Earthquake with magnitude of mb 4.5 on date 19-10-2016 and time 23:23:57 (Italy) in region Greece [Land]

A magnitude mb 4.5 earthquake occured in region: Greece [Land], on

  • 19-10-2016 21:23:57 (UTC)
  • 19-10-2016 23:23:57 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.77, 20.58 at 11 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
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 mb 4.5
Mwp 4.6
2016-10-19
21:23:57
39.77 20.58 11 2016-10-20
14:41:48
Sala Sismica INGV-Roma 30397351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-19 21:23:57
Latitude 39.77
Longitude 20.58
Depth (km) 11 (from location)
Evaluation mode of Origin automatic
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV-A
Event type earthquake
Origin ID 30397351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1534
Semi-minor axis of confidence ellipse (meter) 567
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 24
Circular confidence region, given by single value of horizontal uncertainty (meter) 1310.9
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91.4582
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 1.23249
Epicentral distance of station closest to the epicenter (degree) 0.60808
Epicentral distance of station farthest from the epicenter (degree) 22.15412
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitudes information

Mwp:4.6

Field Value
Value 4.6
Uncertainty 0.1
Num. used stations 9
Type of magnitude Mwp
Reference to an origin 30397351
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2016-10-20 14:41:48

mb:4.5

Field Value
Value 4.5
Uncertainty 0.2
Num. used stations 18
Type of magnitude mb
Reference to an origin 30397351
Agency INGV
Autore early-est_ee1.1.9
Time of creation (UTC) 2016-10-20 14:41:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
G.ECH.BHZ.00 2016-10-19T21:29:18.35 10.0 positive automatic S 316 12.7962 -3.73951 0
PM.PVAQ.BHZ. 2016-10-19T21:28:52.67 10.0 positive automatic P 273 22.1541 -0.958758 0.909091
II.ESK.BHZ.00 2016-10-19T21:28:52.82 10.0 positive automatic P 322 22.1405 -0.66541 0.952381
IU.PAB.BHZ.00 2016-10-19T21:28:21.97 10.0 positive automatic P 277 19.1337 0.925621 0.930233
G.ECH.BHZ.00 2016-10-19T21:26:58.10 10.0 positive automatic P 316 12.7962 -1.63261 0.888889
II.BFO.BHZ.00 2016-10-19T21:26:51.07 10.0 positive automatic P 318 12.2527 -1.23735 0.952381
MN.BNI.BHZ. 2016-10-19T21:26:44.97 10.0 positive automatic P 302 11.5235 2.49227 0.869565
OE.DAVA.BHZ. 2016-10-19T21:26:33.33 10.0 positive automatic P 318 10.7842 0.94027 0.97561
IV.MONC.BHZ. 2016-10-19T21:26:32.83 10.0 positive automatic P 304 10.7249 1.43735 0.930233
CZ.KHC.BHZ. 2016-10-19T21:26:29.12 10.0 positive automatic P 334 10.601 -0.608742 0.869565
IV.SALO.BHZ. 2016-10-19T21:26:12.04 10.0 positive automatic P 312 9.4136 -1.40818 0.952381
OE.KBA.BHZ. 2016-10-19T21:26:06.79 10.0 negative automatic P 327 8.9935 -1.08744 0.816327
MN.VLC.BHZ. 2016-10-19T21:26:04.90 10.0 positive automatic P 303 8.751 0.551461 0.909091
IV.PTCC.BHZ. 2016-10-19T21:25:59.15 10.0 negative automatic P 324 8.4728 -1.41483 0.869565
OE.ARSA.BHZ. 2016-10-19T21:25:57.11 10.0 positive automatic P 336 8.3269 -1.43002 0.869565
IV.MGAB.BHZ. 2016-10-19T21:25:42.44 10.0 positive automatic P 299 7.089 0.890518 0.930233
MN.AQU.BHZ. 2016-10-19T21:25:27.20 10.0 positive automatic P 298 5.9945 0.663502 0.869565
MN.BLY.BHZ. 2016-10-19T21:25:20.59 10.0 positive automatic P 334 5.5764 -0.133809 0.952381
MN.IDI.BHZ. 2016-10-19T21:25:19.96 10.0 positive automatic P 141 5.6334 -1.62727 0.97561
KO.DKL.BHZ. 2016-10-19T21:25:14.20 10.0 negative automatic P 96 4.9321 2.37394 0.970874
MN.DIVS.BHZ. 2016-10-19T21:25:04.14 10.0 positive automatic P 354 4.3497 0.147118 0.930233
HL.RDO.HHZ. 2016-10-19T21:24:58.50 10.0 positive automatic P 68 4.0099 -0.665158 0.961538
MN.CEL.BHZ. 2016-10-19T21:24:58.10 10.0 positive automatic P 249 3.9434 -0.248293 0.930233
MN.VTS.BHZ. 2016-10-19T21:24:52.31 10.0 negative automatic P 34 3.4763 0.245419 0.952381
MN.TIP.BHZ. 2016-10-19T21:24:45.15 10.0 positive automatic P 260 3.0109 -0.390498 0.930233
MN.PDG.BHZ. 2016-10-19T21:24:43.65 10.0 positive automatic P 340 2.8396 0.588699 0.952381
HL.ITM.HHZ. 2016-10-19T21:24:42.78 10.0 positive automatic P 158 2.7963 0.248743 0.966184
MN.TIR.BHZ. 2016-10-19T21:24:28.70 10.0 positive automatic P 341 1.6689 1.70042 0.97561
HL.KEK.HHZ. 2016-10-19T21:24:09.59 10.0 negative automatic P 265 0.6081 -0.00904361 0.985222
TDMT - Time Domain Moment Tensor

TDMT details

Field Value
Magnitude4.3
Scalar Moment3.70356E+22 dyne-cm
Computed depth15 km
QualityBb
Variance Reduction48.69%
Double Couple53%
CLVD47%
ISO0%
Model usedCIA
Modeautomatic
Statuspreliminary

Moment Tensor Components

Component Value
Mrr2.00787E+22
Mtt-1.51248E+22
Mpp-4.9539E+21
Mrt5.0361E+21
Mrp1.02404E+22
Mtp3.14159E+22

Nodal Planes

Name Strike Dip Rake
PN134663145
PN2945932

Focal Mechanism

Focal Mechanism

psmeca (GMT documentation)

20.5835 39.7705 15 346 63 145 94 59 32 3.70356 22 21.0835 40.2705

TDMT references

More info and references

Station Distribution

Station Distribution

TDMT station details

Sta Dist Azi V R zcor
THL 124.9 100.1 79.9% 104
EVR 142 131.5 39.33% 109
KLMT 327.2 156.3 25.19% 129
KEF3 175.2 186.8 46.99% 110
KEK 67.8 264.8 87.88% 100
MESG 249.9 292.2 63.57% 120
TIR 185.4 341 62.2% 117
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