Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 17-03-2011 and time 15:13:29 (Italy) in region 2 km NE Monteriggioni (SI)

A magnitude ML 2.2 earthquake occured in region: 2 km NE Monteriggioni (SI), on

  • 17-03-2011 14:13:29 (UTC)
  • 17-03-2011 15:13:29 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4130, 11.2350 at 7 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
Monteriggioni SI 2 9810 9810
Castellina in Chianti SI 8 2859 12669
Poggibonsi SI 9 29196 41865
Colle di Val d'Elsa SI 9 21620 63485
Siena SI 13 53903 117388
Radda in Chianti SI 14 1613 119001
Sovicille SI 15 10116 129117
Barberino Val d'Elsa FI 15 4386 133503
San Gimignano SI 17 7820 141323
Tavarnelle Val di Pesa FI 17 7800 149123
Gaiole in Chianti SI 17 2758 151881
Casole d'Elsa SI 17 3897 155778

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km NW of Siena (53903 inhabitants)
39 Km S of Scandicci (50609 inhabitants)
40 Km S of Firenze (382808 inhabitants)
53 Km W of Arezzo (99543 inhabitants)
53 Km S of Prato (191150 inhabitants)
63 Km SE of Pistoia (90315 inhabitants)
73 Km N of Grosseto (82087 inhabitants)
75 Km E of Pisa (89158 inhabitants)
76 Km SE of Lucca (89046 inhabitants)
76 Km E of Livorno (159219 inhabitants)
94 Km SE of Viareggio (62467 inhabitants)
99 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 		Md 2.3
ML 2.2 		2011-03-17
14:13:29		 43.413 11.235 7 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 1182939
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-03-17 14:13:29 ± 0.16
Latitude 43.4130 ± 0.0072
Longitude 11.2350 ± 0.0087
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1182939

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 695
Semi-minor axis of confidence ellipse (meter) 629
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 337
Circular confidence region, given by single value of horizontal uncertainty (meter) 1063.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.54
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.95148
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1182939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:05:44

Md:2.3

Field Value
Value 2.3
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1182939
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:05:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TEOL.HHZ. 2011-03-17T14:14:07.09 10.0 undecidable manual Pg 0 0 0
IV.ATVO.HHE. 2011-03-17T14:13:58.53 0.3 undecidable manual Sg 92 94.5387 0.131 65
IV.FNVD.HHZ. 2011-03-17T14:13:56.36 0.6 undecidable manual Sg 354 84.249 0.711 37
IV.IMOL.EHN. 2011-03-17T14:13:55.06 10.0 undecidable manual Pg 0 0 0
IV.PARC.HHN. 2011-03-17T14:13:55.50 0.3 undecidable manual Sg 72 84.8484 -0.324 63
GU.MAIM.HHN. 2011-03-17T14:13:54.38 0.3 undecidable manual Sg 313 81.5517 -0.552 60
IV.CASP.HHN. 2011-03-17T14:13:52.82 0.3 undecidable manual Sg 204 75.1692 -0.422 63
IV.SFI.EHZ. 2011-03-17T14:13:52.49 0.3 undecidable manual Sg 42 73.4709 -0.281 65
IV.ARCI.HHE. 2011-03-17T14:13:51.00 0.6 undecidable manual Sg 163 65.1903 0.427 43
IV.CRE.HHN. 2011-03-17T14:13:49.12 0.3 undecidable manual Sg 68 62.0934 -0.609 61
IV.MTRZ.HHE. 2011-03-17T14:13:49.11 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHE. 2011-03-17T14:13:48.92 0.1 undecidable manual Pg 99 105.4167 0.892 66
IV.PIEI.HHE. 2011-03-17T14:13:48.22 0.3 undecidable manual Pg 82 105.6165 0.163 63
IV.ASQU.HHN. 2011-03-17T14:13:48.98 0.1 undecidable manual Sg 46 61.5939 -0.638 80
GU.TRAV.HHZ. 2011-03-17T14:13:47.29 10.0 undecidable manual Pg 0 0 0
IV.ATPC.HHN. 2011-03-17T14:13:47.19 0.3 undecidable manual Pg 85 98.7234 0.189 63
IV.ATVO.HHE. 2011-03-17T14:13:46.75 0.3 undecidable manual Pg 92 94.5387 0.395 61
IV.BDI.HHZ. 2011-03-17T14:13:46.17 0.3 undecidable manual Pg 325 88.3449 0.773 54
IV.FNVD.HHZ. 2011-03-17T14:13:45.92 0.3 undecidable manual Pg 354 84.249 1.156 46
IV.SASS.HHZ. 2011-03-17T14:13:44.98 0.3 undecidable manual Sg 249 47.2194 -0.781 58
IV.PARC.HHN. 2011-03-17T14:13:44.98 0.1 undecidable manual Pg 72 84.8484 0.114 88
GU.MAIM.HHN. 2011-03-17T14:13:44.84 0.3 undecidable manual Pg 313 81.5517 0.489 61
IV.BADI.EHN. 2011-03-17T14:13:44.89 0.3 undecidable manual Pg 82 82.0512 0.466 62
IV.SFI.EHZ. 2011-03-17T14:13:43.20 0.3 undecidable manual Pg 42 73.4709 0.096 68
IV.FIR.HHN. 2011-03-17T14:13:43.38 10.0 undecidable manual Pg 0 0 0
IV.TRIF.HHN. 2011-03-17T14:13:43.75 0.3 undecidable manual Sg 219 42.5241 -0.779 59
IV.CASP.HHN. 2011-03-17T14:13:43.85 0.1 undecidable manual Pg 204 75.1692 0.475 83
IV.ASQU.HHN. 2011-03-17T14:13:41.23 0.3 undecidable manual Pg 46 61.5939 -0.054 70
IV.CRE.HHN. 2011-03-17T14:13:41.53 0.3 undecidable manual Pg 68 62.0934 0.183 68
IV.ARCI.HHE. 2011-03-17T14:13:41.54 0.3 undecidable manual Pg 163 65.1903 -0.296 66
IV.CAFI.HHZ. 2011-03-17T14:13:40.50 0.1 undecidable manual Pg 99 59.6958 -0.491 85
IV.SASS.HHZ. 2011-03-17T14:13:39.10 0.1 undecidable manual Pg 249 47.2194 0.044 96
IV.TRIF.HHN. 2011-03-17T14:13:38.61 0.3 undecidable manual Pg 219 42.5241 0.264 69
IV.SOLUN.HHZ. 2011-03-17T14:13:34.86 10.0 undecidable manual Pg 0 0 0
IV.CSNT.HHZ. 2011-03-17T14:13:33.21 0.1 undecidable manual Sg 34 8.0808 -0.487 93
IV.SSFR.HHE. 2011-03-17T14:13:33.38 10.0 undecidable manual Pg 0 0 0
IV.CSNT.HHZ. 2011-03-17T14:13:31.92 0.1 undecidable manual Pg 34 8.0808 -0.17 100
IV.NRCA.HHZ. 2011-03-17T14:13:14.40 10.0 undecidable manual Pg 0 0 0
MN.WDD.HHN. 2011-03-17T14:13:13.43 10.0 undecidable manual Pg 0 0 0
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