Earthquake with magnitude of Mwp 6.6 on date 10-11-2021 and time 15:45:13 (UTC) in region Southeast of Ryukyu Islands, Japan [Sea: Japan]

A magnitude Mwp 6.6 earthquake occured in region: Southeast of Ryukyu Islands, Japan [Sea: Japan], on

  • 10-11-2021 15:45:13 (UTC)
  • 10-11-2021 16:45:13 (UTC +01:00) Italian time
  • 10-11-2021 23:45:13 (UTC +08:00) local time in the region of the earthquake (Asia/Taipei)

and geographic coordinates (lat, lon) 23.495, 126.475 at 10 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 5.7
Mwp 6.6

Mwpd 6.7
2021-11-10
15:45:13
23.4949 126.475 10 2021-11-10
15:58:56
Sala Sismica INGV-Roma 97382461
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-10 15:45:13
Latitude 23.4949
Longitude 126.4750
Depth (km) 10 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 97382461

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 8291
Semi-minor axis of confidence ellipse (meter) 4523
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 295
Circular confidence region, given by single value of horizontal uncertainty (meter) 6693.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 27.8401
Number of associated phases, regardless of their use for origin computation 87
Number of defining phases 87
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 2.00585
Epicentral distance of station closest to the epicenter (degree) 3.31007
Epicentral distance of station farthest from the epicenter (degree) 62.56144
Number of stations at which the event was observed 79
Number of stations from which data was used for origin computation 79
Magnitudes information

Mwpd:6.7

Field Value
Value 6.7
Uncertainty 0.2
Num. used stations 47
Type of magnitude Mwpd
Reference to an origin 97382461
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-11-10 15:58:56

Mwp:6.6

Field Value
Value 6.6
Uncertainty 0.1
Num. used stations 57
Type of magnitude Mwp
Reference to an origin 97382461
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-11-10 15:58:56

mb:5.7

Field Value
Value 5.7
Uncertainty 0.1
Num. used stations 60
Type of magnitude mb
Reference to an origin 97382461
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-11-10 15:58:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
G.CAN.BHZ.00 2021-11-10T15:55:37.00 10.0 positive automatic P 159 62.5614 0.47655 0.350445
ND.ONTNC.BHZ.00 2021-11-10T15:55:19.70 10.0 negative automatic P 137 60.0747 0.117178 0.374566
IU.JOHN.BHZ.00 2021-11-10T15:55:24.07 10.0 positive automatic P 84 60.0081 4.95775 0.406354
G.DZM.BHZ.00 2021-11-10T15:55:19.14 10.0 negative automatic P 137 59.8956 0.652521 0
AU.HTT.BHZ. 2021-11-10T15:55:05.35 10.0 negative automatic P 168 58.1446 -0.966573 0
ND.KOUNC.BHZ.00 2021-11-10T15:55:01.85 10.0 negative automatic P 137 57.4173 0.757687 0
AK.GAMB.BHZ. 2021-11-10T15:54:58.15 10.0 negative automatic P 28 56.6992 2.15614 0
IU.NWAO.BHZ.00 2021-11-10T15:54:57.72 10.0 negative automatic P 189 57.1037 -1.20861 0.459253
G.SANVU.BHZ.00 2021-11-10T15:54:49.50 10.0 negative automatic P 130 55.6859 0.734644 0.453733
AU.EIDS.BHZ. 2021-11-10T15:54:38.35 10.0 negative automatic P 152 54.3644 -0.889673 0.507976
AU.FORT.BHZ.00 2021-11-10T15:54:37.68 10.0 negative automatic P 178 54.2928 -1.02732 0.497008
AU.MORW.BHZ. 2021-11-10T15:54:30.00 10.0 negative automatic P 191 53.5109 -2.01434 0.480762
AU.QLP.BHZ. 2021-11-10T15:54:27.47 10.0 positive automatic P 160 52.9379 -1.30313 0.531192
IU.ADK.BHZ.00 2021-11-10T15:54:18.60 10.0 negative automatic P 41 51.4412 0.957619 0.53024
IU.MIDW.BHZ.00 2021-11-10T15:54:13.87 10.0 positive automatic P 72 50.3132 4.75042 0.536037
II.SIMI.BHZ.00 2021-11-10T15:54:13.12 10.0 negative automatic P 302 50.6403 1.53218 0.556109
AU.WRKA.BHZ.00 2021-11-10T15:53:54.85 10.0 negative automatic P 178 48.5624 -1.00286 0.577462
IU.TIXI.BHZ.00 2021-11-10T15:53:52.57 10.0 negative automatic P 1 48.1564 -0.0527622 0.534557
AU.GIRL.BHZ.00 2021-11-10T15:53:50.65 10.0 positive automatic P 195 47.646 1.97195 0.389243
IU.CTAO.BHZ.00 2021-11-10T15:53:48.80 10.0 negative automatic P 155 47.6557 -0.000432972 0.572772
GE.HALK.BHZ. 2021-11-10T15:53:48.00 10.0 positive automatic P 256 47.3019 1.99928 0.572161
II.AAK.BHZ.00 2021-11-10T15:53:43.42 10.0 negative automatic P 307 46.7161 1.72768 0.594971
II.PALK.BHZ.00 2021-11-10T15:53:43.97 10.0 positive automatic P 257 46.7618 2.12292 0.629997
AT.SMY.BHZ. 2021-11-10T15:53:41.76 10.0 negative automatic P 38 46.2463 4.0294 0.61406
GE.MALK.BHZ. 2021-11-10T15:53:41.22 10.0 negative automatic P 259 46.4289 2.04722 0.613759
II.KURK.BHZ.00 2021-11-10T15:53:34.35 10.0 positive automatic P 319 45.7137 0.789938 0.591768
IU.MBWA.BHZ.00 2021-11-10T15:53:26.57 10.0 negative automatic P 189 45.1322 -2.37235 0.636358
II.WRAB.BHZ.00 2021-11-10T15:53:19.75 10.0 negative automatic P 169 44.1019 -0.997692 0.678269
IU.MAKZ.BHZ.00 2021-11-10T15:53:07.00 10.0 positive automatic P 315 42.4044 0.930681 0.662138
AU.FITZ.BHZ. 2021-11-10T15:52:58.55 10.0 negative automatic P 181 41.6031 -1.88812 0.725237
IU.MA2.BHZ.00 2021-11-10T15:52:46.97 10.0 negative automatic P 19 39.9078 0.48312 0.748974
AU.XMI.BHZ. 2021-11-10T15:52:43.22 10.0 positive automatic P 213 39.5661 -0.405359 0.755586
IU.YAK.BHZ.00 2021-11-10T15:52:34.57 10.0 positive automatic P 2 38.5962 -0.910839 0.756496
IU.PET.BHZ.00 2021-11-10T15:52:33.57 10.0 positive automatic P 31 38.2411 1.07247 0.781496
IU.WAKE.BHZ.00 2021-11-10T15:52:30.42 10.0 negative automatic P 89 37.5267 3.97603 0.786286
AU.RABL.BHZ.00 2021-11-10T15:52:25.73 10.0 negative automatic P 135 37.3334 0.874866 0.7995
AU.KDU.BHZ.00 2021-11-10T15:52:17.15 10.0 positive automatic P 170 36.6529 -1.87048 0.803562
AU.MTN.BHZ.00 2021-11-10T15:52:16.38 10.0 positive automatic P 172 36.6215 -2.39417 0.751164
GE.MNAI.BHZ. 2021-11-10T15:52:15.07 10.0 negative automatic P 223 36.0813 0.911139 0
GE.GSI.BHZ. 2021-11-10T15:52:11.02 10.0 negative automatic P 236 35.7306 -0.122239 0.759457
GE.LHMI.BHZ. 2021-11-10T15:51:56.82 10.0 negative automatic P 242 33.7975 2.399 0.851311
GE.JAGI.BHZ. 2021-11-10T15:51:55.92 10.0 negative automatic P 202 34.1585 -1.67072 0.558328
II.TLY.BHZ.00 2021-11-10T15:51:48.37 10.0 positive automatic P 334 33.1874 -0.832421 0.884332
GE.SOEI.BHZ. 2021-11-10T15:51:47.27 10.0 negative automatic P 184 33.3187 -3.16547 0.841507
AU.MANU.BHZ.00 2021-11-10T15:51:45.00 10.0 negative automatic P 139 32.642 0.639596 0.783836
GE.MMRI.BHZ. 2021-11-10T15:51:40.47 10.0 negative automatic P 188 32.3952 -1.72337 0.860074
GE.SAUI.BHZ. 2021-11-10T15:51:36.22 10.0 negative automatic P 171 31.8274 -0.981811 0.833693
IN.SHL.HHZ. 2021-11-10T15:51:35.50 10.0 positive automatic P 281 31.4729 1.4299 0.907698
MY.IPM.BHZ. 2021-11-10T15:51:31.22 10.0 negative automatic P 236 31.0489 0.845461 0.952438
II.KAPI.BHZ.00 2021-11-10T15:51:12.52 10.0 negative automatic P 194 29.253 -1.97853 0.610687
IU.ULN.BHZ.00 2021-11-10T15:51:09.87 10.0 positive automatic P 332 28.8483 -1.25817 0.888889
GE.BNDI.BHZ. 2021-11-10T15:51:03.87 10.0 negative automatic P 173 28.2152 -1.34809 0
IU.YSS.BHZ.00 2021-11-10T15:50:54.00 10.0 positive automatic P 25 26.8483 1.01003 0.833333
GE.FAKI.BHZ. 2021-11-10T15:50:53.77 10.0 negative automatic P 167 27.0054 -0.631926 0.930233
GE.BKB.BHZ. 2021-11-10T15:50:49.97 10.0 negative automatic P 202 26.3022 1.91117 0.869565
IU.CHTO.BHZ.00 2021-11-10T15:50:46.07 10.0 positive automatic P 265 26.0546 0.197153 0.987654
GE.SANI.BHZ. 2021-11-10T15:50:39.42 10.0 positive automatic P 181 25.5478 -1.78935 0.833333
MY.SBM.BHZ. 2021-11-10T15:50:33.67 10.0 negative automatic P 215 25.1644 -4.09601 0.952381
GE.LUWI.BHZ. 2021-11-10T15:50:31.67 10.0 negative automatic P 189 24.7984 -2.72567 0
II.ERM.BHZ.00 2021-11-10T15:50:18.12 10.0 positive automatic P 33 23.1411 -0.596703 0.97561
GE.TNTI.BHZ. 2021-11-10T15:50:14.72 10.0 negative automatic P 178 22.7386 0.254931 0.930233
JP.JTM.BHZ. 2021-11-10T15:49:57.10 10.0 positive automatic P 32 21.1873 -0.792294 0.754717
RM.SLV.BHZ. 2021-11-10T15:49:57.17 10.0 positive automatic P 268 20.9535 1.71572 0.97561
RM.DLV.BHZ. 2021-11-10T15:49:53.77 10.0 negative automatic P 239 20.6258 1.76705 0.615385
IU.GUMO.BHZ.00 2021-11-10T15:49:48.07 10.0 negative automatic P 116 20.023 2.79233 0.8
IU.MAJO.BHZ.00 2021-11-10T15:49:02.12 10.0 positive automatic P 35 16.5062 -1.85376 0.952381
JP.JHJ2.BHZ. 2021-11-10T15:48:48.00 10.0 positive automatic P 48 15.1562 1.58211 0.97561
JP.JGF.BHZ. 2021-11-10T15:48:47.25 10.0 positive automatic P 35 15.3448 -1.73062 0.952381
JP.JSG.BHZ. 2021-11-10T15:48:46.60 10.0 positive automatic P 40 15.1326 0.488154 0.952381
JP.JCJ.BHZ. 2021-11-10T15:48:43.70 10.0 positive automatic P 72 14.6406 4.24562 0.888889
G.INU.BHZ.00 2021-11-10T15:48:42.06 10.0 negative automatic P 35 14.9795 -2.01456 0.869565
IU.INCN.BHZ.00 2021-11-10T15:48:29.47 10.0 positive automatic P 0 13.9827 -0.997358 0.909091
JP.JMN.BHZ. 2021-11-10T15:48:01.40 10.0 negative automatic P 31 12.1149 -3.63939 0.909091
JP.JTU.BHZ. 2021-11-10T15:47:53.50 10.0 positive automatic P 12 11.3224 -0.619236 0.769231
JP.JSU.BHZ. 2021-11-10T15:47:16.85 10.0 negative automatic P 23 8.7542 -2.14123 0.909091
IU.TATO.BHZ.00 2021-11-10T15:46:24.47 10.0 positive automatic P 289 4.773 0.185058 0.930233
JP.JMZ.BHZ. 2021-11-10T15:46:23.50 10.0 positive automatic P 61 4.9016 -2.5364 0.97561
JP.JOW.BHZ. 2021-11-10T15:46:08.10 10.0 positive automatic P 26 3.7159 -1.66397 0.952381
JP.YOJ.BHZ. 2021-11-10T15:46:03.65 10.0 positive automatic P 288 3.3101 -0.500475 0.952381
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