Earthquake with magnitude of Mwp 6.0 on date 02-07-2021 and time 20:14:39 (UTC) in region Fiji Islands region [Sea: Fiji]

A magnitude Mwp 6.0 earthquake occured in region: Fiji Islands region [Sea: Fiji], on

  • 02-07-2021 20:14:39 (UTC)
  • 02-07-2021 22:14:39 (UTC +02:00) Italian time
  • 03-07-2021 08:14:39 (UTC +12:00) local time in the region of the earthquake (Pacific/Fiji)

and geographic coordinates (lat, lon) -21.565, -179.442 at 610 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

Search earthquakes: Any within 30 km radius

The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.

Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

No Italian municipalities within 100 km from the epicenter with at least 50000 inhabitants.

Recent and historical seismicity
Seismic hazard
Shakemap

These three maps show the results of the analysis using the software ShakeMap designed to provide the level of ground shaking experienced in a region using the data recorded by seismometers and strong motion instruments and seismological information regarding the attenuation of the wavefield with distance and the site characteristics. The Shakemaps are determined for research purposes to provide fast estimates of the level of ground shaking produced by the earthquake. The maps are calculated automatically and updated as more data become available. See http://shakemap.ingv.it for additional information. The black star indicates the epicenter. The triangles show the accelerometric and velocimetric stations used in the calculation, colored according to the recorded shaking.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of instrumental intensities. The intensity is derived through an empirical law that correlates the recorded values of actual ground shaking, e.g., acceleration and velocity, with the macroseismic intensity for Italian earthquakes, as reported in the Italian Macroseismic Database (DBMI15, https://doi.org/10.13127/cpti/cpti15.3).
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows the distribution of peak ground acceleration expressed as percent of the acceleration of gravity (i.e., g = 9.81 m/s²).
Peak velocity Shakemap

Peak velocity Shakemap

This map shows the distribution of peak ground velocities expressed in cm/s.
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
mb 5.5
Mwp 6.0

Mwpd 6.3
2021-07-02
20:14:39
-21.5648 -179.442 610 2021-07-02
20:36:32
Sala Sismica INGV-Roma 92167431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-02 20:14:39
Latitude -21.5648
Longitude -179.4420
Depth (km) 610 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 92167431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 21785
Semi-minor axis of confidence ellipse (meter) 13793
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 88
Circular confidence region, given by single value of horizontal uncertainty (meter) 18085.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132.009
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.897863
Epicentral distance of station closest to the epicenter (degree) 4.48928
Epicentral distance of station farthest from the epicenter (degree) 50.46848
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 31
Magnitudes information

Mwpd:6.3

Field Value
Value 6.3
Uncertainty 0.1
Num. used stations 6
Type of magnitude Mwpd
Reference to an origin 92167431
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-07-02 20:36:32

Mwp:6

Field Value
Value 6
Uncertainty 0.1
Num. used stations 8
Type of magnitude Mwp
Reference to an origin 92167431
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-07-02 20:36:32

mb:5.5

Field Value
Value 5.5
Uncertainty 0.1
Num. used stations 20
Type of magnitude mb
Reference to an origin 92167431
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-07-02 20:36:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GE.FAKI.BHZ. 2021-07-02T20:22:41.87 10.0 negative automatic P 285 50.4685 0.141212 0.521784
IU.MIDW.BHZ.00 2021-07-02T20:22:36.62 10.0 positive automatic P 2 49.8184 -0.363507 0
IU.GUMO.BHZ.00 2021-07-02T20:22:36.35 10.0 negative automatic P 312 49.6194 0.788409 0.580213
AU.WRKA.BHZ.00 2021-07-02T20:22:22.78 10.0 negative automatic P 255 47.8322 0.294978 0.618619
IU.POHA.BHZ.00 2021-07-02T20:22:20.32 10.0 negative automatic P 31 47.4738 0.268296 0.625
GE.GENI.BHZ. 2021-07-02T20:21:51.17 10.0 negative automatic P 290 43.5926 0.854786 0.663815
II.WRAB.BHZ.00 2021-07-02T20:21:46.32 10.0 negative automatic P 263 43.0728 -0.0288107 0
IU.WAKE.BHZ.00 2021-07-02T20:21:46.07 10.0 negative automatic P 341 43.0516 -0.0552652 0.62964
IU.SNZO.BHZ.00 2021-07-02T20:21:41.70 10.0 positive automatic S 193 20.3518 -2.99469 0
G.TAOE.BHZ.00 2021-07-02T20:21:21.68 10.0 positive automatic P 78 39.8476 0.566976 0.736211
IU.JOHN.BHZ.00 2021-07-02T20:21:19.20 10.0 positive automatic P 15 39.5091 0.917232 0.75679
AU.HTT.BHZ. 2021-07-02T20:21:10.17 10.0 negative automatic P 243 38.5024 -0.165952 0.795388
NZ.URZ.HHZ.10 2021-07-02T20:20:45.22 10.0 positive automatic S 189 16.957 -5.18115 0
II.TAU.BHZ.00 2021-07-02T20:20:39.92 10.0 negative automatic P 225 34.9165 -1.06377 0.848537
AU.QLP.BHZ. 2021-07-02T20:20:28.92 10.0 negative automatic P 254 33.4282 0.302842 0.900844
AU.RABL.BHZ.00 2021-07-02T20:20:20.25 10.0 negative automatic P 298 32.5623 -1.1137 0.876729
IU.CTAO.BHZ.00 2021-07-02T20:20:17.75 10.0 negative automatic P 266 32.031 0.840136 0.931033
IU.XMAS.BHZ.00 2021-07-02T20:20:16.62 10.0 positive automatic P 45 31.9344 0.590488 0.910921
AU.MILA.BHZ.00 2021-07-02T20:20:09.78 10.0 negative automatic P 233 31.2429 -0.527539 0
G.CAN.BHZ.00 2021-07-02T20:20:06.30 10.0 negative automatic P 237 30.7854 -0.0984958 0.958365
AU.RIV.BHZ. 2021-07-02T20:19:48.07 10.0 positive automatic P 238 28.6343 0.244178 0.987654
G.PPTF.BHZ.00 2021-07-02T20:19:45.80 10.0 positive automatic P 87 28.3836 0.018539 0.930233
AU.ARMA.BHZ. 2021-07-02T20:19:37.92 10.0 negative automatic P 245 27.3739 0.832964 0.963855
AU.EIDS.BHZ. 2021-07-02T20:19:36.12 10.0 negative automatic P 256 27.2477 0.285141 0.97561
IU.HNR.BHZ.00 2021-07-02T20:19:00.10 10.0 negative automatic P 298 23.2232 -0.336863 0.952381
AU.LHI.BHZ.00 2021-07-02T20:18:46.73 10.0 negative automatic P 238 21.5959 0.747946 0.963855
IU.RAR.BHZ.00 2021-07-02T20:18:15.60 10.0 positive automatic P 93 18.3046 -0.742038 0.824742
G.SANVU.BHZ.00 2021-07-02T20:17:36.15 10.0 negative automatic P 294 14.0539 -1.29237 0.615385
AU.NFK.BHZ.00 2021-07-02T20:17:33.02 10.0 positive automatic P 234 13.6255 -0.458832 0.917431
IU.AFI.BHZ.00 2021-07-02T20:17:00.60 10.0 negative automatic P 45 10.5727 -2.51012 0.963855
II.MSVF.BHZ.00 2021-07-02T20:16:09.22 10.0 positive automatic P 328 4.4893 1.02855 0.909091
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download