INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of Mwp 6.0 on date 15-09-2018 and time 10:05:31 (Italy) in region Ryukyu Islands, Japan [Sea: Japan]

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

  • 15-09-2018 08:05:31 (UTC)
  • 15-09-2018 10:05:31 (UTC +02:00) Italian time
  • 15-09-2018 16:05:31 (UTC +08:00) local time in the region of the earthquake (Asia/Taipei)

and geographic coordinates (lat, lon) 26.53, 129.54 at 15 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
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
Rev 100 mb 5.3
Mwp 6.0

Mwpd 6.1
2018-09-15
08:05:31
26.53 129.54 15 2018-09-15
08:22:17
Sala Sismica INGV-Roma 60978001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-15 08:05:31
Latitude 26.53
Longitude 129.54
Depth (km) 15 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 60978001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 21818
Semi-minor axis of confidence ellipse (meter) 1911
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 25
Circular confidence region, given by single value of horizontal uncertainty (meter) 17670.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65.5862
Number of associated phases, regardless of their use for origin computation 65
Number of defining phases 65
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 2.42581
Epicentral distance of station closest to the epicenter (degree) 1.66676
Epicentral distance of station farthest from the epicenter (degree) 81.03253
Number of stations at which the event was observed 56
Number of stations from which data was used for origin computation 56
Magnitudes information

Mwpd:6.1

Field Value
Value 6.1
Uncertainty 0.2
Num. used stations 11
Type of magnitude Mwpd
Reference to an origin 60978001
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-09-15 08:22:17

Mwp:6

Field Value
Value 6
Uncertainty 0.1
Num. used stations 12
Type of magnitude Mwp
Reference to an origin 60978001
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-09-15 08:22:17

mb:5.3

Field Value
Value 5.3
Uncertainty 0.1
Num. used stations 35
Type of magnitude mb
Reference to an origin 60978001
Agency INGV
Autore Auto added
Time of creation (UTC) 2018-09-15 08:22:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
US.NLWA.BHZ.00 2018-09-15T08:17:45.83 10.0 negative automatic P 41 81.0325 2.09163 0.161637
GE.ISP.BHZ.00 2018-09-15T08:17:44.80 10.0 negative automatic pP 308 80.6104 -1.67244 0
GE.MSBI.BHZ. 2018-09-15T08:17:39.27 10.0 positive automatic P 300 79.8395 2.09532 0
GE.CSS.BHZ. 2018-09-15T08:17:38.10 10.0 positive automatic P 304 79.8248 0.898735 0
IS.GEM.BHZ. 2018-09-15T08:17:33.68 10.0 positive automatic P 302 78.8109 2.0423 0
NZ.URZ.HHZ.10 2018-09-15T08:17:28.77 10.0 positive automatic P 144 78.6104 -1.73972 0
II.RAYN.BHZ.00 2018-09-15T08:17:10.67 10.0 positive automatic P 289 74.7219 2.04431 0.225028
DK.TULEG.BHZ. 2018-09-15T08:17:23.40 10.0 positive automatic sP 4 76.3054 0.362519 0
DK.TULEG.BHZ. 2018-09-15T08:17:22.95 10.0 positive automatic P 4 76.3054 5.34367 0.201564
IU.KIEV.BHZ.00 2018-09-15T08:17:15.72 10.0 positive automatic P 320 75.8659 0.590223 0.215693
CN.RES.BHZ. 2018-09-15T08:17:14.18 10.0 positive automatic sP 11 74.8012 -0.228185 0
II.RAYN.BHZ.00 2018-09-15T08:17:11.17 10.0 negative automatic pP 289 74.7219 -2.33444 0
GE.DAG.BHZ. 2018-09-15T08:17:10.35 10.0 negative automatic P 353 74.8797 0.909224 0.215756
NZ.OUZ.HHZ.10 2018-09-15T08:17:07.70 10.0 positive automatic P 144 74.469 0.637516 0.225048
CN.RES.BHZ. 2018-09-15T08:17:09.93 10.0 negative automatic P 11 74.8012 0.945198 0.221587
GE.VSU.BHZ. 2018-09-15T08:17:05.36 10.0 negative automatic P 328 73.9197 1.49789 0.215776
KO.GURO.HHZ. 2018-09-15T08:16:55.24 10.0 positive automatic pP 305 72.013 -2.40616 0
DK.NOR.BHZ. 2018-09-15T08:16:43.60 10.0 negative automatic P 355 70.5272 0.0328698 0.268162
II.KIV.BHZ.00 2018-09-15T08:16:41.62 10.0 negative automatic P 310 69.7945 2.36685 0
II.OBN.BHZ.00 2018-09-15T08:16:41.37 10.0 positive automatic P 323 70.1308 0.207491 0
IU.GNI.BHZ.00 2018-09-15T08:16:39.87 10.0 positive automatic P 306 69.5129 2.25682 0.279867
GE.KBS.BHZ.00 2018-09-15T08:16:38.72 10.0 negative automatic P 349 68.9762 4.69943 0.279659
IU.KEV.BHZ.00 2018-09-15T08:16:37.72 10.0 negative automatic P 339 69.3965 1.08849 0.281226
AU.TOO.BHZ. 2018-09-15T08:16:14.55 10.0 positive automatic P 166 65.8234 0.389039 0.324552
II.UOSS.BHZ.00 2018-09-15T08:16:10.87 10.0 positive automatic P 287 65.1012 1.44251 0
G.CAN.BHZ.00 2018-09-15T08:16:06.35 10.0 negative automatic P 162 64.5206 0.63542 0.349243
AU.ARMA.BHZ. 2018-09-15T08:15:40.47 10.0 positive automatic P 158 60.736 -0.0624769 0.400916
AU.HTT.BHZ. 2018-09-15T08:15:39.20 10.0 negative automatic P 171 60.6153 -0.442863 0.407474
G.DZM.BHZ.00 2018-09-15T08:15:37.55 10.0 positive automatic P 140 60.3139 -0.0612654 0.4069
ND.KOUNC.BHZ.00 2018-09-15T08:15:20.67 10.0 negative automatic P 141 57.8825 0.0507865 0.386954
II.ARTI.BHZ.00 2018-09-15T08:15:19.82 10.0 positive automatic P 322 57.8617 -0.692162 0.422428
AU.FORT.BHZ. 2018-09-15T08:15:16.27 10.0 positive automatic P 182 57.323 -0.421915 0.456003
KZ.ABKAR.BHZ. 2018-09-15T08:15:14.83 10.0 positive automatic P 313 57.181 -0.898295 0.463744
AU.MORW.BHZ. 2018-09-15T08:15:14.62 10.0 positive automatic P 194 57.0823 -0.395517 0.459657
AU.EIDS.BHZ. 2018-09-15T08:15:05.20 10.0 positive automatic P 156 55.8995 -1.38029 0.40469
II.SIMI.BHZ.00 2018-09-15T08:14:34.80 10.0 positive automatic P 300 51.4874 0.574107 0.48972
IU.CTAO.BHZ.00 2018-09-15T08:14:17.72 10.0 positive automatic P 159 49.352 -0.410269 0.564393
II.AAK.BHZ.00 2018-09-15T08:14:02.02 10.0 positive automatic P 305 47.1847 0.402576 0.615166
II.KURK.BHZ.00 2018-09-15T08:13:45.42 10.0 positive automatic P 316 45.3444 -1.47681 0.578874
IU.TIXI.BHZ.00 2018-09-15T08:13:42.72 10.0 positive automatic P 360 45.1048 -2.24907 0.421354
AU.FITZ.BHZ. 2018-09-15T08:13:41.80 10.0 negative automatic P 185 44.7896 -0.670683 0.569629
AU.COEN.BHZ. 2018-09-15T08:13:24.02 10.0 negative automatic P 160 42.5978 -0.840716 0.553162
IU.MAKZ.BHZ.00 2018-09-15T08:13:22.07 10.0 positive automatic P 311 42.3658 -0.956041 0.686033
AU.KDU.BHZ. 2018-09-15T08:12:56.45 10.0 positive automatic P 175 39.3174 -1.35043 0.734291
IU.MA2.BHZ.00 2018-09-15T08:12:32.62 10.0 negative automatic P 18 36.1474 1.57806 0.720504
IU.YAK.BHZ.00 2018-09-15T08:12:22.62 10.0 positive automatic P 0 35.5006 -2.83244 0.702725
GE.FAKI.BHZ. 2018-09-15T08:11:33.02 10.0 negative automatic P 175 29.5628 -0.490364 0.816327
GE.SANI.BHZ. 2018-09-15T08:11:25.37 10.0 negative automatic P 187 28.7826 -1.19615 0.869565
GE.LUWI.BHZ. 2018-09-15T08:11:21.02 10.0 negative automatic P 194 28.3322 -1.53275 0
IU.ULN.BHZ.00 2018-09-15T08:11:14.77 10.0 positive automatic P 326 27.6471 -1.94479 0.888889
JP.JMM.BHZ. 2018-09-15T08:08:59.90 10.0 positive automatic P 37 14.7791 2.10778 0.952381
IU.MAJO.BHZ.00 2018-09-15T08:08:31.92 10.0 positive automatic P 34 12.4295 6.14527 0.97561
JP.JGF.BHZ. 2018-09-15T08:08:09.40 10.0 negative automatic P 34 11.265 -0.482782 0.97561
JP.JCJ.BHZ. 2018-09-15T08:08:08.95 10.0 positive automatic P 84 11.2916 -1.222 0.952381
JP.JHJ2.BHZ. 2018-09-15T08:08:05.85 10.0 positive automatic P 51 11.0701 -1.27372 0.952381
JP.JTU.BHZ. 2018-09-15T08:07:23.75 10.0 positive automatic P 359 7.9992 -1.2913 0.43956
JP.JMN.BHZ. 2018-09-15T08:07:22.25 10.0 positive automatic P 26 8.1167 -4.48299 0.869565
IU.TATO.BHZ.00 2018-09-15T08:07:22.02 10.0 negative automatic P 260 7.4099 5.04674 0.930233
JP.JMZ.BHZ. 2018-09-15T08:05:56.50 10.0 positive automatic P 115 1.6668 -1.51911 0.851064
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