Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 21-10-2017 and time 05:24:05 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 2.2 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 21-10-2017 05:24:05 (UTC)
  • 21-10-2017 07:24:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.4220, 15.2200 at 143 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
39 Km NW of Messina (238439 inhabitants)
51 Km NW of Reggio di Calabria (183035 inhabitants)
90 Km N of Acireale (52622 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 2.2 2017-10-21
05:24:05		 38.422 15.2195 143 2018-09-04
09:07:56		 Bollettino Sismico Italiano INGV 51842041
Reviewed
Rev100 		ML 2.3 2017-10-21
05:24:06		 38.4227 15.1713 143 2017-10-21
05:35:38		 Sala Sismica INGV-Roma 51182791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-10-21 05:24:05 ± 0.17
Latitude 38.4220 ± 0.0108
Longitude 15.2195 ± 0.0103
Depth (km) 143 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 51842041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1181
Semi-minor axis of confidence ellipse (meter) 744
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 152
Circular confidence region, given by single value of horizontal uncertainty (meter) 1180.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 59
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.89577
Number of stations at which the event was observed 49
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 51842041
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-05-02 12:11:33

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 51182791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-10-21 05:35:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FOSV.EHZ. 2017-10-21T05:26:13.92 3.0 undecidable manual Sn -9.22 0
IV.RMP.HHZ. 2017-10-21T05:26:08.99 3.0 undecidable manual Sg 17.25 0
IV.CERT.HHZ. 2017-10-21T05:26:07.64 3.0 undecidable manual Sg 15.43 0
IV.CRND.HNZ. 2017-10-21T05:26:00.77 3.0 undecidable manual Pn 1.89 0
GU.RNCA.HHZ. 2017-10-21T05:25:59.52 3.0 positive manual Pn 2.09 0
IV.FIU.EHZ. 2017-10-21T05:25:48.78 3.0 positive manual Pn 3.05 0
IV.PP3.EHZ. 2017-10-21T05:25:34.06 3.0 negative manual Pg 11.66 0
IV.CRE.HHZ. 2017-10-21T05:25:30.14 3.0 negative manual Pn -1.15 0
IV.FOSV.EHZ. 2017-10-21T05:25:27.16 3.0 undecidable manual Pn 3.18 0
IV.T1299.EHZ. 2017-10-21T05:25:24.21 3.0 negative manual Pg 10.4 0
IV.VCEL.EHZ. 2017-10-21T05:25:23.96 3.0 undecidable manual Pg 14.93 0
IV.COLB.HHZ. 2017-10-21T05:25:16.68 3.0 undecidable manual Sn -3.02 0
IV.VIVA.HHZ. 2017-10-21T05:25:12.05 3.0 negative manual Pg 6.75 0
IV.RCAV.EHZ. 2017-10-21T05:25:09.59 3.0 undecidable manual Pn 4.03 0
IV.VAGA.HHZ. 2017-10-21T05:24:56.62 3.0 undecidable manual Pn 1.14 0
BA.PZUN.HHZ. 2017-10-21T05:24:52.96 3.0 positive manual Pg 8.1 0
IV.GRI.EHZ. 2017-10-21T05:24:47.86 0.6 undecidable manual S 67 113.0979 139 -0.62 37
IV.PLAC.HHZ. 2017-10-21T05:24:46.53 0.6 undecidable manual S 88 105.9162 141 -0.95 33
IV.LTRZ.EHZ. 2017-10-21T05:24:46.21 3.0 negative manual Pn -1.7 0
IV.SOI.EHZ. 2017-10-21T05:24:44.29 0.3 undecidable manual S 118 82.3509 148 -0.23 65
MN.CEL.HHZ. 2017-10-21T05:24:42.68 0.3 undecidable manual S 107 61.3941 155 0.32 65
IV.JOPP.HHZ. 2017-10-21T05:24:42.41 0.6 undecidable manual S 70 61.2942 155 0.05 46
IV.AIO.HHZ. 2017-10-21T05:24:41.52 0.6 undecidable manual S 179 50.0166 159 0.11 47
IV.MILZ.HHZ. 2017-10-21T05:24:40.00 0.6 undecidable manual S 176 16.7721 173 0.32 47
IV.MSRU.HHZ. 2017-10-21T05:24:40.43 0.6 undecidable manual S 125 30.6471 167 0.23 47
IV.IVPL.HHZ. 2017-10-21T05:24:39.83 1.0 undecidable manual S 256 21.4674 171 0.01 25
IV.CMPR.HHZ. 2017-10-21T05:24:39.93 0.6 undecidable manual P 2 210.4338 121 0.06 29
IV.MGR.HHZ. 2017-10-21T05:24:38.11 0.6 undecidable manual P 8 192.4629 123 0.15 31
IV.PIPA.HHZ. 2017-10-21T05:24:37.06 0.1 undecidable manual P 49 181.2852 125 0.25 65
IV.SALB.HHZ. 2017-10-21T05:24:37.86 0.6 undecidable manual P 31 188.2671 124 0.33 31
MN.CUC.HHE. 2017-10-21T05:24:36.60 0.6 undecidable manual P 16 181.6848 125 -0.26 32
MN.TIP.HHZ. 2017-10-21T05:24:34.79 0.1 undecidable manual P 57 157.3203 129 0.36 71
IV.CELI.HHZ. 2017-10-21T05:24:34.51 0.6 undecidable manual P 45 155.622 129 0.25 37
IV.SOLUN.HHE. 2017-10-21T05:24:33.47 0.6 undecidable manual P 257 151.4373 130 -0.39 36
IV.SERS.HNN. 2017-10-21T05:24:33.47 0.6 undecidable manual P 61 144.2445 132 0.29 38
IV.CET2.HHZ. 2017-10-21T05:24:32.52 0.6 undecidable manual P 27 138.1617 133 -0.1 39
IV.SPS2.HHZ. 2017-10-21T05:24:32.16 0.6 undecidable manual P 45 136.5633 133 -0.31 38
IV.HLNI.HHZ. 2017-10-21T05:24:31.20 0.6 undecidable manual P 194 122.8881 136 -0.07 41
IV.CAR1.HHZ. 2017-10-21T05:24:31.31 0.3 undecidable manual P 43 125.874 136 -0.22 59
IV.PLAC.HHZ. 2017-10-21T05:24:30.14 0.3 undecidable manual P 88 105.9162 141 0.26 62
IV.GRI.EHZ. 2017-10-21T05:24:30.64 0.6 undecidable manual P 67 113.0979 139 0.19 41
IV.GIB.HHE. 2017-10-21T05:24:30.36 0.6 undecidable manual P 246 114.4965 139 -0.21 40
IV.CSLB.HHZ. 2017-10-21T05:24:30.39 0.6 undecidable manual P 242 114.6963 139 -0.19 40
IV.SOI.EHZ. 2017-10-21T05:24:28.24 0.6 undecidable manual P 118 82.3509 148 0.07 45
IV.GMB.BHZ. 2017-10-21T05:24:27.54 3.0 undecidable manual P 0.28 0
IV.IACL.HHE. 2017-10-21T05:24:27.56 0.6 undecidable manual P 280 76.0683 150 -0.2 44
IV.MNO.SHZ. 2017-10-21T05:24:27.83 1.0 undecidable manual P 220 71.1732 152 0.37 22
IV.MSFR.HHZ. 2017-10-21T05:24:27.79 0.6 undecidable manual P 232 69.5748 152 0.41 43
IV.JOPP.HHZ. 2017-10-21T05:24:26.68 0.6 undecidable manual P 70 61.2942 155 -0.24 45
MN.CEL.HHZ. 2017-10-21T05:24:26.83 0.6 undecidable manual P 107 61.3941 155 -0.09 46
IV.MUCR.HHZ. 2017-10-21T05:24:26.16 0.6 undecidable manual P 216 51.7038 159 -0.29 45
IV.AIO.HHZ. 2017-10-21T05:24:26.79 0.6 undecidable manual P 179 50.0166 159 0.42 44
IV.ISTR.HHZ. 2017-10-21T05:24:26.40 0.6 undecidable manual P 357 40.5261 163 0.41 45
IV.IVPL.HHZ. 2017-10-21T05:24:25.64 0.3 undecidable manual P 256 21.4674 171 0.19 73
IV.IVGP.HHZ. 2017-10-21T05:24:25.36 0.6 undecidable manual P 263 22.6551 170 -0.12 49
IV.MSRU.HHZ. 2017-10-21T05:24:25.38 0.3 undecidable manual P 125 30.6471 167 -0.29 70
IV.ILLI.HHZ. 2017-10-21T05:24:25.48 0.1 undecidable manual P 276 23.754 170 -0.02 100
IV.IST3.HHZ. 2017-10-21T05:24:25.96 0.6 undecidable manual P 1 41.8248 163 -0.08 48
IV.MILZ.HHZ. 2017-10-21T05:24:25.14 0.3 undecidable manual P 176 16.7721 173 -0.23 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IVPL.HHE. ML:2.8 0.00034168135 0.2784 AML other m 2017-10-21T05:24:27.04
IV.AIO.HHN. ML:2.0 0.000049829845 0.1376 AML other m 2017-10-21T05:24:27.79
IV.IVPL.HHN. ML:2.7 0.00028917095 0.3808 AML other m 2017-10-21T05:24:28.01
IV.MILZ.HHE. ML:2.4 0.00015335855 0.4608 AML other m 2017-10-21T05:24:40.51
IV.MSRU.HHE. ML:2.5 0.00015978069999999999 0.4608 AML other m 2017-10-21T05:24:42.76
IV.MUCR.HHN. ML:2.0 0.000043558905 0.64 AML other m 2017-10-21T05:24:45.28
IV.MUCR.HHE. ML:1.8 0.00003034206 0.6592 AML other m 2017-10-21T05:24:44.86
IV.MILZ.HHN. ML:2.1 0.00006451072 0.1824 AML other m 2017-10-21T05:24:46.45
IV.MSRU.HHN. ML:2.4 0.0001234781 0.3392 AML other m 2017-10-21T05:24:46.89
MN.CEL.HHN. ML:2.5 0.00015085889999999998 0.2208 AML other m 2017-10-21T05:24:46.83
MN.CEL.HNN. ML:2.4 0.00012316635 0.2208 AML other m 2017-10-21T05:24:46.83
IV.GMB.BHE. ML:3.1 0.0006775151500000001 0.16 AML other m 2017-10-21T05:24:48.07
IV.JOPP.HHE. ML:2.3 0.00010569043 0.2208 AML other m 2017-10-21T05:24:48.26
IV.HLNI.HHE. ML:1.8 0.000022323379 0.56 AML other m 2017-10-21T05:24:48.57
IV.SOI.EHN. ML:2.0 0.000039337275 0.24 AML other m 2017-10-21T05:24:48.47
IV.JOPP.HHN. ML:2.2 0.00008335159000000001 0.1184 AML other m 2017-10-21T05:24:48.59
IV.GMB.BHN. ML:3.1 0.0005731382499999999 0.1984 AML other m 2017-10-21T05:24:48.77
MN.CEL.HNE. ML:2.3 0.00008809586499999999 0.2592 AML other m 2017-10-21T05:24:48.85
MN.CEL.HHE. ML:2.4 0.0001122982 0.2592 AML other m 2017-10-21T05:24:48.85
IV.AIO.HHE. ML:2.0 0.00005169285 0.2208 AML other m 2017-10-21T05:24:49.15
IV.SOI.EHE. ML:1.9 0.000033867835 0.3808 AML other m 2017-10-21T05:24:49.97
IV.GRI.EHE. ML:2.4 0.00008510000000000001 1.34 AML other m 2017-10-21T05:24:50.80
IV.GRI.EHN. ML:2.2 0.000060861445 0.5408 AML other m 2017-10-21T05:24:51.29
IV.PLAC.HHN. ML:2.3 0.00007773217499999999 0.4032 AML other m 2017-10-21T05:24:51.41
IV.CAR1.HHE. ML:2.3 0.000059925615 0.32 AML other m 2017-10-21T05:24:52.21
IV.PLAC.HNN. ML:2.4 0.00009901145 0.1984 AML other m 2017-10-21T05:24:52.22
IV.PLAC.HHE. ML:2.4 0.00010283377 0.1984 AML other m 2017-10-21T05:24:52.32
IV.SPS2.HHN. ML:1.9 0.000022674795 0.2784 AML other m 2017-10-21T05:24:53.54
IV.SPS2.HHE. ML:1.7 0.000016471184999999998 0.2784 AML other m 2017-10-21T05:24:53.75
IV.PLAC.HNE. ML:2.4 0.000083222605 0.3776 AML other m 2017-10-21T05:24:53.74
IV.CET2.HHE. ML:2.4 0.00006976953 0.6816 AML other m 2017-10-21T05:24:53.63
IV.CET2.HHN. ML:2.5 0.000097952365 0.4416 AML other m 2017-10-21T05:24:54.61
IV.CAR1.HHN. ML:2.3 0.000059133135 0.4384 AML other m 2017-10-21T05:24:55.53
MN.TIP.HHN. ML:1.9 0.0000185742 0.5408 AML other m 2017-10-21T05:24:58.61
MN.TIP.HHE. ML:1.8 0.0000171848 0.7808 AML other m 2017-10-21T05:24:58.44
IV.CELI.HHE. ML:2.2 0.000047488545 0.4416 AML other m 2017-10-21T05:24:59.00
IV.CELI.HHN. ML:2.2 0.0000468238 0.4608 AML other m 2017-10-21T05:24:59.88
IV.HLNI.HHN. ML:2.0 0.00002931241 0.8 AML other m 2017-10-21T05:25:03.47
IV.PIPA.HNN. ML:3.0 0.00020111675 1.072 AML other m 2017-10-21T05:25:05.08
IV.PIPA.HHE. ML:2.0 0.000020862775 0.4384 AML other m 2017-10-21T05:25:07.74
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