Earthquake with magnitude of ML 3.1 on date 20-07-2015 and time 20:50:47 (Italy) in region Costa Greca Ionica (GRECIA)

A magnitude ML 3.1 earthquake occured in region: Costa Greca Ionica (GRECIA), on

  • 20-07-2015 18:50:47 (UTC)
  • 20-07-2015 20:50:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.8470, 20.4440 at 22 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 3.1 2015-07-20
18:50:47
38.8472 20.4443 22 2016-01-08
08:53:02
Bollettino Sismico Italiano INGV 20839931
Reviewed
Rev100
ML 3.1 2015-07-20
18:50:46
38.8412 20.6193 39 2015-07-20
19:24:27
Sala Sismica INGV-Roma 20402591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-07-20 18:50:47 ± 0.1
Latitude 38.8472 ± 0.0072
Longitude 20.4443 ± 0.0092
Depth (km) 22 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 20839931

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 919
Semi-minor axis of confidence ellipse (meter) 223
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 228
Circular confidence region, given by single value of horizontal uncertainty (meter) 920.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.67899
Epicentral distance of station farthest from the epicenter (degree) 4.97865
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:3.1

Field Value
Value 3.1
Uncertainty 0.3
Num. used stations 23
Type of magnitude ML
Reference to an origin 20839931
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-08-11 08:40:21

ML:3.1

Field Value
Value 3.1
Uncertainty 0.3
Num. used stations 27
Type of magnitude ML
Reference to an origin 20402591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-07-20 19:24:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MRVN.HHZ. 2015-07-20T18:52:30.56 0.3 undecidable manual S 306 436.8294 54 -0.4 18
IV.AMUR.HHZ. 2015-07-20T18:52:23.44 0.3 undecidable manual S 306 398.9007 54 0.66 17
IV.MIGL.HHZ. 2015-07-20T18:52:21.57 0.3 undecidable manual S 301 393.2064 54 0 20
IV.SALB.HHZ. 2015-07-20T18:52:16.90 0.6 undecidable manual S 289 369.5523 54 0.43 13
IV.NOCI.HHZ. 2015-07-20T18:52:14.31 0.3 undecidable manual S 308 359.5734 54 -0.01 21
IV.CELI.HHZ. 2015-07-20T18:52:10.48 0.6 undecidable manual S 282 344.1999 54 -0.52 13
IV.SERS.HHZ. 2015-07-20T18:52:05.31 0.3 undecidable manual S 275 324.7305 54 -1.48 12
IV.TREM.HHZ. 2015-07-20T18:52:01.17 1.0 positive manual P 313 552.6246 54 -0.27 5
IV.MELA.HHZ. 2015-07-20T18:52:01.46 0.6 positive manual P 307 550.5378 54 0.28 10
IV.SGRT.HHZ. 2015-07-20T18:51:56.48 0.1 undecidable manual P 311 511.9986 54 0.09 23
IV.CAFE.HHZ. 2015-07-20T18:51:56.37 0.6 undecidable manual P 300 504.717 54 0.89 9
IV.MUCR.HHZ. 2015-07-20T18:51:54.28 0.6 undecidable manual P 261 492.0408 54 0.38 11
IV.MSAG.HHZ. 2015-07-20T18:51:54.42 0.3 undecidable manual P 311 498.2235 54 -0.26 17
IV.IVPL.HHZ. 2015-07-20T18:51:52.21 0.6 undecidable manual P 265 476.4675 54 0.25 12
IV.MPNC.HHZ. 2015-07-20T18:51:49.14 0.3 undecidable manual P 262 448.8174 54 0.62 16
IV.PALZ.HHZ. 2015-07-20T18:51:48.63 1.0 positive manual P 303 446.9193 54 0.34 6
IV.ACER.HHZ. 2015-07-20T18:51:47.83 0.6 negative manual P 301 439.7265 54 0.43 12
IV.MRVN.HHZ. 2015-07-20T18:51:47.01 0.6 positive manual P 306 436.8294 54 -0.03 13
IV.MSRU.HHZ. 2015-07-20T18:51:46.31 0.6 undecidable manual P 263 433.0443 54 -0.25 12
IV.MCEL.HHZ. 2015-07-20T18:51:46.29 0.6 undecidable manual P 294 429.348 54 0.18 12
TV.AG51.EHZ. 2015-07-20T18:51:44.87 0.6 undecidable manual P 294 423.9534 54 -0.56 11
IV.SCTE.HHZ. 2015-07-20T18:51:43.50 0.6 undecidable manual S 309 217.116 54 -0.11 30
IV.JOPP.HHZ. 2015-07-20T18:51:42.04 0.6 positive manual P 268 395.4042 54 0.16 13
IV.AMUR.HHZ. 2015-07-20T18:51:42.17 0.3 negative manual P 306 398.9007 54 -0.14 19
IV.MIGL.HHZ. 2015-07-20T18:51:41.60 0.3 positive manual P 301 393.2064 54 -0.01 20
IV.SALB.HHZ. 2015-07-20T18:51:39.16 0.6 undecidable manual P 289 369.5523 54 0.49 12
IV.NOCI.HHZ. 2015-07-20T18:51:37.33 0.3 positive manual P 308 359.5734 54 -0.1 20
IV.CELI.HHZ. 2015-07-20T18:51:36.16 1.0 undecidable manual P 282 344.1999 54 0.65 6
IV.PLAC.HHZ. 2015-07-20T18:51:36.42 0.3 negative manual P 264 349.7832 54 0.21 20
IV.SERS.HHZ. 2015-07-20T18:51:33.50 0.6 positive manual P 275 324.7305 54 0.42 13
HL.KLV.HHE. 2015-07-20T18:51:33.65 0.6 undecidable manual S 120 172.9935 54 -0.44 37
HL.THL.HHE. 2015-07-20T18:51:30.86 0.6 undecidable manual S 59 156.7209 54 0.28 40
AC.SRN.HHE. 2015-07-20T18:51:21.45 0.3 undecidable manual S 342 120.6903 96 -0.4 65
IV.SCTE.HHZ. 2015-07-20T18:51:19.69 1.0 negative manual P 309 217.116 54 0 16
HL.KEK.HHE. 2015-07-20T18:51:18.63 0.3 undecidable manual S 330 111 96 -0.63 61
HL.KLV.HHE. 2015-07-20T18:51:13.61 0.3 undecidable manual P 120 172.9935 54 -0.59 52
HL.THL.HHE. 2015-07-20T18:51:12.44 0.3 undecidable manual P 59 156.7209 54 0.26 61
HL.VLS.HHZ. 2015-07-20T18:51:10.00 0.3 undecidable manual S 170 75.369 100 0.15 75
AC.SRN.HHE. 2015-07-20T18:51:07.96 0.6 undecidable manual P 342 120.6903 96 0.83 38
HL.KEK.HHE. 2015-07-20T18:51:06.67 0.6 undecidable manual P 330 111 96 1.04 35
HL.VLS.HHZ. 2015-07-20T18:51:00.02 0.1 negative manual P 170 75.369 100 -0.18 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ACER.HHE. ML:3.1 0.00005975 0.5 AML other m 2015-07-20T18:53:04.62
IV.ACER.HHN. ML:3.2 0.00006275 0.48 AML other m 2015-07-20T18:53:09.06
IV.AMUR.HHN. ML:2.9 0.000046450000000000004 0.34 AML other m 2015-07-20T18:52:25.90
IV.AMUR.HHE. ML:2.9 0.00004995 1.22 AML other m 2015-07-20T18:52:26.69
IV.CAFE.HHN. ML:2.8 0.000019699999999999998 0.94 AML other m 2015-07-20T18:52:53.78
IV.CAFE.HHE. ML:3.0 0.000028749999999999997 1.58 AML other m 2015-07-20T18:53:28.16
IV.CELI.HHE. ML:2.7 0.0000413 0.44 AML other m 2015-07-20T18:52:15.61
IV.CELI.HHN. ML:2.7 0.00004635 1.16 AML other m 2015-07-20T18:52:16.31
IV.IVPL.HHN. ML:3.8 0.00022649999999999998 1.02 AML other m 2015-07-20T18:52:41.41
IV.IVPL.HHE. ML:3.8 0.00022749999999999997 1.58 AML other m 2015-07-20T18:52:43.73
IV.JOPP.HHN. ML:3.1 0.00007955 0.64 AML other m 2015-07-20T18:52:24.04
IV.JOPP.HHE. ML:3.0 0.00005624999999999999 0.96 AML other m 2015-07-20T18:52:23.91
IV.MCEL.HHN. ML:2.9 0.00003315 1.22 AML other m 2015-07-20T18:52:35.61
IV.MCEL.HHE. ML:2.9 0.00003594999999999999 0.28 AML other m 2015-07-20T18:52:37.17
IV.MELA.HHN. ML:3.6 0.0000805 0.34 AML other m 2015-07-20T18:53:10.99
IV.MELA.HHE. ML:3.7 0.0001105 0.32 AML other m 2015-07-20T18:53:09.96
IV.MIGL.HHE. ML:3.3 0.000123 1.06 AML other m 2015-07-20T18:52:26.36
IV.MIGL.HHN. ML:3.3 0.00011650000000000001 1.34 AML other m 2015-07-20T18:52:25.78
IV.MNO.SHE. ML:0.0 0.0000488 1.52 AML other m 2015-07-20T18:53:27.13
IV.MNO.SHN. ML:0.0 0.00004299999999999998 1.12 AML other m 2015-07-20T18:52:52.67
IV.MPNC.HHE. ML:3.4 0.00011599999999999999 0.64 AML other m 2015-07-20T18:52:35.25
IV.MPNC.HHN. ML:3.4 0.0001002 0.48 AML other m 2015-07-20T18:52:38.42
IV.MRVN.HHN. ML:2.9 0.00003655 0.86 AML other m 2015-07-20T18:52:33.76
IV.MRVN.HHE. ML:3.0 0.000038 0.98 AML other m 2015-07-20T18:52:32.97
IV.MSAG.HHE. ML:3.6 0.0001083 0.18 AML other m 2015-07-20T18:52:45.87
IV.MSAG.HHN. ML:3.9 0.0002315 0.14 AML other m 2015-07-20T18:52:46.28
IV.MSRU.HHE. ML:3.3 0.0000906 0.98 AML other m 2015-07-20T18:52:33.39
IV.MSRU.HHN. ML:3.1 0.000055150000000000006 0.26 AML other m 2015-07-20T18:52:32.10
IV.MUCR.HHN. ML:3.1 0.0000355 1.28 AML other m 2015-07-20T18:52:46.24
IV.MUCR.HHE. ML:3.1 0.0000405 1.56 AML other m 2015-07-20T18:52:45.05
IV.NOCI.HHE. ML:3.1 0.000107 0.76 AML other m 2015-07-20T18:52:16.25
IV.NOCI.HHN. ML:3.2 0.00013700000000000002 0.32 AML other m 2015-07-20T18:52:16.20
IV.PLAC.HHE. ML:2.8 0.00004965 0.22 AML other m 2015-07-20T18:52:15.27
IV.PLAC.HHN. ML:2.7 0.00004285 1.32 AML other m 2015-07-20T18:52:17.76
IV.SALB.HHN. ML:2.6 0.000030150000000000004 0.58 AML other m 2015-07-20T18:52:20.25
IV.SALB.HHE. ML:2.8 0.0000382 0.22 AML other m 2015-07-20T18:52:23.54
IV.SCTE.HHE. ML:3.1 0.000345 0.48 AML other m 2015-07-20T18:51:44.44
IV.SCTE.HHN. ML:3.1 0.0003255 0.88 AML other m 2015-07-20T18:51:44.29
IV.SERS.HHE. ML:2.5 0.00003715 0.32 AML other m 2015-07-20T18:52:09.47
IV.SERS.HHN. ML:2.5 0.00003455 1.48 AML other m 2015-07-20T18:52:09.94
IV.SGRT.HHE. ML:3.6 0.00010674999999999999 0.12 AML other m 2015-07-20T18:52:49.17
IV.SGRT.HHN. ML:3.7 0.00012754999999999998 0.7 AML other m 2015-07-20T18:52:49.02
IV.TREM.HHE. ML:3.6 0.0000731 0.94 AML other m 2015-07-20T18:52:26.51
IV.TREM.HHN. ML:3.7 0.00009805 0.96 AML other m 2015-07-20T18:52:23.42
HL.VLS.HHN. ML:2.7 0.0007865 0.6 AML other m 2015-07-20T18:51:10.87
HL.VLS.HHE. ML:2.8 0.0009364999999999999 1.4 AML other m 2015-07-20T18:51:11.70
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