Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 17-04-2013 and time 16:45:41 (Italy) in region 4 km W San Casciano in Val di Pesa (FI)

A magnitude ML 2.0 earthquake occured in region: 4 km W San Casciano in Val di Pesa (FI), on

  • 17-04-2013 14:45:41 (UTC)
  • 17-04-2013 16:45:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6720, 11.1380 at 5 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
San Casciano in Val di Pesa FI 4 17062 17062
Montespertoli FI 6 13537 30599
Impruneta FI 10 14615 45214
Scandicci FI 10 50609 95823
Lastra a Signa FI 11 20156 115979
Montelupo Fiorentino FI 11 14098 130077
Tavarnelle Val di Pesa FI 13 7800 137877
Signa FI 13 19179 157056
Firenze FI 15 382808 539864
Barberino Val d'Elsa FI 15 4386 544250
Castelfiorentino FI 15 17504 561754
Capraia e Limite FI 15 7670 569424
Certaldo FI 16 16121 585545
Empoli FI 16 48109 633654
Campi Bisenzio FI 17 46166 679820
Bagno a Ripoli FI 17 25611 705431
Greve in Chianti FI 17 13862 719293
Poggio a Caiano PO 18 10007 729300
Sesto Fiorentino FI 19 48958 778258
Carmignano PO 19 14450 792708
Fiesole FI 20 13969 806677

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km SW of Scandicci (50609 inhabitants)
15 Km SW of Firenze (382808 inhabitants)
24 Km S of Prato (191150 inhabitants)
34 Km SE of Pistoia (90315 inhabitants)
42 Km NW of Siena (53903 inhabitants)
55 Km E of Lucca (89046 inhabitants)
59 Km E of Pisa (89158 inhabitants)
64 Km W of Arezzo (99543 inhabitants)
68 Km E of Livorno (159219 inhabitants)
75 Km E of Viareggio (62467 inhabitants)
89 Km SW of Imola (69797 inhabitants)
90 Km E of Massa (69479 inhabitants)
91 Km SW of Faenza (58541 inhabitants)
93 Km S of Bologna (386663 inhabitants)
95 Km SW of Forlì (117913 inhabitants)
95 Km E of Carrara (63133 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 2013-04-17
14:45:41		 43.6718 11.1385 5 2015-01-20
11:24:32		 Bollettino Sismico Italiano INGV 5327131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-04-17 14:45:41 ± 0.14
Latitude 43.6718 ± 0.0063
Longitude 11.1385 ± 0.0099
Depth (km) 5 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 5327131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 706
Semi-minor axis of confidence ellipse (meter) 531
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 243
Circular confidence region, given by single value of horizontal uncertainty (meter) 710.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.13220
Epicentral distance of station farthest from the epicenter (degree) 0.90292
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 5327131
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:26:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FNVD.HHE. 2013-04-17T14:45:59.00 0.6 undecidable manual S 359 55.0005 50 -0.54 43
IV.CASP.HHE. 2013-04-17T14:45:59.08 0.3 undecidable manual P 193 100.2219 50 0.39 62
IV.ASQU.HHE. 2013-04-17T14:45:59.10 0.6 undecidable manual S 75 54.0015 50 -0.15 47
GU.POPM.HHZ. 2013-04-17T14:45:57.90 0.6 undecidable manual S 324 51.4152 50 -0.68 41
MN.VLC.HHE. 2013-04-17T14:45:56.46 0.6 undecidable manual P 312 80.8635 50 0.76 38
GU.SARM.HHE. 2013-04-17T14:45:56.72 0.3 undecidable manual P 314 81.8514 50 0.86 54
IV.MTCR.EHZ. 2013-04-17T14:45:54.30 0.6 undecidable manual S 345 41.0256 97 -1.08 35
GU.CARD.HHE. 2013-04-17T14:45:54.48 0.6 undecidable manual P 307 65.5899 50 1.13 33
IV.BDI.HHZ. 2013-04-17T14:45:53.38 0.3 undecidable manual P 315 61.2942 50 0.69 60
IV.RUFI.EHZ. 2013-04-17T14:45:53.20 0.6 undecidable manual S 58 34.9428 98 -0.12 49
IV.SFI.EHE. 2013-04-17T14:45:53.34 0.6 undecidable manual P 65 62.3931 50 0.49 43
IV.TRIF.HHE. 2013-04-17T14:45:52.51 0.3 undecidable manual P 197 64.6908 50 -0.7 60
IV.PTF.SHZ. 2013-04-17T14:45:52.20 0.6 undecidable manual S 350 32.4453 99 -0.26 48
GU.MAIM.HHZ. 2013-04-17T14:45:52.02 0.3 undecidable manual P 298 58.3971 50 -0.22 69
GU.POPM.HHZ. 2013-04-17T14:45:51.58 0.3 undecidable manual P 324 51.4152 50 0.41 67
IV.FNVD.HHE. 2013-04-17T14:45:51.58 0.3 undecidable manual P 359 55.0005 50 -0.15 71
IV.ASQU.HHE. 2013-04-17T14:45:51.53 0.3 undecidable manual P 75 54.0015 50 -0.03 73
IV.FROS.HHE. 2013-04-17T14:45:50.48 0.3 undecidable manual P 178 51.3153 50 -0.67 62
IV.CSNT.HHZ. 2013-04-17T14:45:49.70 0.6 undecidable manual S 151 25.1526 101 -0.27 48
IV.MTCR.EHZ. 2013-04-17T14:45:48.75 0.1 undecidable manual P 345 41.0256 97 -0.58 87
IV.PTF.SHZ. 2013-04-17T14:45:47.28 0.3 undecidable manual P 350 32.4453 99 -0.36 70
IV.CRMI.HHZ. 2013-04-17T14:45:47.80 0.6 undecidable manual S 317 18.7701 105 0.01 52
IV.FIR.HHE. 2013-04-17T14:45:47.32 0.6 undecidable manual S 39 14.6742 109 0.86 41
IV.RUFI.EHZ. 2013-04-17T14:45:47.97 0.1 positive manual P 58 34.9428 98 -0.17 97
IV.CSNT.HHZ. 2013-04-17T14:45:46.32 0.3 undecidable manual P 151 25.1526 101 0.12 75
IV.CRMI.HHZ. 2013-04-17T14:45:45.12 0.1 undecidable manual P 317 18.7701 105 0.18 100
IV.FIR.HHE. 2013-04-17T14:45:44.60 0.1 undecidable manual P 39 14.6742 109 0.43 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BDI.HHE. ML:2.2 0.0003325 0.28 AML other m 2013-04-17T14:46:03.89
IV.BDI.HHN. ML:2.1 0.00027400000000000005 1.06 AML other m 2013-04-17T14:46:04.39
IV.CSNT.HHN. ML:1.8 0.00037 0.6 AML other m 2013-04-17T14:45:50.83
IV.CSNT.HHE. ML:1.8 0.000363 0.84 AML other m 2013-04-17T14:45:54.30
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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