Earthquake with magnitude of ML 3.8 on date 13-09-2013 and time 23:34:33 (Italy) in region Mar Ionio Meridionale (MARE)

A magnitude ML 3.8 earthquake occured in region: Mar Ionio Meridionale (MARE), on

  • 13-09-2013 21:34:33 (UTC)
  • 13-09-2013 23:34:33 (UTC +02:00) Italian time
  • 14-09-2013 00:34:33 (UTC +03:00) local time in the region of the earthquake (Europe/Athens)

and geographic coordinates (lat, lon) 37.1870, 20.1450 at 101 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Bulletin
Rev1000
ML 3.8 2013-09-13
21:34:33
37.187 20.1448 101 2015-01-20
11:28:57
Bollettino Sismico Italiano INGV 6279291
Reviewed
Rev100
ML 3.7 2013-09-13
21:34:30
37.216 20.144 192 2014-10-21
12:08:56
Sala Sismica INGV-Roma 4486161
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-09-13 21:34:33 ± 0.3
Latitude 37.1870 ± 0.0387
Longitude 20.1448 ± 0.0226
Depth (km) 101 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 6279291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 4006
Semi-minor axis of confidence ellipse (meter) 1858
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 14
Circular confidence region, given by single value of horizontal uncertainty (meter) 4010.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 331
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 3.18540
Epicentral distance of station farthest from the epicenter (degree) 4.50201
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:3.8

Field Value
Value 3.8
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 6279291
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:28:46

ML:3.7

Field Value
Value 3.7
Uncertainty 0.3
Num. used stations 3
Type of magnitude ML
Reference to an origin 4486161
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-09-13 21:51:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GALF.HHZ. 2013-09-13T21:36:28.20 0.3 undecidable manual S 278 494.5272 98 0.19 60
IV.HVZN.HHZ. 2013-09-13T21:36:24.70 0.3 undecidable manual S 272 479.7531 98 -0.15 64
IV.HMDC.HHZ. 2013-09-13T21:36:23.60 0.3 undecidable manual S 269 475.1688 98 -0.27 63
IV.MUCR.HHZ. 2013-09-13T21:36:22.60 0.3 undecidable manual S 283 472.6713 98 -0.73 51
IV.HPAC.HHZ. 2013-09-13T21:36:20.20 0.3 undecidable manual S 265 455.8992 99 0.45 58
IV.SSY.HHZ. 2013-09-13T21:36:18.30 0.3 undecidable manual S 271 448.218 99 0.18 66
IV.HAVL.HHZ. 2013-09-13T21:36:17.70 0.3 undecidable manual S 268 445.221 99 0.22 65
IV.GMB.BHZ. 2013-09-13T21:36:06.60 0.3 undecidable manual S 287 394.1055 100 -0.03 75
IV.HBSP.HHZ. 2013-09-13T21:35:40.09 0.6 negative manual P 271 499.722 98 -0.04 41
IV.GALF.HHZ. 2013-09-13T21:35:39.16 0.1 undecidable manual P 278 494.5272 98 -0.34 77
IV.HMDC.HHZ. 2013-09-13T21:35:37.38 0.6 undecidable manual P 269 475.1688 98 0.28 41
IV.HVZN.HHZ. 2013-09-13T21:35:37.56 0.3 negative manual P 272 479.7531 98 -0.11 64
IV.MUCR.HHZ. 2013-09-13T21:35:36.17 0.1 undecidable manual P 283 472.6713 98 -0.63 73
IV.HPAC.HHZ. 2013-09-13T21:35:35.32 0.6 positive manual P 265 455.8992 99 0.59 38
IV.NOV.HHE. 2013-09-13T21:35:34.51 0.3 undecidable manual P 284 449.8053 99 0.53 63
IV.SSY.HHZ. 2013-09-13T21:35:33.37 0.6 positive manual P 271 448.218 99 -0.42 43
IV.AIO.HHE. 2013-09-13T21:35:33.29 0.3 undecidable manual P 283 440.3259 99 0.46 65
IV.HAVL.HHZ. 2013-09-13T21:35:33.18 0.6 positive manual P 268 445.221 99 -0.24 45
IV.MPNC.HHE. 2013-09-13T21:35:32.69 0.6 undecidable manual P 286 433.9434 99 0.65 42
IV.EPOZ.HHE. 2013-09-13T21:35:32.55 0.3 undecidable manual P 279 439.8264 99 -0.21 67
IV.HAGA.HHE. 2013-09-13T21:35:31.81 0.3 undecidable manual P 273 440.7255 99 -1.06 51
IV.AGST.EHE. 2013-09-13T21:35:31.20 0.3 undecidable manual P 273 434.4318 99 -0.89 56
IV.MSRU.HHE. 2013-09-13T21:35:31.41 0.3 undecidable manual P 288 423.8535 99 0.61 66
IV.JOPP.HHE. 2013-09-13T21:35:29.07 0.6 undecidable manual P 294 404.595 100 0.64 46
IV.GMB.BHZ. 2013-09-13T21:35:27.07 0.1 undecidable manual P 287 394.1055 100 -0.08 100
IV.SOI.EHE. 2013-09-13T21:35:24.79 0.3 undecidable manual P 287 372.4494 101 0.29 78
IV.PLAC.HHE. 2013-09-13T21:35:22.25 0.3 undecidable manual P 294 353.5794 101 0.05 82
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHN. ML:3.4 0.00006505 0.38 AML other m 2013-09-13T21:36:35.42
IV.GALF.HHE. ML:3.3 0.000053200000000000006 0.48 AML other m 2013-09-13T21:36:36.97
IV.HAVL.HHN. ML:3.8 0.000277 0.7 AML other m 2013-09-13T21:36:23.59
IV.HAVL.HHE. ML:3.7 0.00020899999999999998 0.82 AML other m 2013-09-13T21:36:26.56
IV.HMDC.HHN. ML:3.8 0.000219 0.82 AML other m 2013-09-13T21:36:31.57
IV.HMDC.HHE. ML:3.8 0.000214 1.58 AML other m 2013-09-13T21:36:30.86
IV.HVZN.HHN. ML:4.5 0.0010899999999999998 0.36 AML other m 2013-09-13T21:36:30.89
IV.HVZN.HHE. ML:4.5 0.000925 0.44 AML other m 2013-09-13T21:36:31.44
TDMT - Time Domain Moment Tensor
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