Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 31-10-2019 and time 16:35:49 (Italy) in region Mar Ionio Settentrionale (MARE)

A magnitude ML 2.5 earthquake occured in region: Mar Ionio Settentrionale (MARE), on

  • 31-10-2019 15:35:49 (UTC)
  • 31-10-2019 16:35:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.9380, 17.5190 at 28 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.

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Municipalities within 20 km from the epicenter

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Crotone (62178 inhabitants)
80 Km E of Catanzaro (90612 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 2.5 2019-10-31
15:35:49		 38.9378 17.5193 29 2020-02-28
16:42:14		 Bollettino Sismico Italiano INGV 74733421
Reviewed
Rev100 		ML 2.6 2019-10-31
15:35:49		 38.9182 17.5567 27 2019-10-31
15:49:08		 Sala Sismica INGV-Roma 73554991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-31 15:35:49 ± 0.17
Latitude 38.9378 ± 0.0090
Longitude 17.5193 ± 0.0127
Depth (km) 29 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74733421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1137
Semi-minor axis of confidence ellipse (meter) 890
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 301
Circular confidence region, given by single value of horizontal uncertainty (meter) 1140.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 224
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.54319
Epicentral distance of station farthest from the epicenter (degree) 1.92275
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:2.6

Field Value
Value 2.6
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 73554991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-31 15:49:08

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 74733421
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-17 08:23:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CET2.HHN. 2019-10-31T15:36:30.77 0.6 undecidable manual S 296 149.5392 54 -0.11 46
IV.JOPP.HHZ. 2019-10-31T15:36:29.98 0.6 undecidable manual S 256 145.9428 54 -0.13 46
MN.KEK.HHZ. 2019-10-31T15:36:27.66 3.0 negative manual P 213.4308 6.14 0
IV.PLAC.HHZ. 2019-10-31T15:36:21.65 0.6 undecidable manual S 240 108.114 100 0 51
IV.NOCI.HHN. 2019-10-31T15:36:20.91 0.6 undecidable manual P 349 208.9353 54 -0.04 34
IV.SIRI.HNE. 2019-10-31T15:36:19.52 1.0 undecidable manual P 315 197.4579 54 -0.01 18
IV.CELI.HHZ. 2019-10-31T15:36:19.60 0.6 undecidable manual S 301 101.0211 101 -0.19 51
OT.MASS.HHZ. 2019-10-31T15:36:18.36 0.3 undecidable manual P 350 190.7646 54 -0.33 54
IV.MESG.HHE. 2019-10-31T15:36:18.34 0.3 undecidable manual P 9 185.37 54 0.32 56
MN.CUC.HHE. 2019-10-31T15:36:18.59 0.3 undecidable manual P 309 187.0683 54 0.35 55
IV.MTTG.HHE. 2019-10-31T15:36:18.70 0.6 undecidable manual P 237 188.9664 54 0.23 37
OT.CGL1.HHN. 2019-10-31T15:36:18.59 0.6 undecidable manual P 360 189.7656 54 0.02 39
OT.TAR1.HHZ. 2019-10-31T15:36:16.94 1.0 undecidable manual P 354 177.2892 54 -0.07 20
IV.GRIS.HNE. 2019-10-31T15:36:16.03 0.1 undecidable manual P 302 168.4092 54 0.12 84
IV.SOI.EHN. 2019-10-31T15:36:15.26 1.0 undecidable manual P 233 159.3183 54 0.49 20
IV.ORI.HHZ. 2019-10-31T15:36:14.70 0.6 undecidable manual P 324 153.735 54 0.62 40
MN.CEL.HHZ. 2019-10-31T15:36:14.82 0.3 undecidable manual P 242 159.7179 54 -0.01 67
IV.JOPP.HHZ. 2019-10-31T15:36:13.06 0.3 undecidable manual P 256 145.9428 54 -0.06 70
IV.CET2.HHN. 2019-10-31T15:36:13.83 0.1 undecidable manual P 296 149.5392 54 0.26 89
IV.SALB.HHZ. 2019-10-31T15:36:12.44 0.3 undecidable manual P 316 144.8439 54 -0.53 63
MN.TIP.HHZ. 2019-10-31T15:36:12.69 0.6 undecidable manual S 292 70.7736 106 0.75 43
IV.TDS.HHN. 2019-10-31T15:36:10.64 1.0 undecidable manual P 309 129.2706 54 -0.4 23
IV.LADO.EHZ. 2019-10-31T15:36:09.51 0.6 undecidable manual S 310 60.2952 110 0.25 53
IV.CAR1.HHE. 2019-10-31T15:36:09.79 0.1 undecidable manual P 288 117.8931 54 0.16 98
IV.PLAC.HHZ. 2019-10-31T15:36:08.43 0.1 undecidable manual P 240 108.114 100 0.2 98
IV.SPS2.HHZ. 2019-10-31T15:36:07.97 0.6 undecidable manual P 291 108.9132 100 -0.38 48
IV.CELI.HHZ. 2019-10-31T15:36:06.84 0.1 undecidable manual P 301 101.0211 101 -0.32 98
IV.GRI.EHZ. 2019-10-31T15:36:05.97 0.3 undecidable manual P 263 95.8263 102 -0.4 73
MN.TIP.HHZ. 2019-10-31T15:36:02.11 0.1 undecidable manual P 292 70.7736 106 -0.52 100
IV.LADO.EHZ. 2019-10-31T15:36:01.29 0.3 undecidable manual P 310 60.2952 110 0.21 80
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.TIP.HNN. ML:2.5 0.00044874745 0.7808 AML other m 2019-10-31T15:36:20.43
MN.TIP.HNE. ML:2.3 0.00029400000000000004 0.56 AML other m 2019-10-31T15:36:22.58
MN.TIP.HHE. ML:2.3 0.00027714130000000006 0.5376 AML other m 2019-10-31T15:36:22.31
IV.LADO.EHE. ML:1.7 0.000096699855 0.2688 AML other m 2019-10-31T15:36:14.78
IV.LADO.EHN. ML:1.4 0.000045678375 0.3456 AML other m 2019-10-31T15:36:15.44
IV.GRI.EHE. ML:2.5 0.00034967335 0.8064 AML other m 2019-10-31T15:36:21.46
IV.GRI.EHN. ML:2.6 0.0004282881 0.7808 AML other m 2019-10-31T15:36:26.71
IV.CELI.HHN. ML:2.9 0.0007239562 0.9856 AML other m 2019-10-31T15:36:30.98
IV.CELI.HHE. ML:2.9 0.00083496115 0.96 AML other m 2019-10-31T15:36:27.71
IV.CELI.HNN. ML:2.5 0.0002917194 0.9856 AML other m 2019-10-31T15:36:30.98
IV.CELI.HNE. ML:2.6 0.00032653704999999997 1.0368 AML other m 2019-10-31T15:36:35.20
IV.SPS2.HHN. ML:2.1 0.000109501975 0.3584 AML other m 2019-10-31T15:36:28.51
IV.SPS2.HHE. ML:2.2 0.00012279285 0.6144 AML other m 2019-10-31T15:36:35.69
IV.PLAC.HHE. ML:2.7 0.0004195455 0.5504 AML other m 2019-10-31T15:36:28.90
IV.PLAC.HNE. ML:2.7 0.000408584 0.6912 AML other m 2019-10-31T15:36:25.93
IV.PLAC.HHN. ML:2.7 0.0004186147 0.6912 AML other m 2019-10-31T15:36:25.93
IV.PLAC.HNN. ML:2.7 0.00038382250000000003 0.5248 AML other m 2019-10-31T15:36:28.90
IV.JOPP.HHE. ML:2.7 0.0002334753 0.4864 AML other m 2019-10-31T15:36:31.24
IV.JOPP.HHN. ML:2.4 0.00014713455000000002 0.5248 AML other m 2019-10-31T15:36:33.77
MN.CEL.HHE. ML:2.5 0.00015461705 0.704 AML other m 2019-10-31T15:36:52.05
MN.CEL.HNN. ML:2.4 0.00011519455 0.7552 AML other m 2019-10-31T15:36:44.41
MN.CEL.HNE. ML:2.6 0.00016717148500000002 0.6784 AML other m 2019-10-31T15:36:52.06
MN.CEL.HHN. ML:2.4 0.0001243389 0.7552 AML other m 2019-10-31T15:36:44.05
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
Waveforms Seismic signals in miniseed + resp format Download