Earthquake with magnitude of Mwp 6.3 on date 06-03-2021 and time 12:05:24 (UTC) in region New Zealand [Sea]

A magnitude Mwp 6.3 earthquake occured in region: New Zealand [Sea], on

  • 06-03-2021 12:05:24 (UTC)
  • 06-03-2021 13:05:24 (UTC +01:00) Italian time
  • 07-03-2021 01:05:24 (UTC +13:00) local time in the region of the earthquake (Pacific/Tongatapu)

and geographic coordinates (lat, lon) -28.15, -177.77 at 7 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 adjourned progressively as more data become available. See http://shakemap.rm.ingv.it/ for additional information.

The red star indicates the epicenter. The red triangles show the stations of the INGV Italian National Seismic Network and the blue triangles those of the Nationa Accelerometric Network of the Dipartimento della Protezione Civile.

Intensity Shakemap

Intensity Shakemap

This map shows the distribution of the istrumentally derived intensities. To this purpose, it is used a conversion relation between ground acceleration and velocity, and the Mercalli Modificata (MMI - Modified Mercalli Intensity) scale. In general, the Mercalli intensity scale relies on the effects that the ground shaking produces as reported by an observer.
Peak ground acceleration Shakemap

Peak ground acceleration Shakemap

This map shows This map shows the distribution of peak ground acceleration expressed as per cent 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
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
mb 5.3
Mwp 6.3

Mwpd 6.4
2021-03-06
12:05:24
-28.15 -177.77 7 2021-03-06
12:22:30
Sala Sismica INGV-Roma 87816601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-06 12:05:24
Latitude -28.15
Longitude -177.77
Depth (km) 7 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 87816601

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 17938
Semi-minor axis of confidence ellipse (meter) 13485
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 314
Circular confidence region, given by single value of horizontal uncertainty (meter) 14526.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 53.2168
Number of associated phases, regardless of their use for origin computation 67
Number of defining phases 67
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 2.20716
Epicentral distance of station closest to the epicenter (degree) 1.10759
Epicentral distance of station farthest from the epicenter (degree) 98.68725
Number of stations at which the event was observed 64
Number of stations from which data was used for origin computation 64
Magnitudes information

Mwp:6.3

Field Value
Value 6.3
Uncertainty 0.1
Num. used stations 30
Type of magnitude Mwp
Reference to an origin 87816601
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-03-06 12:22:30

Mwpd:6.4

Field Value
Value 6.4
Uncertainty 0.1
Num. used stations 27
Type of magnitude Mwpd
Reference to an origin 87816601
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-03-06 12:22:30

mb:5.3

Field Value
Value 5.3
Uncertainty 0.1
Num. used stations 57
Type of magnitude mb
Reference to an origin 87816601
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-03-06 12:22:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IU.RSSD.BHZ.00 2021-03-06T12:19:02.67 10.0 positive automatic P 44 98.6873 -0.0872878 0.0402207
US.BOZ.BHZ.00 2021-03-06T12:18:46.98 10.0 negative automatic P 40 95.0135 0.938289 0.0636887
US.BW06.BHZ.00 2021-03-06T12:18:43.78 10.0 positive automatic P 43 94.587 -0.419283 0.0623698
US.AHID.BHZ.00 2021-03-06T12:18:40.83 10.0 negative automatic P 42 93.6621 0.928003 0.0682817
IU.CHTO.BHZ.00 2021-03-06T12:18:36.92 10.0 negative automatic P 290 93.122 -0.225354 0.0517723
AK.GAMB.BHZ. 2021-03-06T12:18:32.51 10.0 positive automatic P 3 92.0429 0.417359 0.0798905
US.HWUT.BHZ.00 2021-03-06T12:18:35.90 10.0 positive automatic P 43 92.7031 0.439917 0.0765233
IU.ANMO.BHZ.00 2021-03-06T12:18:34.02 10.0 positive automatic P 51 92.2103 0.838229 0.0768501
US.HLID.BHZ.00 2021-03-06T12:18:33.50 10.0 positive automatic P 40 92.2062 0.345857 0.0796206
US.DUG.BHZ.00 2021-03-06T12:18:30.23 10.0 negative automatic P 44 91.1046 2.22816 0.0846891
US.HAWA.BHZ.00 2021-03-06T12:18:30.13 10.0 positive automatic P 36 91.2244 1.76019 0.082015
US.BMO.BHZ.00 2021-03-06T12:18:29.73 10.0 positive automatic P 38 91.4029 0.399051 0.0847573
US.MNTX.BHZ.00 2021-03-06T12:18:29.15 10.0 positive automatic P 54 91.1926 0.925089 0.0401934
US.ELK.BHZ.00 2021-03-06T12:18:23.65 10.0 positive automatic P 42 89.982 0.752863 0.0860415
US.WUAZ.BHZ.00 2021-03-06T12:18:20.75 10.0 positive automatic P 48 89.2329 1.46105 0.0907895
C.GO04.BHZ. 2021-03-06T12:18:20.55 10.0 positive automatic P 124 89.1605 1.51095 0.099946
US.WVOR.BHZ.00 2021-03-06T12:18:19.35 10.0 positive automatic P 39 89.1033 0.712612 0.0826406
C1.CO02.BHZ. 2021-03-06T12:18:16.93 10.0 positive automatic P 125 88.4616 1.34033 0.103701
MX.MOIG.BHZ. 2021-03-06T12:18:15.81 10.0 positive automatic PcP 66 88.0109 0.413709 0
IU.TUC.BHZ.00 2021-03-06T12:18:13.45 10.0 negative automatic P 51 87.7486 1.28383 0.105144
US.TPNV.BHZ.00 2021-03-06T12:18:10.00 10.0 positive automatic P 45 86.9893 1.38913 0.109336
C1.BO02.BHZ. 2021-03-06T12:18:08.52 10.0 positive automatic P 128 86.695 1.47044 0.119512
AU.EIDS.BHZ. 2021-03-06T12:18:04.37 10.0 positive automatic ScP 268 27.8738 -4.0237 0
BK.CMB.BHZ.00 2021-03-06T12:18:00.07 10.0 positive automatic P 42 85.1954 0.47445 0.126844
II.PFO.BHZ.00 2021-03-06T12:17:59.90 10.0 positive automatic P 47 84.7548 2.41469 0.128829
MX.SRIG.BHZ. 2021-03-06T12:17:54.43 10.0 positive automatic P 54 83.7963 2.03334 0
MY.KUM.BHZ. 2021-03-06T12:17:57.42 10.0 negative automatic P 279 85.1162 -1.66692 0
C.GO06.BHZ. 2021-03-06T12:17:54.05 10.0 positive automatic P 132 83.6885 1.99529 0.12989
GT.PLCA.BHZ.00 2021-03-06T12:17:53.65 10.0 negative automatic P 133 83.6803 1.67228 0.14233
IU.YSS.BHZ.00 2021-03-06T12:17:47.45 10.0 negative automatic P 334 83.1146 -1.45849 0.114435
C1.LL02.BHZ. 2021-03-06T12:17:42.90 10.0 positive automatic P 135 81.5724 2.02245 0.146655
JP.JKA.BHZ. 2021-03-06T12:17:36.75 10.0 negative automatic PcP 331 78.3811 3.90435 0
JP.JSU.BHZ. 2021-03-06T12:17:16.75 10.0 positive automatic P 317 77.3707 -1.251 0.20527
JP.JGF.BHZ. 2021-03-06T12:17:13.05 10.0 negative automatic P 324 76.4985 -0.0653546 0.199677
IU.MAJO.BHZ.00 2021-03-06T12:17:12.92 10.0 negative automatic P 325 76.7903 -1.81297 0.0951782
G.INU.BHZ.00 2021-03-06T12:17:12.16 10.0 negative automatic P 323 76.4736 -0.735828 0.204569
MY.SBM.BHZ. 2021-03-06T12:16:55.02 10.0 positive automatic P 282 73.6834 -1.79769 0.244721
GE.JAGI.BHZ. 2021-03-06T12:16:11.22 10.0 negative automatic P 273 66.7249 -2.94138 0.244964
II.KAPI.BHZ.00 2021-03-06T12:15:51.15 10.0 positive automatic P 279 63.438 -1.67674 0.314921
GE.LUWI.BHZ. 2021-03-06T12:15:46.97 10.0 negative automatic P 285 62.8301 -1.76749 0.339544
GE.SANI.BHZ. 2021-03-06T12:15:24.37 10.0 negative automatic P 286 59.5635 -2.2268 0.407934
GE.SOEI.BHZ. 2021-03-06T12:15:10.37 10.0 negative automatic P 277 57.2515 -0.256029 0.387122
AU.MORW.BHZ. 2021-03-06T12:15:09.15 10.0 positive automatic P 252 57.2916 -1.63353 0.456476
IU.MBWA.BHZ.00 2021-03-06T12:15:03.92 10.0 positive automatic P 262 56.6309 -2.15551 0.40337
IU.SBA.BHZ.00 2021-03-06T12:14:20.95 10.0 positive automatic P 184 50.2043 2.11339 0.550364
GT.VNDA.BHZ.00 2021-03-06T12:14:20.13 10.0 positive automatic P 186 50.2634 0.834524 0.555862
AU.MTN.BHZ.00 2021-03-06T12:14:14.43 10.0 negative automatic P 277 49.8508 -1.74166 0.46892
AU.KDU.BHZ.00 2021-03-06T12:14:06.18 10.0 negative automatic P 278 48.7487 -1.54511 0.536966
AU.WRKA.BHZ.00 2021-03-06T12:13:59.55 10.0 negative automatic P 261 47.9333 -1.97857 0.568309
AU.FORT.BHZ.00 2021-03-06T12:13:50.48 10.0 negative automatic P 253 46.7743 -1.94684 0.493196
II.WRAB.BHZ.00 2021-03-06T12:13:30.67 10.0 negative automatic P 270 44.2002 -1.38898 0.652945
AU.HTT.BHZ. 2021-03-06T12:12:34.77 10.0 negative automatic P 251 37.3091 -0.472317 0.772495
IU.CTAO.BHZ.00 2021-03-06T12:12:03.80 10.0 positive automatic P 276 33.6744 -0.137924 0.71997
AU.QLP.BHZ. 2021-03-06T12:12:03.37 10.0 negative automatic P 264 33.6403 -0.240957 0.854613
AU.MILA.BHZ.00 2021-03-06T12:11:25.40 10.0 negative automatic P 244 29.082 1.81557 0.91954
G.CAN.BHZ.00 2021-03-06T12:11:24.20 10.0 positive automatic P 247 29.0121 1.25241 0.909091
AU.EIDS.BHZ. 2021-03-06T12:11:13.45 10.0 negative automatic P 268 27.8738 0.716559 0.909091
AU.ARMA.BHZ. 2021-03-06T12:11:04.17 10.0 negative automatic P 258 26.7046 1.7905 0.909091
G.SANVU.BHZ.00 2021-03-06T12:09:45.40 10.0 positive automatic P 309 18.8294 2.71296 0.43956
IU.RAR.BHZ.00 2021-03-06T12:09:31.57 10.0 negative automatic P 71 17.736 1.78865 0.941176
NZ.KHZ.HHZ.10 2021-03-06T12:09:05.20 10.0 negative automatic P 204 15.9138 -1.56487 0.966184
IU.AFI.BHZ.00 2021-03-06T12:08:54.37 10.0 negative automatic P 23 15.2881 -4.33766 0.930233
II.MSVF.BHZ.00 2021-03-06T12:08:05.12 10.0 positive automatic P 339 11.0862 3.67515 0.97561
NZ.OUZ.HHZ.10 2021-03-06T12:07:51.11 10.0 negative automatic P 224 10.1907 2.05586 0.485437
IU.RAO.BHZ.00 2021-03-06T12:05:28.07 10.0 negative automatic Pg 187 1.1076 -15.5821 0.0299289
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download