Earthquake with magnitude of Mwp 6.8 on date 01-05-2021 and time 01:27:28 (UTC) in region Near east coast of eastern Honshu, Japan [Sea: Japan]

A magnitude Mwp 6.8 earthquake occured in region: Near east coast of eastern Honshu, Japan [Sea: Japan], on

  • 01-05-2021 01:27:28 (UTC)
  • 01-05-2021 03:27:28 (UTC +02:00) Italian time
  • 01-05-2021 10:27:28 (UTC +09:00) local time in the region of the earthquake (Asia/Tokyo)

and geographic coordinates (lat, lon) 38.132, 141.721 at 66 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 6.8

Mwpd 6.9
2021-05-01
01:27:28
38.1322 141.721 66 2021-05-01
01:48:10
Sala Sismica INGV-Roma 89647431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-01 01:27:28
Latitude 38.1322
Longitude 141.7210
Depth (km) 66 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 89647431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3875
Semi-minor axis of confidence ellipse (meter) 2205
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 296
Circular confidence region, given by single value of horizontal uncertainty (meter) 3536.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43.0628
Number of associated phases, regardless of their use for origin computation 76
Number of defining phases 76
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.72862
Epicentral distance of station closest to the epicenter (degree) 2.70507
Epicentral distance of station farthest from the epicenter (degree) 62.26766
Number of stations at which the event was observed 72
Number of stations from which data was used for origin computation 72
Magnitudes information

Mwpd:6.9

Field Value
Value 6.9
Uncertainty 0.1
Num. used stations 37
Type of magnitude Mwpd
Reference to an origin 89647431
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-05-01 01:48:10

Mwp:6.8

Field Value
Value 6.8
Uncertainty 0.1
Num. used stations 47
Type of magnitude Mwp
Reference to an origin 89647431
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-05-01 01:48:10

mb:5.7

Field Value
Value 5.7
Uncertainty 0.1
Num. used stations 45
Type of magnitude mb
Reference to an origin 89647431
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-05-01 01:48:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GE.MALK.BHZ. 2021-05-01T01:37:44.12 10.0 positive automatic P 258 62.2677 0.50658 0.37947
US.WRAK.BHZ.00 2021-05-01T01:37:32.83 10.0 positive automatic sP 41 56.9531 1.4331 0
GE.KBS.BHZ.00 2021-05-01T01:37:25.97 10.0 negative automatic P 350 59.3797 1.96441 0
AU.XMI.BHZ. 2021-05-01T01:37:19.97 10.0 positive automatic P 222 59.097 -2.1145 0
G.SANVU.BHZ.00 2021-05-01T01:37:18.60 10.0 positive automatic P 151 58.6682 -0.478746 0.420531
IU.CTAO.BHZ.00 2021-05-01T01:37:16.07 10.0 positive automatic P 175 58.3734 -1.00807 0.200709
US.WRAK.BHZ.00 2021-05-01T01:37:10.43 10.0 positive automatic P 41 56.9531 3.36272 0.386921
AT.CRAG.BHZ. 2021-05-01T01:37:10.10 10.0 positive automatic P 42 56.8809 3.55336 0.237603
GE.MNAI.BHZ. 2021-05-01T01:36:56.32 10.0 positive automatic P 229 55.6237 -1.29546 0.219812
AT.SKAG.BHZ. 2021-05-01T01:36:52.68 10.0 positive automatic P 38 54.4852 3.27679 0.170607
GE.GSI.BHZ. 2021-05-01T01:36:50.52 10.0 positive automatic P 239 54.6641 -0.175708 0.479725
GE.SMRI.BHZ. 2021-05-01T01:36:43.97 10.0 positive automatic P 220 53.7422 -0.0343495 0.233383
GE.BKNI.BHZ. 2021-05-01T01:36:40.07 10.0 positive automatic P 235 53.1273 0.590046 0.515467
GE.JAGI.BHZ. 2021-05-01T01:36:37.27 10.0 positive automatic P 215 53.2198 -2.90657 0.237225
GE.LHMI.BHZ. 2021-05-01T01:36:34.47 10.0 positive automatic P 243 52.239 1.55824 0.50571
AU.MTN.BHZ.00 2021-05-01T01:36:29.25 10.0 positive automatic P 193 51.9302 -1.39573 0.534816
AU.KDU.BHZ.00 2021-05-01T01:36:26.55 10.0 positive automatic P 192 51.5504 -1.2492 0.534665
IN.PBA.HHZ. 2021-05-01T01:36:23.32 10.0 positive automatic P 252 50.9193 0.236987 0.554074
GE.SOEI.BHZ. 2021-05-01T01:36:19.17 10.0 positive automatic P 202 50.5856 -1.57047 0.556977
II.AAK.BHZ.00 2021-05-01T01:36:17.67 10.0 positive automatic P 298 50.0389 0.956267 0.552951
GE.MMRI.BHZ. 2021-05-01T01:36:16.47 10.0 positive automatic P 205 50.1745 -1.00962 0.538213
MY.KUM.BHZ. 2021-05-01T01:36:13.87 10.0 positive automatic P 239 49.6519 0.358187 0.559312
IU.COLA.BHZ.00 2021-05-01T01:36:01.57 10.0 positive automatic P 33 47.854 1.81802 0.582576
II.KAPI.BHZ.00 2021-05-01T01:35:58.45 10.0 positive automatic P 210 47.7216 -0.298492 0.605677
IU.TARA.BHZ.00 2021-05-01T01:35:51.07 10.0 negative automatic P 135 46.5874 1.19614 0.288705
II.KDAK.BHZ.00 2021-05-01T01:35:45.67 10.0 positive automatic P 43 45.97 0.620059 0.644137
GE.BKB.BHZ. 2021-05-01T01:35:42.17 10.0 positive automatic P 216 45.4196 1.46701 0.577546
II.KURK.BHZ.00 2021-05-01T01:35:40.40 10.0 positive automatic P 307 45.309 0.552926 0.664098
MY.SBM.BHZ. 2021-05-01T01:35:35.07 10.0 positive automatic P 224 44.7337 -0.216197 0.674724
GE.BNDI.BHZ. 2021-05-01T01:35:28.62 10.0 positive automatic P 197 44.0399 -1.09643 0.309822
IU.MAKZ.BHZ.00 2021-05-01T01:35:28.90 10.0 positive automatic P 301 43.8241 0.808669 0.683367
IN.SHL.HHZ. 2021-05-01T01:35:26.18 10.0 positive automatic P 268 43.6243 -0.198582 0.601556
GE.LUWI.BHZ. 2021-05-01T01:35:18.12 10.0 positive automatic P 208 42.8926 -2.36198 0.67631
GE.SANI.BHZ. 2021-05-01T01:35:17.52 10.0 positive automatic P 204 42.7289 -1.6403 0.695454
GE.FAKI.BHZ. 2021-05-01T01:35:12.02 10.0 positive automatic P 194 41.9756 -1.04374 0.647841
IU.CHTO.BHZ.00 2021-05-01T01:35:11.77 10.0 positive automatic P 255 41.7838 0.220675 0.658292
RM.DLV.BHZ. 2021-05-01T01:35:05.27 10.0 positive automatic pP 237 39.5094 -3.98759 0
GE.GENI.BHZ. 2021-05-01T01:35:02.22 10.0 positive automatic P 182 40.7485 -0.773728 0.338208
AK.TNA.BHZ. 2021-05-01T01:34:55.81 10.0 positive automatic P 30 39.6621 1.79566 0.768313
MY.KKM.BHZ. 2021-05-01T01:34:53.62 10.0 positive automatic P 222 39.555 0.365339 0.675354
GE.TNTI.BHZ. 2021-05-01T01:34:52.97 10.0 positive automatic P 203 39.6194 -0.683777 0.720209
II.KWJN.BHZ.00 2021-05-01T01:34:33.97 10.0 negative automatic P 134 37.0154 2.18392 0.37191
RM.SLV.BHZ. 2021-05-01T01:34:28.02 10.0 positive automatic P 254 36.5415 0.15197 0.778261
IU.MIDW.BHZ.00 2021-05-01T01:34:19.90 10.0 negative automatic P 94 35.3351 2.44262 0.3876
IU.TIXI.BHZ.00 2021-05-01T01:34:06.32 10.0 negative automatic P 353 34.1398 -0.827219 0.864416
IU.BILL.BHZ.00 2021-05-01T01:33:55.37 10.0 positive automatic P 17 32.8946 -0.998946 0.890435
IU.ADK.BHZ.00 2021-05-01T01:33:50.32 10.0 negative automatic P 51 31.9044 2.64815 0.92238
II.TLY.BHZ.00 2021-05-01T01:33:28.87 10.0 positive automatic P 310 29.7285 0.29637 0.97561
IU.WAKE.BHZ.00 2021-05-01T01:33:20.07 10.0 negative automatic P 124 28.6933 0.769846 0.43956
AT.SMY.BHZ. 2021-05-01T01:33:06.76 10.0 positive automatic pP 46 26.6637 5.57574 0.328947
IU.ULN.BHZ.00 2021-05-01T01:33:02.67 10.0 positive automatic P 302 26.8836 -0.761082 0.833333
IU.YAK.BHZ.00 2021-05-01T01:32:44.62 10.0 positive automatic P 347 25.0208 -1.71443 0.869565
IU.GUMO.BHZ.00 2021-05-01T01:32:41.32 10.0 negative automatic P 173 24.7004 -2.1191 0.43956
IU.MA2.BHZ.00 2021-05-01T01:32:18.37 10.0 positive automatic P 12 22.2063 -1.06987 0.952381
IU.TATO.BHZ.00 2021-05-01T01:32:10.32 10.0 positive automatic P 238 21.5982 -2.61913 0.615385
JP.YOJ.BHZ. 2021-05-01T01:32:01.85 10.0 positive automatic P 235 20.9547 -4.16931 0.43956
IU.PET.BHZ.00 2021-05-01T01:31:43.72 10.0 positive automatic P 33 18.9293 -0.338132 0.43956
JP.JOW.BHZ. 2021-05-01T01:31:06.70 10.0 positive automatic P 229 15.9746 -2.43431 0.769231
JP.JMZ.BHZ. 2021-05-01T01:30:57.80 10.0 positive automatic P 219 15.1705 -1.07612 0.740741
IU.INCN.BHZ.00 2021-05-01T01:30:18.92 10.0 positive automatic P 272 11.9325 3.17224 0.952381
JP.JSU.BHZ. 2021-05-01T01:30:09.65 10.0 positive automatic P 238 11.3626 1.61533 0.930233
JP.JTU.BHZ. 2021-05-01T01:29:59.30 10.0 positive automatic P 254 10.5526 2.37301 0.952381
IU.YSS.BHZ.00 2021-05-01T01:29:31.50 10.0 positive automatic P 5 8.859 -2.31004 0.888889
JP.JMN.BHZ. 2021-05-01T01:29:19.05 10.0 negative automatic P 238 7.7227 0.703996 0.952381
JP.JKA.BHZ. 2021-05-01T01:28:52.60 10.0 positive automatic S 12 3.0609 2.84762 0
JP.JHJ2.BHZ. 2021-05-01T01:28:43.40 10.0 negative automatic P 198 5.2505 -1.04823 0.909091
G.INU.BHZ.00 2021-05-01T01:28:37.56 10.0 negative automatic P 235 4.6763 0.956734 0.909091
JP.JSG.BHZ. 2021-05-01T01:28:35.65 10.0 positive automatic P 221 4.4761 1.79221 0.909091
JP.JGF.BHZ. 2021-05-01T01:28:32.80 10.0 negative automatic P 235 4.3116 1.10918 0.97561
II.ERM.BHZ.00 2021-05-01T01:28:25.12 10.0 negative automatic P 15 4.0349 -2.69861 0.909091
IU.MAJO.BHZ.00 2021-05-01T01:28:17.12 10.0 negative automatic P 242 3.2147 0.443445 0.952381
JP.JTM.BHZ. 2021-05-01T01:28:08.05 10.0 negative automatic P 349 2.7051 -1.62909 0.952381
JP.JSD.BHZ. 2021-05-01T01:28:08.95 10.0 positive automatic P 269 2.7279 -1.04389 0.930233
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