Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 09-08-2014 and time 17:49:14 (Italy) in region 1 km SW Certaldo (FI)

A magnitude ML 2.0 earthquake occured in region: 1 km SW Certaldo (FI), on

  • 09-08-2014 15:49:14 (UTC)
  • 09-08-2014 17:49:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.5410, 11.0300 at 9 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
Certaldo FI 1 16121 16121
Gambassi Terme FI 6 4870 20991
San Gimignano SI 8 7820 28811
Castelfiorentino FI 9 17504 46315
Montaione FI 10 3700 50015
Barberino Val d'Elsa FI 11 4386 54401
Tavarnelle Val di Pesa FI 12 7800 62201
Montespertoli FI 12 13537 75738
Poggibonsi SI 13 29196 104934
Colle di Val d'Elsa SI 15 21620 126554
San Casciano in Val di Pesa FI 18 17062 143616

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km SW of Scandicci (50609 inhabitants)
31 Km SW of Firenze (382808 inhabitants)
35 Km NW of Siena (53903 inhabitants)
38 Km S of Prato (191150 inhabitants)
45 Km S of Pistoia (90315 inhabitants)
54 Km E of Pisa (89158 inhabitants)
54 Km SE of Lucca (89046 inhabitants)
58 Km E of Livorno (159219 inhabitants)
69 Km W of Arezzo (99543 inhabitants)
73 Km SE of Viareggio (62467 inhabitants)
87 Km N of Grosseto (82087 inhabitants)
90 Km SE of Massa (69479 inhabitants)
96 Km SE 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 2014-08-09
15:49:14		 43.5407 11.0303 9 2015-09-21
09:39:02		 Bollettino Sismico Italiano INGV 7863521
Reviewed
Rev100 		ML 2.0 2014-08-09
15:49:14		 43.5423 11.0395 10 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 7719791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-08-09 15:49:14 ± 0.09
Latitude 43.5407 ± 0.0036
Longitude 11.0303 ± 0.0050
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 7863521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 380
Semi-minor axis of confidence ellipse (meter) 290
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 216
Circular confidence region, given by single value of horizontal uncertainty (meter) 380.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 70
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.15738
Epicentral distance of station farthest from the epicenter (degree) 0.88853
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 22
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 7863521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-05-19 12:44:39

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 17
Type of magnitude ML
Reference to an origin 7719791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-08-09 16:04:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.EQUI.HHZ. 2014-08-09T15:49:43.08 0.6 undecidable manual S 315 98.6235 50 -0.51 39
IV.PARC.HHZ. 2014-08-09T15:49:43.38 0.3 undecidable manual S 83 97.8243 50 0.01 66
IV.GROG.HHE. 2014-08-09T15:49:42.32 0.6 undecidable manual S 262 92.5407 50 0.38 41
MN.VLC.HHZ. 2014-08-09T15:49:40.07 0.6 undecidable manual S 323 85.8474 50 -0.09 44
GU.SARM.HHZ. 2014-08-09T15:49:40.78 0.6 undecidable manual S 325 87.3459 50 0.21 43
IV.CASP.HHZ. 2014-08-09T15:49:39.84 0.3 undecidable manual S 189 84.249 50 0.1 66
IV.SFI.EHE. 2014-08-09T15:49:37.63 0.6 undecidable manual S 58 76.9674 50 -0.16 44
IV.ASQU.HHZ. 2014-08-09T15:49:34.97 0.3 undecidable manual S 65 67.1772 50 -0.22 67
IV.SEI.HHZ. 2014-08-09T15:49:34.56 0.6 undecidable manual S 25 62.7927 50 0.56 41
GU.MAIM.HHZ. 2014-08-09T15:49:32.37 0.3 undecidable manual S 314 59.8956 50 -0.86 55
GU.EQUI.HHZ. 2014-08-09T15:49:31.90 0.6 undecidable manual P 315 98.6235 50 0.71 36
IV.MTCR.EHZ. 2014-08-09T15:49:31.44 0.3 undecidable manual S 358 54.1014 50 -0.26 68
IV.PARC.HHZ. 2014-08-09T15:49:31.94 0.1 undecidable manual P 83 97.8243 50 0.89 67
GU.SARM.HHZ. 2014-08-09T15:49:30.00 0.6 undecidable manual P 325 87.3459 50 0.56 39
IV.RUFI.EHZ. 2014-08-09T15:49:30.56 0.3 undecidable manual S 49 50.616 50 -0.22 69
IV.GROG.HHE. 2014-08-09T15:49:30.44 1.0 undecidable manual P 262 92.5407 50 0.21 21
IV.CASP.HHZ. 2014-08-09T15:49:29.08 1.0 undecidable manual P 189 84.249 50 0.12 22
IV.TRIF.HHZ. 2014-08-09T15:49:29.67 0.3 undecidable manual S 192 48.3183 50 -0.49 65
IV.ARCI.HHZ. 2014-08-09T15:49:29.44 0.3 undecidable manual P 155 84.4488 50 0.45 61
IV.PTF.SHZ. 2014-08-09T15:49:29.38 0.3 undecidable manual S 4 46.62 50 -0.33 68
MN.VLC.HHZ. 2014-08-09T15:49:29.70 0.3 undecidable manual P 323 85.8474 50 0.5 61
IV.PII.HHZ. 2014-08-09T15:49:29.11 0.6 undecidable manual S 297 45.3213 50 -0.23 46
IV.SFI.EHE. 2014-08-09T15:49:28.14 0.6 undecidable manual P 58 76.9674 50 0.31 43
IV.CAFI.HHE. 2014-08-09T15:49:28.43 0.1 undecidable manual P 107 78.9654 50 0.28 86
IV.FNVD.HHE. 2014-08-09T15:49:27.05 0.6 undecidable manual P 6 69.9744 50 0.29 44
IV.ASQU.HHZ. 2014-08-09T15:49:26.33 0.3 undecidable manual P 65 67.1772 50 -0.01 70
IV.FROS.HHZ. 2014-08-09T15:49:26.70 0.3 undecidable manual S 164 38.1285 50 -0.72 61
IV.SEI.HHZ. 2014-08-09T15:49:25.98 0.1 undecidable manual P 25 62.7927 50 0.33 88
GU.MAIM.HHZ. 2014-08-09T15:49:25.32 0.1 negative manual P 314 59.8956 50 0.12 92
IV.MTCR.EHZ. 2014-08-09T15:49:24.23 0.6 undecidable manual P 358 54.1014 50 -0.09 47
IV.CRMI.HHZ. 2014-08-09T15:49:24.28 0.3 undecidable manual S 352 28.5492 107 -0.3 70
IV.PTF.SHZ. 2014-08-09T15:49:23.00 0.6 undecidable manual P 4 46.62 50 -0.17 47
IV.TRIF.HHZ. 2014-08-09T15:49:23.50 0.1 undecidable manual P 192 48.3183 50 0.07 95
IV.RUFI.EHZ. 2014-08-09T15:49:23.71 0.1 undecidable manual P 49 50.616 50 -0.07 95
IV.PII.HHZ. 2014-08-09T15:49:23.01 0.1 negative manual P 297 45.3213 50 0.05 96
IV.CSNT.HHZ. 2014-08-09T15:49:22.13 0.3 undecidable manual S 110 22.2555 111 -0.36 70
IV.FROS.HHZ. 2014-08-09T15:49:21.82 0.1 positive manual P 164 38.1285 50 -0.03 98
IV.CRMI.HHZ. 2014-08-09T15:49:20.10 0.1 positive manual P 352 28.5492 107 -0.11 98
IV.OSSC.HHZ. 2014-08-09T15:49:20.88 0.3 undecidable manual S 96 17.4714 116 -0.09 75
IV.OSSC.HHZ. 2014-08-09T15:49:18.21 0.1 negative manual P 96 17.4714 116 0.09 100
IV.CSNT.HHZ. 2014-08-09T15:49:18.82 0.1 negative manual P 110 22.2555 111 -0.18 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARCI.HHN. ML:2.0 0.0001194 1.5 AML other m 2014-08-09T15:49:42.90
IV.ARCI.HHE. ML:1.7 0.00006634999999999999 1.24 AML other m 2014-08-09T15:49:44.78
IV.ASQU.HHE. ML:2.6 0.0006705000000000001 0.48 AML other m 2014-08-09T15:49:36.35
IV.ASQU.HHN. ML:2.4 0.000449 1.52 AML other m 2014-08-09T15:49:36.98
IV.CASP.HHN. ML:1.9 0.00011 0.34 AML other m 2014-08-09T15:49:43.05
IV.CASP.HHE. ML:2.1 0.00017449999999999999 0.86 AML other m 2014-08-09T15:49:43.35
IV.CRMI.HHN. ML:1.7 0.00023999999999999998 0.22 AML other m 2014-08-09T15:49:24.79
IV.CRMI.HHE. ML:1.8 0.00030199999999999997 0.32 AML other m 2014-08-09T15:49:25.21
IV.CSNT.HHE. ML:1.9 0.0004955 0.28 AML other m 2014-08-09T15:49:23.44
IV.CSNT.HHN. ML:1.8 0.00048699999999999997 0.88 AML other m 2014-08-09T15:49:24.33
GU.EQUI.HHE. ML:1.9 0.00007350000000000001 1.58 AML other m 2014-08-09T15:49:44.17
GU.EQUI.HHN. ML:1.9 0.0000802 0.58 AML other m 2014-08-09T15:49:47.11
IV.FROS.HHE. ML:2.8 0.002125 0.24 AML other m 2014-08-09T15:49:26.96
IV.FROS.HHN. ML:2.4 0.00106 1.56 AML other m 2014-08-09T15:49:27.60
GU.MAIM.HHN. ML:2.1 0.000238 0.38 AML other m 2014-08-09T15:49:32.71
GU.MAIM.HHE. ML:2.0 0.00019800000000000002 0.24 AML other m 2014-08-09T15:49:32.75
IV.OSSC.HHN. ML:2.2 0.00127 0.36 AML other m 2014-08-09T15:49:21.03
IV.OSSC.HNN. ML:2.1 0.0012124999999999998 0.36 AML other m 2014-08-09T15:49:21.03
IV.OSSC.HHE. ML:2.1 0.001137 1.08 AML other m 2014-08-09T15:49:21.18
IV.OSSC.HNE. ML:2.1 0.001201 1.08 AML other m 2014-08-09T15:49:21.18
IV.PARC.HHN. ML:1.8 0.00006735 1.08 AML other m 2014-08-09T15:49:49.11
IV.PARC.HHE. ML:1.7 0.000050799999999999995 0.98 AML other m 2014-08-09T15:49:48.80
IV.PII.HHN. ML:2.2 0.000454 0.74 AML other m 2014-08-09T15:49:30.53
IV.PII.HHE. ML:2.2 0.000498 0.36 AML other m 2014-08-09T15:49:32.00
IV.RUFI.EHN. ML:2.1 0.00034899999999999997 0.2 AML other m 2014-08-09T15:49:31.44
IV.RUFI.EHE. ML:2.5 0.000762 0.18 AML other m 2014-08-09T15:49:31.05
GU.SARM.HHE. ML:1.9 0.00008985 1.54 AML other m 2014-08-09T15:49:42.61
GU.SARM.HHN. ML:1.8 0.00007539999999999999 0.5 AML other m 2014-08-09T15:49:43.07
IV.SEI.HHE. ML:2.2 0.0002825 0.98 AML other m 2014-08-09T15:49:37.63
IV.SEI.HHN. ML:2.5 0.0006065 0.68 AML other m 2014-08-09T15:49:38.78
IV.TRIF.HHN. ML:2.3 0.0005795 0.16 AML other m 2014-08-09T15:49:31.57
IV.TRIF.HHE. ML:2.2 0.0004615 1.14 AML other m 2014-08-09T15:49:30.23
MN.VLC.HNE. ML:1.8 0.00007445000000000001 1.44 AML other m 2014-08-09T15:49:42.26
MN.VLC.HNN. ML:1.9 0.00009295000000000001 1 AML other m 2014-08-09T15:49:43.32
MN.VLC.HHE. ML:1.8 0.00006934999999999999 1.52 AML other m 2014-08-09T15:49:42.78
MN.VLC.HHN. ML:1.9 0.000093 0.98 AML other m 2014-08-09T15:49:43.32
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