Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 30-10-2013 and time 23:53:24 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 1.7 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 30-10-2013 23:53:24 (UTC)
  • 31-10-2013 00:53:24 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.4160, 15.4270 at 121 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Villafranca Tirrena ME 20 8584 8584

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km NW of Messina (238439 inhabitants)
39 Km NW of Reggio di Calabria (183035 inhabitants)
92 Km N of Acireale (52622 inhabitants)
99 Km SW of Lamezia Terme (70714 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 1.7 2013-10-30
23:53:24		 38.4163 15.4268 121 2015-01-20
11:29:33		 Bollettino Sismico Italiano INGV 7698221
Reviewed
Rev100 		ML 1.7 2013-10-30
23:53:24		 38.4058 15.3593 114 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 4769171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-10-30 23:53:24 ± 0.37
Latitude 38.4163 ± 0.0270
Longitude 15.4268 ± 0.0287
Depth (km) 121 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 7698221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3197
Semi-minor axis of confidence ellipse (meter) 1479
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 149
Circular confidence region, given by single value of horizontal uncertainty (meter) 3200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.16548
Epicentral distance of station farthest from the epicenter (degree) 1.03602
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 4769171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-10-31 00:02:35

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 2
Type of magnitude ML
Reference to an origin 7698221
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:09:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAR1.HHE. 2013-10-30T23:54:04.14 0.6 undecidable manual S 36 114.996 133 0.25 41
IV.PLAC.HHZ. 2013-10-30T23:54:00.57 0.3 undecidable manual S 87 87.9453 141 0.68 60
IV.MUCR.HHE. 2013-10-30T23:53:58.96 1.0 undecidable manual S 229 63.5919 150 2.07 8
IV.SOI.EHE. 2013-10-30T23:53:57.04 0.1 undecidable manual S 125 66.5778 149 -0.19 90
IV.GMB.BHE. 2013-10-30T23:53:56.14 1.0 undecidable manual S 128 44.5221 158 1.05 18
IV.AIO.HHZ. 2013-10-30T23:53:56.98 0.6 undecidable manual S 199 52.2033 155 1.23 32
IV.MCSR.HHZ. 2013-10-30T23:53:56.45 0.6 undecidable manual S 204 42.624 159 1.52 28
IV.IVPL.HHZ. 2013-10-30T23:53:54.98 0.6 undecidable manual S 264 39.1275 160 0.31 47
IV.JOPP.HHZ. 2013-10-30T23:53:54.91 0.3 undecidable manual S 62 45.1215 158 -0.22 71
IV.MSRU.HHZ. 2013-10-30T23:53:52.71 0.3 undecidable manual S 157 18.3705 171 -0.84 60
IV.ATN.BHZ. 2013-10-30T23:53:52.94 0.6 undecidable manual S 173 28.6491 165 -1.08 35
IV.CAR1.HHE. 2013-10-30T23:53:47.46 0.1 undecidable manual P 36 114.996 133 0.25 82
IV.PLAC.HHZ. 2013-10-30T23:53:45.37 0.1 positive manual P 87 87.9453 141 0.46 83
IV.SOI.EHE. 2013-10-30T23:53:43.32 0.1 undecidable manual P 125 66.5778 149 -0.05 94
IV.GRI.EHE. 2013-10-30T23:53:43.49 1.0 undecidable manual P 62 97.125 138 -2.16 8
IV.MCSR.HHZ. 2013-10-30T23:53:42.15 0.3 undecidable manual P 204 42.624 159 0.11 73
IV.JOPP.HHZ. 2013-10-30T23:53:42.21 0.1 undecidable manual P 62 45.1215 158 0.05 98
IV.NOV.HHE. 2013-10-30T23:53:42.99 0.6 undecidable manual P 210 50.0166 156 0.6 42
IV.MUCR.HHE. 2013-10-30T23:53:42.91 1.0 undecidable manual P 229 63.5919 150 -0.27 23
IV.GMB.BHE. 2013-10-30T23:53:42.22 0.3 undecidable manual P 128 44.5221 158 0.09 73
IV.AIO.HHZ. 2013-10-30T23:53:42.66 0.6 undecidable manual P 199 52.2033 155 0.14 47
IV.MSCL.HHE. 2013-10-30T23:53:41.61 0.3 undecidable manual P 123 37.629 161 -0.22 72
IV.MPNC.HHE. 2013-10-30T23:53:41.28 0.3 undecidable manual P 192 30.6471 165 -0.29 73
IV.IVPL.HHZ. 2013-10-30T23:53:41.77 0.1 positive manual P 264 39.1275 160 -0.12 100
IV.MSRU.HHZ. 2013-10-30T23:53:40.75 0.1 positive manual P 157 18.3705 171 -0.49 94
IV.ATN.BHZ. 2013-10-30T23:53:40.89 0.1 positive manual P 173 28.6491 165 -0.62 89
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.JOPP.HHE. ML:1.4 0.0000183 1.32 AML other m 2013-10-30T23:53:57.45
IV.JOPP.HHN. ML:1.6 0.0000279 1.3 AML other m 2013-10-30T23:54:01.85
IV.MCSR.HHN. ML:1.9 0.00005725 0.36 AML other m 2013-10-30T23:53:57.57
IV.MCSR.HHE. ML:1.9 0.000059 0.92 AML other m 2013-10-30T23:53:57.45
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