Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 07-07-2014 and time 00:56:55 (Italy) in region 4 km E Sovicille (SI)

A magnitude ML 1.8 earthquake occured in region: 4 km E Sovicille (SI), on

  • 06-07-2014 22:56:55 (UTC)
  • 07-07-2014 00:56:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2760, 11.2840 at 6 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
Sovicille SI 5 10116 10116
Siena SI 6 53903 64019
Monteroni d'Arbia SI 12 9088 73107
Monteriggioni SI 14 9810 82917
Murlo SI 15 2389 85306
Monticiano SI 17 1571 86877
Castelnuovo Berardenga SI 19 9097 95974
Radicondoli SI 20 914 96888

Municipalities with at least 50000 inhabitants

An earthquake occurred to
6 Km SW of Siena (53903 inhabitants)
53 Km W of Arezzo (99543 inhabitants)
54 Km S of Scandicci (50609 inhabitants)
55 Km S of Firenze (382808 inhabitants)
59 Km N of Grosseto (82087 inhabitants)
69 Km S of Prato (191150 inhabitants)
79 Km SE of Pistoia (90315 inhabitants)
85 Km E of Livorno (159219 inhabitants)
86 Km SE of Pisa (89158 inhabitants)
89 Km SE of Lucca (89046 inhabitants)
92 Km W of Perugia (166134 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 1.8 2014-07-06
22:56:55		 43.2762 11.2842 6 2015-09-21
09:37:39		 Bollettino Sismico Italiano INGV 17988631
Reviewed
Rev100 		ML 1.8 2014-07-06
22:56:55		 43.2857 11.2647 6 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 7179741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-07-06 22:56:55 ± 0.12
Latitude 43.2762 ± 0.0045
Longitude 11.2842 ± 0.0111
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 17988631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 856
Semi-minor axis of confidence ellipse (meter) 424
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 287
Circular confidence region, given by single value of horizontal uncertainty (meter) 860.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 78
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.11421
Epicentral distance of station farthest from the epicenter (degree) 0.87144
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:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 17988631
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-03-25 09:20:04

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 7179741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-07-06 23:01:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SEI.HHZ. 2014-07-06T22:57:22.99 1.0 undecidable manual S 4 86.5467 50 0.9 17
IV.RUFI.EHZ. 2014-07-06T22:57:16.12 0.3 undecidable manual S 16 64.8906 50 -0.21 67
IV.CASP.HHZ. 2014-07-06T22:57:15.28 0.6 undecidable manual S 212 63.6918 50 -0.71 39
IV.CAFI.HHZ. 2014-07-06T22:57:13.31 0.6 undecidable manual S 84 55.4001 50 -0.47 43
GU.POPM.HHZ. 2014-07-06T22:57:12.88 0.6 undecidable manual P 334 95.238 50 0.72 36
GU.MAIM.HHZ. 2014-07-06T22:57:12.25 0.3 undecidable manual P 318 95.238 50 0.09 65
IV.APEC.HHZ. 2014-07-06T22:57:12.69 0.6 undecidable manual P 71 96.7254 50 0.29 41
IV.SEI.HHZ. 2014-07-06T22:57:11.36 0.3 undecidable manual P 4 86.5467 50 0.54 60
IV.PTF.SHZ. 2014-07-06T22:57:09.56 0.3 undecidable manual P 347 77.8665 50 0.08 67
IV.SACS.HHZ. 2014-07-06T22:57:08.50 0.6 undecidable manual P 133 69.375 50 0.32 43
IV.CASP.HHZ. 2014-07-06T22:57:07.43 0.1 undecidable manual P 212 63.6918 50 0.13 91
IV.RUFI.EHZ. 2014-07-06T22:57:07.46 0.1 undecidable manual P 16 64.8906 50 -0.03 93
IV.TRIF.HHZ. 2014-07-06T22:57:07.11 0.6 undecidable manual S 240 35.6421 100 -0.86 38
IV.MCIV.HHZ. 2014-07-06T22:57:07.39 0.3 undecidable manual P 150 63.6918 50 0.09 69
IV.CAFI.HHZ. 2014-07-06T22:57:05.98 0.1 undecidable manual P 84 55.4001 50 -0.05 94
IV.OSSC.HHZ. 2014-07-06T22:57:04.89 0.6 undecidable manual S 354 27.6501 102 -0.34 47
IV.ARCI.HHZ. 2014-07-06T22:57:04.99 0.1 undecidable manual P 162 49.5171 50 -0.13 94
IV.CSNT.HHZ. 2014-07-06T22:57:03.09 0.6 undecidable manual S 1 21.867 105 -0.2 49
IV.TRIF.HHZ. 2014-07-06T22:57:02.32 0.1 undecidable manual P 240 35.6421 100 -0.35 92
IV.OSSC.HHZ. 2014-07-06T22:57:00.88 0.1 positive manual P 354 27.6501 102 -0.2 96
IV.FROS.HHZ. 2014-07-06T22:57:00.86 0.6 undecidable manual S 235 12.6762 115 0.56 45
IV.CSNT.HHZ. 2014-07-06T22:56:59.91 0.1 positive manual P 1 21.867 105 -0.06 100
IV.FROS.HHZ. 2014-07-06T22:56:58.74 0.1 positive manual P 235 12.6762 115 0.5 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAFI.HHN. ML:1.7 0.00010664999999999999 1.08 AML other m 2014-07-06T22:57:13.64
IV.CAFI.HHE. ML:1.6 0.0000871 0.36 AML other m 2014-07-06T22:57:14.08
IV.CASP.HHE. ML:2.0 0.000189 0.24 AML other m 2014-07-06T22:57:18.57
IV.CASP.HHN. ML:2.0 0.0001945 0.28 AML other m 2014-07-06T22:57:18.57
IV.CSNT.HHE. ML:1.6 0.0002775 0.34 AML other m 2014-07-06T22:57:03.35
IV.CSNT.HHN. ML:1.5 0.0002525 0.52 AML other m 2014-07-06T22:57:04.46
IV.FROS.HHN. ML:2.3 0.00266 0.96 AML other m 2014-07-06T22:57:01.88
IV.FROS.HHE. ML:2.4 0.0029699999999999996 0.9 AML other m 2014-07-06T22:57:01.04
GU.MAIM.HHN. ML:1.5 0.00003435000000000001 0.34 AML other m 2014-07-06T22:57:27.17
GU.MAIM.HHE. ML:1.4 0.0000303 0.56 AML other m 2014-07-06T22:57:28.24
IV.MCIV.HHE. ML:1.6 0.00006984999999999999 0.46 AML other m 2014-07-06T22:57:18.70
IV.MCIV.HHN. ML:1.4 0.0000453 0.64 AML other m 2014-07-06T22:57:21.32
IV.OSSC.HNE. ML:2.0 0.000513 0.46 AML other m 2014-07-06T22:57:05.82
IV.OSSC.HHE. ML:2.0 0.0005465 0.46 AML other m 2014-07-06T22:57:05.82
IV.OSSC.HNN. ML:1.8 0.000375 0.64 AML other m 2014-07-06T22:57:06.73
IV.OSSC.HHN. ML:1.8 0.0003955 0.62 AML other m 2014-07-06T22:57:07.05
IV.SACS.HHN. ML:1.2 0.0000307 0.36 AML other m 2014-07-06T22:57:21.67
IV.SACS.HHE. ML:1.0 0.0000172 1.08 AML other m 2014-07-06T22:57:20.47
IV.TRIF.HHN. ML:2.1 0.0005245 0.68 AML other m 2014-07-06T22:57:07.87
IV.TRIF.HHE. ML:2.3 0.0008774999999999999 0.26 AML other m 2014-07-06T22:57:08.32
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