhr. Exact location of event, longitude -155.0702 West, latitude 19.3442 North, depth = 6.93 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Kalaoa, Waikoloa Village, Kailua. Event epicenter was 43 km (27 miles) from Hilo (c. 43 300 pop), 102 km (63 miles) from Kailua (c. 12 000 pop), 20 km (13 miles) from Hawaiian Paradise Park (c. 11 400 pop), 30 km (18 miles) from Hawaiian Paradise Park (c. 11 400 pop), 105 km (65 miles) from Kalaoa (c. 9 600 pop), 98 km (61 miles) from Waimea (c. 9 200 pop), 97 km (60 miles) from Hōlualoa (c. 8 500 pop). Close country/countries that might be effected, United States (c. 310 233 000 pop).

Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. There are an estimated 1320 moderate earthquakes in the world each year. In the past 24 hours, there have been eight, in the last 10 days twenty-eight, in the past 30 days thirty-one and in the last 365 days seventy-nine earthquakes of magnitude 3.0 or greater that has struck near.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 18 km S of Fern Acres, Hawaii.

More information

Parameter	Value	Description
Magnitude	5 mb	The magnitude for the event.
Longitude	-155.0702° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	19.3442° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	6.93 km	Depth of the event in kilometers.
Place	18km S of Fern Acres, Hawaii	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2018-05-03 20:30:56	Time when the event occurred. UTC/GMT
Updated	2018-05-03 21:56:13	Time when the event was most recently updated. UTC/GMT
Timezone offset	-600	Timezone offset from UTC in minutes at the event epicenter.
Felt	550	The total number of felt reports
CDI	4.1	The maximum reported intensity for the event.
MMI	6.13	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	600	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	,hv,pt,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	0.05	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.7 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	172	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	us1000dxhr	Id of event.
Event Code	1000dxhr	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,hv70112126,pt18123050,us1000dxhr,	A comma-separated list of event ids that are associated to an event.

Parameter

Value

Description

Magnitude

5 mb

The magnitude for the event.

Longitude

-155.0702° West

Decimal degrees longitude. Negative values for western longitudes.

Latitude

19.3442° North

Decimal degrees latitude. Negative values for southern latitudes.

Depth

6.93 km

Depth of the event in kilometers.

Place

18km S of Fern Acres, Hawaii

Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.

Time

2018-05-03 20:30:56

Time when the event occurred. UTC/GMT

Updated

2018-05-03 21:56:13

Time when the event was most recently updated. UTC/GMT

Timezone offset

-600

Timezone offset from UTC in minutes at the event epicenter.

Felt

550

The total number of felt reports

CDI

4.1

The maximum reported intensity for the event.

MMI

6.13

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

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

600

A number describing how significant the event is. Larger numbers indicate a more significant event.

Network

The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.

Sources

,hv,pt,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

0.05

Horizontal distance from the epicenter to the nearest station (in degrees).

Root Mean Square

0.7 sec

The root-mean-square (RMS) travel time residual, in sec, using all weights.

Azimuthal Gap

172

The largest azimuthal gap between azimuthally adjacent stations (in degrees).

Magnitude Type

The method or algorithm used to calculate the preferred magnitude for the event.

Event Type

earthquake

Type of seismic event.

Event ID

us1000dxhr

Id of event.

Event Code

1000dxhr

An identifying code assigned by, and unique from, the corresponding source for the event.

Event IDS

,hv70112126,pt18123050,us1000dxhr,

A comma-separated list of event ids that are associated to an event.

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Moderate earthquake 5 mag, 18 km S of Fern Acres, Hawaii

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