Earthquake with magnitude of mb 5.1 on date 24-07-2021 and time 04:07:40 (Italy) in region Crete, Greece [Land: Greece]

A magnitude mb 5.1 earthquake occured in region: Crete, Greece [Land: Greece], on

  • 24-07-2021 02:07:40 (UTC)
  • 24-07-2021 04:07:40 (UTC +02:00) Italian time
  • 24-07-2021 05:07:40 (UTC +03:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 35.163, 25.233 at 20 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
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 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 5.1
Mwp 4.8
2021-07-24
02:07:40
35.1633 25.2334 20 2021-07-24
02:44:02
Sala Sismica INGV-Roma 93132121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-07-24 02:07:40
Latitude 35.1633
Longitude 25.2334
Depth (km) 20 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 93132121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3198
Semi-minor axis of confidence ellipse (meter) 892
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 189
Circular confidence region, given by single value of horizontal uncertainty (meter) 2677.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58.4987
Number of associated phases, regardless of their use for origin computation 82
Number of defining phases 82
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.44263
Epicentral distance of station closest to the epicenter (degree) 1.61824
Epicentral distance of station farthest from the epicenter (degree) 65.60441
Number of stations at which the event was observed 77
Number of stations from which data was used for origin computation 77
Magnitudes information

Mwp:4.8

Field Value
Value 4.8
Uncertainty 0.1
Num. used stations 5
Type of magnitude Mwp
Reference to an origin 93132121
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-07-24 02:44:02

mb:5.1

Field Value
Value 5.1
Uncertainty 0.2
Num. used stations 59
Type of magnitude mb
Reference to an origin 93132121
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2021-07-24 02:44:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IU.YAK.BHZ.00 2021-07-24T02:18:22.37 10.0 negative automatic P 30 65.6044 -0.0595608 0.327309
GT.BOSA.BHZ.00 2021-07-24T02:18:08.73 10.0 positive automatic P 180 63.7746 -1.96228 0.359148
GT.LBTB.BHZ.00 2021-07-24T02:17:45.63 10.0 negative automatic P 180 60.1767 -0.866441 0.385886
II.TLY.BHZ.00 2021-07-24T02:17:20.87 10.0 negative automatic P 47 56.3781 1.02564 0.433845
DK.NEEM.BHZ.10 2021-07-24T02:16:53.80 10.0 positive automatic P 345 52.8261 -0.594344 0.508322
GE.SUMG.BHZ. 2021-07-24T02:16:24.55 10.0 positive automatic P 339 48.8527 -0.0436928 0.600631
DK.NOR.BHZ. 2021-07-24T02:16:22.15 10.0 positive automatic P 353 48.8057 -1.53147 0.573478
HT.AGG.HHZ. 2021-07-24T02:08:47.21 10.0 positive automatic P 330 4.4963 0.215529 0.990099
IU.MAKZ.BHZ.00 2021-07-24T02:15:41.57 10.0 negative automatic P 56 43.3859 0.470965 0.691662
II.KURK.BHZ.00 2021-07-24T02:15:21.47 10.0 negative automatic P 51 41.0185 -0.25459 0.679265
GT.DBIC.BHZ.00 2021-07-24T02:15:10.05 10.0 negative automatic P 231 39.6937 -0.696647 0.76229
II.AAK.BHZ.00 2021-07-24T02:15:02.27 10.0 negative automatic P 64 38.5005 1.24594 0.724726
II.SIMI.BHZ.00 2021-07-24T02:14:30.45 10.0 positive automatic P 71 34.842 0.872319 0.802315
II.ARTI.BHZ.00 2021-07-24T02:13:53.47 10.0 negative automatic P 36 30.8494 -1.26607 0.93417
II.UOSS.BHZ.00 2021-07-24T02:13:34.27 10.0 positive automatic P 102 28.5416 -0.014978 0.909091
II.ESK.BHZ.00 2021-07-24T02:13:28.77 10.0 positive automatic P 325 28.0366 -1.00609 0.909091
PM.PVAQ.BHZ. 2021-07-24T02:13:17.01 10.0 negative automatic P 285 26.5199 0.847527 0.869565
IU.KONO.BHZ.00 2021-07-24T02:13:14.42 10.0 positive automatic P 342 26.5188 -1.73113 0.97561
PM.PESTR.BHZ. 2021-07-24T02:13:14.66 10.0 positive automatic P 288 26.3246 0.228561 0.869565
GE.MTE.BHZ. 2021-07-24T02:13:14.80 10.0 negative automatic P 291 26.2712 0.7794 0.869565
GB.MCH1.BHZ. 2021-07-24T02:13:12.20 10.0 negative automatic P 319 26.1972 -1.05122 0.970874
IU.PAB.BHZ.00 2021-07-24T02:12:52.57 10.0 positive automatic P 289 23.8079 0.929787 0.952381
RD.MFF.BHZ. 2021-07-24T02:12:34.52 10.0 negative automatic P 309 22.1901 -0.353118 0.892857
II.OBN.BHZ.00 2021-07-24T02:12:27.17 10.0 negative automatic P 18 21.4291 0.459137 0.930233
GE.IBBN.BHZ. 2021-07-24T02:12:26.50 10.0 negative automatic P 329 21.1704 2.57551 0.930233
G.TAM.BHZ.00 2021-07-24T02:12:25.00 10.0 negative automatic P 239 21.1485 1.09684 0.816327
WM.CART.BHZ. 2021-07-24T02:12:24.87 10.0 negative automatic P 284 21.1911 0.74183 0.930233
II.RAYN.BHZ.00 2021-07-24T02:12:24.90 10.0 positive automatic P 118 21.0899 1.75402 0.941176
GE.RGN.BHZ. 2021-07-24T02:12:20.95 10.0 negative automatic P 341 21.0755 -1.93397 0.869565
GE.WLF.BHZ. 2021-07-24T02:12:12.60 10.0 positive automatic P 322 20.1032 0.212864 0.952381
RD.LOR.BHZ. 2021-07-24T02:12:10.70 10.0 positive automatic P 314 20.0131 -0.744286 0.961538
RD.MTLF.BHZ. 2021-07-24T02:12:07.08 10.0 positive automatic P 302 19.523 1.00521 0.980392
G.SSB.BHZ.00 2021-07-24T02:11:57.30 10.0 negative automatic P 309 18.6742 0.47242 0.909091
PL.SUW.BHZ. 2021-07-24T02:11:56.87 10.0 positive automatic P 356 18.903 -2.38063 0.952381
G.ECH.BHZ.00 2021-07-24T02:11:56.55 10.0 positive automatic P 320 18.6865 -0.391368 0.888889
II.BFO.BHZ.00 2021-07-24T02:11:50.82 10.0 positive automatic P 322 18.1522 -0.0326435 0.97561
GE.EIL.BHZ. 2021-07-24T02:11:47.00 10.0 positive automatic S 121 9.8644 -3.51149 0
IU.GRFO.BHZ.00 2021-07-24T02:11:46.32 10.0 positive automatic P 329 17.7694 0.210779 0.930233
MN.BNI.BHZ. 2021-07-24T02:11:41.40 10.0 positive automatic P 311 17.2298 1.80635 0.879121
PL.KSP.BHZ. 2021-07-24T02:11:36.65 10.0 positive automatic P 340 16.9577 0.651256 0.930233
OE.DAVA.BHZ. 2021-07-24T02:11:33.27 10.0 negative automatic P 321 16.6824 0.518203 0.930233
IV.MONC.BHZ. 2021-07-24T02:11:31.29 10.0 positive automatic P 312 16.4748 1.35487 0.952381
CZ.KHC.BHZ. 2021-07-24T02:11:29.55 10.0 positive automatic P 332 16.3813 0.77225 0.869565
IU.GNI.BHZ.00 2021-07-24T02:11:28.42 10.0 negative automatic P 66 16.1883 1.95529 0.754717
II.KIV.BHZ.00 2021-07-24T02:11:27.32 10.0 positive automatic P 51 16.0211 3.09151 0.930233
GE.SALP.BHZ. 2021-07-24T02:11:21.42 10.0 negative automatic S 108 8.8457 -4.15543 0
IU.KIEV.BHZ.00 2021-07-24T02:11:21.02 10.0 positive automatic P 9 15.8035 -0.244428 0.851064
GE.MORC.BHZ. 2021-07-24T02:11:19.55 10.0 positive automatic P 341 15.6547 0.114893 0.909091
IV.SALO.BHZ. 2021-07-24T02:11:19.20 10.0 negative automatic pP 318 15.2774 -5.51735 0
IV.PTCC.BHZ. 2021-07-24T02:11:19.20 10.0 positive automatic sP 325 14.365 2.26492 0
IV.BOB.BHZ. 2021-07-24T02:11:17.70 10.0 positive automatic P 313 15.3997 1.55642 0.952381
RD.PGF.BHZ. 2021-07-24T02:11:05.76 10.0 positive automatic P 305 14.6035 0.21492 0.934579
GE.PSZ.BHZ. 2021-07-24T02:10:49.40 10.0 negative automatic P 344 13.3574 0.883671 0.869565
IV.MGAB.BHZ. 2021-07-24T02:10:41.75 10.0 negative automatic P 311 12.7771 1.2281 0.930233
HU.KOVH.BHZ. 2021-07-24T02:10:30.00 10.0 positive automatic P 336 12.1801 -1.31347 0.930233
MN.AQU.BHZ. 2021-07-24T02:10:26.57 10.0 positive automatic P 312 11.6758 1.07694 0.740741
MN.BLY.BHZ. 2021-07-24T02:10:17.77 10.0 positive automatic P 330 11.386 -3.67627 0.869565
MN.BZS.BHZ. 2021-07-24T02:10:13.52 10.0 positive automatic P 346 10.8042 0.0349151 0.952381
MN.CLTB.BHZ. 2021-07-24T02:10:03.85 10.0 positive automatic P 288 9.9648 1.73277 0.97561
KO.GAZ.BHZ. 2021-07-24T02:10:00.52 10.0 positive automatic P 75 9.8672 -0.262143 0.943396
GE.TIRR.BHZ. 2021-07-24T02:09:59.40 10.0 negative automatic P 14 9.6078 2.32447 0.869565
GE.EIL.BHZ. 2021-07-24T02:09:58.40 10.0 positive automatic P 121 9.8644 -2.20887 0.930233
MN.CUC.BHZ. 2021-07-24T02:09:46.42 10.0 positive automatic P 306 8.8824 -0.800123 0.97561
GE.SALP.BHZ. 2021-07-24T02:09:43.80 10.0 negative automatic P 108 8.8457 -2.89426 0.909091
MN.WDD.BHZ. 2021-07-24T02:09:43.72 10.0 positive automatic P 278 8.7397 -1.44255 0.689655
GE.MATE.BHZ. 2021-07-24T02:09:42.40 10.0 negative automatic P 312 8.6744 -1.94916 0.754717
MN.PDG.BHZ. 2021-07-24T02:09:40.62 10.0 positive automatic P 329 8.6238 -2.95315 0.851064
MN.TIP.BHZ. 2021-07-24T02:09:31.52 10.0 positive automatic P 303 7.8517 -1.58979 0.952381
KO.MDUB.BHZ. 2021-07-24T02:09:25.40 10.0 negative automatic P 40 7.0934 2.64001 0.900901
GE.CSS.BHZ. 2021-07-24T02:09:14.60 10.0 positive automatic P 89 6.6291 -1.65894 0.930233
HL.RDO.HHZ. 2021-07-24T02:09:06.51 10.0 positive automatic P 2 5.9862 -0.869466 0.938967
HT.ALN.HHZ. 2021-07-24T02:09:02.98 10.0 negative automatic P 6 5.7571 -1.25487 0.985222
GE.ISP.BHZ.00 2021-07-24T02:08:54.65 10.0 positive automatic P 56 5.0152 0.442179 0.930233
KO.BALB.HHZ. 2021-07-24T02:08:54.05 10.0 negative automatic P 24 4.945 0.975258 0.925926
KO.DKL.BHZ. 2021-07-24T02:08:43.28 10.0 negative automatic P 18 4.1287 1.43943 0.326797
HL.ITM.HHZ. 2021-07-24T02:08:31.76 10.0 negative automatic P 308 3.3452 0.621268 0.990099
HL.ARG.HHZ. 2021-07-24T02:08:20.04 10.0 negative automatic P 65 2.5696 -0.383481 0.888889
GE.APE.BHZ. 2021-07-24T02:08:09.78 10.0 positive automatic P 7 1.9206 -1.80261 0.851064
GE.KARP.BHZ. 2021-07-24T02:08:06.94 10.0 positive automatic P 76 1.6182 -0.471195 0.97561
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