Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.3 on date 15-12-2005 and time 04:13:01 (UTC) in region 3 km E Spoleto (PG)

A magnitude ML 2.3 earthquake occured in region: 3 km E Spoleto (PG), on

  • 15-12-2005 04:13:01 (UTC)
  • 15-12-2005 05:13:01 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7400, 12.7740 at 18 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
Spoleto PG 3 38218 38218
Sant'Anatolia di Narco PG 5 564 38782
Scheggino PG 6 461 39243
Vallo di Nera PG 8 364 39607
Campello sul Clitunno PG 9 2442 42049
Castel Ritaldi PG 12 3278 45327
Ferentillo TR 13 1913 47240
Poggiodomo PG 14 117 47357
Cerreto di Spoleto PG 15 1075 48432
Trevi PG 16 8469 56901
Montefranco TR 16 1276 58177
Arrone TR 17 2763 60940
Monteleone di Spoleto PG 18 599 61539
Polino TR 18 233 61772
Giano dell'Umbria PG 19 3846 65618
Acquasparta TR 19 4778 70396
Cascia PG 20 3217 73613
Montefalco PG 20 5679 79292

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Terni (111501 inhabitants)
25 Km S of Foligno (57155 inhabitants)
52 Km SE of Perugia (166134 inhabitants)
65 Km NE of Viterbo (67173 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
77 Km W of Teramo (54892 inhabitants)
82 Km N of Guidonia Montecelio (88673 inhabitants)
86 Km N of Tivoli (56533 inhabitants)
97 Km N of Roma (2864731 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 2.5
ML 2.3 		2005-12-15
04:13:01		 42.74 12.774 18 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 543979
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-12-15 04:13:01 ± 0.06
Latitude 42.7400 ± 0.0027
Longitude 12.7740 ± 0.0061
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 543979

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 476
Semi-minor axis of confidence ellipse (meter) 145
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 295
Circular confidence region, given by single value of horizontal uncertainty (meter) 583.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 30
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.30761
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 543979
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:29:41

Md:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 543979
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:29:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.AMUR.HHZ. 2005-12-15T04:14:03.25 10.0 undecidable manual Pg 0 0 0
IV.ORI.EHE. 2005-12-15T04:13:59.04 10.0 undecidable manual Pg 0 0 0
IV.GIUL.BHN. 2005-12-15T04:13:46.29 10.0 undecidable manual Pg 0 0 0
IV.SGG.SHZ. 2005-12-15T04:13:41.50 10.0 undecidable manual Pg 0 0 0
IV.RDP.BHE. 2005-12-15T04:13:37.50 10.0 undecidable manual Pg 0 0 0
IV.VCEL.EHE. 2005-12-15T04:13:33.38 10.0 undecidable manual Pg 0 0 0
IV.BADI.EHN. 2005-12-15T04:13:33.06 10.0 undecidable manual Pg 0 0 0
IV.TOLF.HHZ. 2005-12-15T04:13:32.29 10.0 undecidable manual Pg 0 0 0
IV.CERT.HHZ. 2005-12-15T04:13:29.55 0.1 undecidable manual Sg 169 89.4438 -0.29 44
IV.SFI.SHZ. 2005-12-15T04:13:29.22 10.0 undecidable manual Pg 0 0 0
IV.ARV.SHZ. 2005-12-15T04:13:29.09 0.1 undecidable manual Sg 9 85.1481 0.517 42
IV.PIEI.BHN. 2005-12-15T04:13:29.97 0.1 undecidable manual Sg 348 90.3429 -0.152 46
IV.CING.HHN. 2005-12-15T04:13:26.26 0.1 undecidable manual Sg 26 78.366 -0.307 46
IV.MTCE.BHZ. 2005-12-15T04:13:26.32 0.1 undecidable manual Sg 182 79.6647 -0.633 40
IV.CSNT.SHZ. 2005-12-15T04:13:26.81 0.1 undecidable manual Pg 305 145.1436 0.258 80
IV.TERO.HHE. 2005-12-15T04:13:23.72 0.1 undecidable manual Sg 101 68.8755 -0.072 49
IV.ARVD.EHZ. 2005-12-15T04:13:22.31 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHN. 2005-12-15T04:13:22.06 0.1 undecidable manual Sg 341 61.3941 0.46 45
IV.CRE.EHN. 2005-12-15T04:13:21.85 0.1 undecidable manual Pg 326 117.993 -0.189 86
IV.FIAM.HHN. 2005-12-15T04:13:20.88 0.1 undecidable manual Sg 152 59.3961 -0.126 48
IV.SNTG.SHZ. 2005-12-15T04:13:20.56 0.6 undecidable manual Sg 13 58.6968 -0.233 24
IV.CAMP.EHZ. 2005-12-15T04:13:20.30 0.1 undecidable manual Sg 113 56.499 0.134 49
IV.PTQR.SHZ. 2005-12-15T04:13:20.29 10.0 undecidable manual Pg 0 0 0
IV.FSSB.SHZ. 2005-12-15T04:13:19.77 0.1 undecidable manual Pg 0 105.7164 -0.219 88
IV.PIEI.BHN. 2005-12-15T04:13:17.30 0.1 undecidable manual Pg 348 90.3429 -0.135 92
IV.FAGN.EHN. 2005-12-15T04:13:16.73 0.1 undecidable manual Pg 128 84.5487 0.255 91
IV.CERT.HHZ. 2005-12-15T04:13:16.91 0.1 undecidable manual Pg 169 89.4438 -0.366 86
IV.ARV.SHZ. 2005-12-15T04:13:16.47 0.1 undecidable manual Pg 9 85.1481 -0.095 94
IV.MNS.SHZ. 2005-12-15T04:13:15.79 0.1 undecidable manual Sg 191 40.0266 0.393 48
IV.CING.HHN. 2005-12-15T04:13:15.28 0.1 undecidable manual Pg 26 78.366 -0.157 94
IV.MTCE.BHZ. 2005-12-15T04:13:15.44 0.1 undecidable manual Pg 182 79.6647 -0.214 91
IV.SACS.HHN. 2005-12-15T04:13:14.35 0.1 undecidable manual Pg 280 71.373 0.055 97
IV.TERO.HHE. 2005-12-15T04:13:13.74 0.1 undecidable manual Pg 101 68.8755 -0.138 95
IV.AQU.SHZ. 2005-12-15T04:13:13.70 0.1 undecidable manual Pg 130 66.8775 0.162 96
IV.CAMP.EHZ. 2005-12-15T04:13:12.02 0.1 undecidable manual Pg 113 56.499 0.178 97
IV.FIAM.HHN. 2005-12-15T04:13:12.40 0.1 undecidable manual Pg 152 59.3961 0.087 99
IV.MURB.HHN. 2005-12-15T04:13:12.76 0.1 undecidable manual Pg 341 61.3941 0.113 97
IV.LNSS.BHE. 2005-12-15T04:13:11.69 0.1 undecidable manual Sg 125 26.5512 0.062 52
IV.SNTG.SHZ. 2005-12-15T04:13:11.87 0.1 undecidable manual Pg 13 58.6968 -0.323 94
IV.MNS.SHZ. 2005-12-15T04:13:09.37 0.1 undecidable manual Pg 191 40.0266 0.208 100
IV.LNSS.BHE. 2005-12-15T04:13:07.41 0.1 undecidable manual Pg 125 26.5512 0.365 98
IV.INTR.HHZ. 2005-12-15T04:13:02.96 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