Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 03-02-2006 and time 18:59:22 (Italy) in region 5 km E Vetralla (VT)

A magnitude ML 2.1 earthquake occured in region: 5 km E Vetralla (VT), on

  • 03-02-2006 17:59:22 (UTC)
  • 03-02-2006 18:59:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3410, 12.1080 at 11 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
Vetralla VT 5 14037 14037
Villa San Giovanni in Tuscia VT 8 1331 15368
Viterbo VT 9 67173 82541
Blera VT 10 3344 85885
Barbarano Romano VT 10 1077 86962
Ronciglione VT 10 8669 95631
Caprarola VT 11 5487 101118
Capranica VT 11 6487 107605
Canepina VT 11 3082 110687
Carbognano VT 13 1995 112682
Soriano nel Cimino VT 14 8403 121085
Vejano VT 14 2254 123339
Vallerano VT 14 2621 125960
Sutri VT 15 6709 132669
Vignanello VT 15 4652 137321
Bassano Romano VT 15 5000 142321
Vitorchiano VT 16 5233 147554
Fabrica di Roma VT 16 8340 155894
Monte Romano VT 19 2054 157948

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km S of Viterbo (67173 inhabitants)
38 Km NE of Civitavecchia (52991 inhabitants)
51 Km W of Terni (111501 inhabitants)
59 Km NW of Roma (2864731 inhabitants)
64 Km NW of Guidonia Montecelio (88673 inhabitants)
64 Km N of Fiumicino (78395 inhabitants)
71 Km NW of Tivoli (56533 inhabitants)
81 Km NW of Pomezia (62966 inhabitants)
84 Km SW of Foligno (57155 inhabitants)
88 Km S of Perugia (166134 inhabitants)
91 Km NW of Velletri (53303 inhabitants)
94 Km SE of Grosseto (82087 inhabitants)
94 Km NW of Aprilia (73446 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 2.7
ML 2.1 		2006-02-03
17:59:22		 42.341 12.108 11 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 552239
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2006-02-03 17:59:22 ± 0.14
Latitude 42.3410 ± 0.0027
Longitude 12.1080 ± 0.0024
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 552239

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 333
Semi-minor axis of confidence ellipse (meter) 3
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 88
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 81
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.78
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.43712
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 552239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:38:05

Md:2.7

Field Value
Value 2.7
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 552239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:38:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHE. 2006-02-03T17:59:58.79 0.3 undecidable manual Sg 75 126.3735 -0.047 33
IV.VVLD.EHN. 2006-02-03T17:59:53.04 10.0 undecidable manual Pg 0 0 0
IV.SFI.SHZ. 2006-02-03T17:59:51.84 10.0 undecidable manual Pg 0 0 0
IV.FSSB.SHZ. 2006-02-03T17:59:49.85 0.1 undecidable manual Pg 20 159.5181 1.198 56
IV.CERT.HHZ. 2006-02-03T17:59:47.24 0.3 undecidable manual Sg 121 84.0492 -0.295 35
IV.MAON.HHZ. 2006-02-03T17:59:47.40 0.1 undecidable manual Sg 277 80.5638 0.775 40
IV.CING.HHZ. 2006-02-03T17:59:47.66 0.1 undecidable manual Pg 37 144.9438 1.26 57
IV.FIAM.HHZ. 2006-02-03T17:59:47.57 0.3 undecidable manual Sg 95 83.25 0.247 35
IV.CRE.SHZ. 2006-02-03T17:59:46.33 0.3 undecidable manual Pg 355 142.3464 0.325 62
IV.ARV.SHZ. 2006-02-03T17:59:46.68 0.1 undecidable manual Pg 28 145.1436 0.251 84
IV.LNSS.BHE. 2006-02-03T17:59:46.71 0.1 undecidable manual Sg 69 81.6516 -0.199 47
IV.FAGN.EHE. 2006-02-03T17:59:45.32 10.0 undecidable manual Pg 0 0 0
IV.ARCI.HHZ. 2006-02-03T17:59:45.58 0.1 undecidable manual Sg 318 76.6677 0.003 50
IV.PIEI.BHE. 2006-02-03T17:59:45.28 0.1 undecidable manual Pg 15 137.0628 0.098 88
IV.BADI.EHZ. 2006-02-03T17:59:44.79 0.1 undecidable manual Pg 5 130.1697 0.666 78
IV.TERO.HHE. 2006-02-03T17:59:42.89 0.1 undecidable manual Pg 75 126.3735 -0.648 76
IV.SNTG.SHZ. 2006-02-03T17:59:42.55 0.1 undecidable manual Pg 33 121.989 -0.316 85
IV.CAMP.EHZ. 2006-02-03T17:59:42.38 0.1 undecidable manual Pg 78 108.7134 1.558 51
IV.MTCE.BHE. 2006-02-03T17:59:41.78 0.1 undecidable manual Sg 124 62.9925 -0.136 51
IV.MURB.HHZ. 2006-02-03T17:59:40.87 0.1 undecidable manual Pg 18 107.8143 0.194 92
IV.SACS.HHZ. 2006-02-03T17:59:40.67 0.3 undecidable manual Sg 344 58.6968 -0.093 37
IV.NRCA.SHZ. 2006-02-03T17:59:38.53 0.1 positive manual Pg 56 98.7234 -0.751 77
IV.IVPL.BHZ. 2006-02-03T17:59:38.21 10.0 undecidable manual Pg 0 0 0
IV.FIAM.HHZ. 2006-02-03T17:59:38.66 0.3 undecidable manual Pg 95 83.25 1.769 35
IV.CERT.HHZ. 2006-02-03T17:59:37.71 0.1 undecidable manual Pg 121 84.0492 0.698 81
IV.LNSS.BHE. 2006-02-03T17:59:36.12 0.1 undecidable manual Pg 69 81.6516 -0.532 87
IV.MNS.BHE. 2006-02-03T17:59:36.48 0.1 undecidable manual Sg 84 47.3193 -1.245 34
IV.MAON.HHZ. 2006-02-03T17:59:35.94 0.1 undecidable manual Pg 277 80.5638 -0.546 88
IV.ARCI.HHZ. 2006-02-03T17:59:35.94 0.1 undecidable manual Pg 318 76.6677 0.059 100
IV.MTCE.BHE. 2006-02-03T17:59:33.94 0.1 undecidable manual Pg 124 62.9925 0.171 99
IV.TOLF.HHZ. 2006-02-03T17:59:33.48 0.1 undecidable manual Sg 196 31.9458 -0.151 54
IV.SACS.HHZ. 2006-02-03T17:59:32.51 0.1 undecidable manual Pg 344 58.6968 -0.593 88
IV.RNI2.HHE. 2006-02-03T17:59:31.56 10.0 undecidable manual Pg 0 0 0
IV.MNS.BHE. 2006-02-03T17:59:30.35 0.1 undecidable manual Pg 84 47.3193 -0.999 77
IV.TOLF.HHZ. 2006-02-03T17:59:28.30 0.1 positive manual Pg 196 31.9458 -0.685 94
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