Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 19-10-2013 and time 12:55:03 (UTC) in region Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa)

A magnitude ML 2.0 earthquake occured in region: Costa Toscana settentrionale (Massa Carrara, Lucca, Pisa), on

  • 19-10-2013 12:55:03 (UTC)
  • 19-10-2013 14:55:03 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6820, 10.2760 at 10 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
Pisa PI 11 89158 89158
Vecchiano PI 14 12189 101347
Livorno LI 15 159219 260566
San Giuliano Terme PI 16 31399 291965
Collesalvetti LI 19 16827 308792
Calci PI 20 6426 315218

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km W of Pisa (89158 inhabitants)
15 Km N of Livorno (159219 inhabitants)
21 Km S of Viareggio (62467 inhabitants)
26 Km SW of Lucca (89046 inhabitants)
41 Km S of Massa (69479 inhabitants)
46 Km SE of Carrara (63133 inhabitants)
59 Km W of Pistoia (90315 inhabitants)
59 Km SE of La Spezia (93959 inhabitants)
70 Km W of Prato (191150 inhabitants)
73 Km W of Scandicci (50609 inhabitants)
79 Km W of Firenze (382808 inhabitants)
94 Km W of Siena (53903 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 2.0 2013-10-19
12:55:03		 43.6818 10.2765 10 2015-01-20
11:29:30		 Bollettino Sismico Italiano INGV 4725001
Reviewed
Rev100 		ML 1.9 2013-10-19
12:55:04		 43.7098 10.297 8 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 4693191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-10-19 12:55:03 ± 0.19
Latitude 43.6818 ± 0.0090
Longitude 10.2765 ± 0.0124
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 4725001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 979
Semi-minor axis of confidence ellipse (meter) 687
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 129
Circular confidence region, given by single value of horizontal uncertainty (meter) 980.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.18436
Epicentral distance of station farthest from the epicenter (degree) 0.98835
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 4693191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-10-19 12:58:36

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 4725001
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:25:29
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CASP.HHE. 2013-10-19T12:55:22.86 0.6 undecidable manual P 154 109.7124 50 0.66 36
GU.POPM.HHZ. 2013-10-19T12:55:21.50 0.6 undecidable manual S 43 55.6998 50 0.16 46
IV.CRMI.HHZ. 2013-10-19T12:55:21.70 0.6 undecidable manual S 77 57.6978 50 -0.19 45
IV.ERBM.EHZ. 2013-10-19T12:55:19.11 1.0 undecidable manual P 8 82.5507 50 1.09 16
IV.BDI.HHZ. 2013-10-19T12:55:19.20 0.6 undecidable manual S 31 49.4172 50 -0.46 43
IV.TRIF.HHE. 2013-10-19T12:55:18.21 0.6 undecidable manual P 141 80.6637 50 0.49 41
IV.GROG.HHZ. 2013-10-19T12:55:17.00 0.6 undecidable manual S 228 41.9247 50 -0.68 41
GU.POPM.HHZ. 2013-10-19T12:55:14.08 0.6 undecidable manual P 43 55.6998 50 0.2 45
IV.CRMI.HHZ. 2013-10-19T12:55:14.64 0.1 positive manual P 77 57.6978 50 0.45 86
IV.PLMA.HHZ. 2013-10-19T12:55:13.69 1.0 positive manual P 321 53.0025 50 0.23 23
MN.VLC.HHE. 2013-10-19T12:55:13.61 0.1 undecidable manual P 9 53.7018 50 0.04 94
GU.MAIM.HHZ. 2013-10-19T12:55:13.90 0.6 undecidable manual S 34 30.9468 50 -0.85 38
IV.T0911.EHZ. 2013-10-19T12:55:13.62 0.3 undecidable manual P 341 50.3163 50 0.56 63
GU.EQUI.HHZ. 2013-10-19T12:55:13.70 0.6 positive manual P 350 54.6009 50 -0.01 47
IV.BDI.HHZ. 2013-10-19T12:55:13.01 0.3 undecidable manual P 31 49.4172 50 0.11 70
IV.GROG.HHZ. 2013-10-19T12:55:11.39 0.1 undecidable manual P 228 41.9247 50 -0.37 90
GU.CARD.HHZ. 2013-10-19T12:55:11.66 0.1 positive manual P 23 41.5251 50 -0.04 96
IV.PII.HHZ. 2013-10-19T12:55:10.90 0.6 undecidable manual S 77 20.4684 115 -0.6 43
GU.MAIM.HHZ. 2013-10-19T12:55:09.94 0.1 positive manual P 34 30.9468 50 -0.13 96
IV.PII.HHZ. 2013-10-19T12:55:08.17 0.1 positive manual P 77 20.4684 115 -0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CARD.HHE. ML:2.0 0.00035299999999999996 0.8 AML other m 2013-10-19T12:55:17.61
GU.CARD.HHN. ML:2.2 0.00048499999999999997 0.38 AML other m 2013-10-19T12:55:18.79
IV.CRMI.HHE. ML:1.3 0.00004704999999999999 0.58 AML other m 2013-10-19T12:55:22.23
IV.CRMI.HHN. ML:1.4 0.000053099999999999996 0.24 AML other m 2013-10-19T12:55:22.16
GU.EQUI.HHN. ML:1.5 0.00007925 0.56 AML other m 2013-10-19T12:55:22.47
GU.EQUI.HHE. ML:1.6 0.00009305 0.54 AML other m 2013-10-19T12:55:28.88
IV.ERBM.EHN. ML:2.0 0.0001238 1.06 AML other m 2013-10-19T12:55:30.98
IV.ERBM.EHE. ML:1.8 0.00008834999999999999 1.32 AML other m 2013-10-19T12:55:31.26
GU.MAIM.HHE. ML:2.2 0.000707 0.34 AML other m 2013-10-19T12:55:14.40
GU.MAIM.HHN. ML:2.1 0.0006265000000000001 0.38 AML other m 2013-10-19T12:55:14.28
IV.PII.HHN. ML:2.4 0.00173 0.22 AML other m 2013-10-19T12:55:11.27
IV.PII.HHE. ML:2.4 0.00178 0.3 AML other m 2013-10-19T12:55:11.43
IV.PLMA.HHE. ML:1.8 0.00014250000000000002 1.14 AML other m 2013-10-19T12:55:26.21
IV.PLMA.HHN. ML:1.7 0.0001285 1.24 AML other m 2013-10-19T12:55:22.69
GU.POPM.HHE. ML:2.1 0.00028900000000000003 0.16 AML other m 2013-10-19T12:55:22.54
GU.POPM.HHN. ML:2.3 0.00041250000000000005 0.16 AML other m 2013-10-19T12:55:22.56
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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