Earthquake with magnitude of ML 2.2 on date 21-12-2005 and time 23:35:51 (Italy) in region 3 km E Spoleto (PG)

A magnitude ML 2.2 earthquake occured in region: 3 km E Spoleto (PG), on

  • 21-12-2005 22:35:51 (UTC)
  • 21-12-2005 23:35:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7450, 12.7720 at 20 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.

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 14 1913 47240
Poggiodomo PG 14 117 47357
Cerreto di Spoleto PG 15 1075 48432
Trevi PG 15 8469 56901
Montefranco TR 16 1276 58177
Arrone TR 18 2763 60940
Monteleone di Spoleto PG 18 599 61539
Polino TR 19 233 61772
Giano dell'Umbria PG 19 3846 65618
Montefalco PG 19 5679 71297
Acquasparta TR 19 4778 76075
Cascia PG 20 3217 79292

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NE of Terni (111501 inhabitants)
24 Km S of Foligno (57155 inhabitants)
51 Km SE of Perugia (166134 inhabitants)
66 Km NE of Viterbo (67173 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
77 Km W of Teramo (54892 inhabitants)
83 Km N of Guidonia Montecelio (88673 inhabitants)
87 Km N of Tivoli (56533 inhabitants)
98 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 2.7
ML 2.2
2005-12-21
22:35:51
42.745 12.772 21 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 545419
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-12-21 22:35:51 ± 0.08
Latitude 42.7450 ± 0.0036
Longitude 12.7720 ± 0.0073
Depth (km) 21 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 545419

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 570
Semi-minor axis of confidence ellipse (meter) 279
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 296
Circular confidence region, given by single value of horizontal uncertainty (meter) 721.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 51
Number of defining phases 41
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.30312
Number of stations at which the event was observed 33
Number of stations from which data was used for origin computation 23
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 545419
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:31:09

Md:2.7

Field Value
Value 2.7
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 545419
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:31:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SBPO.BHZ. 2005-12-21T22:36:44.08 10.0 undecidable manual Pg 0 0 0
IV.LAV9.SHZ. 2005-12-21T22:36:30.68 10.0 undecidable manual Pg 0 0 0
IV.MA9.SHZ. 2005-12-21T22:36:30.13 10.0 undecidable manual Pg 0 0 0
IV.SGG.SHZ. 2005-12-21T22:36:29.51 10.0 undecidable manual Pg 0 0 0
IV.ROM9.HHE. 2005-12-21T22:36:26.39 10.0 undecidable manual Pg 0 0 0
IV.FSSB.SHZ. 2005-12-21T22:36:25.34 0.1 undecidable manual Sg 0 105.2169 0.643 38
IV.GUAR.EHN. 2005-12-21T22:36:24.71 10.0 undecidable manual Pg 0 0 0
IV.TOLF.HHZ. 2005-12-21T22:36:23.28 0.1 undecidable manual Sg 220 98.5236 0.546 41
IV.VCEL.EHE. 2005-12-21T22:36:22.42 10.0 undecidable manual Pg 0 0 0
IV.BADI.EHZ. 2005-12-21T22:36:21.72 0.3 undecidable manual Sg 333 94.9383 0.024 34
IV.PIEI.BHN. 2005-12-21T22:36:20.84 0.1 undecidable manual Sg 348 89.7435 0.68 39
IV.ARV.SHZ. 2005-12-21T22:36:19.11 0.6 undecidable manual Sg 9 84.6486 0.469 21
IV.FAGN.EHN. 2005-12-21T22:36:19.44 0.6 undecidable manual Sg 128 85.0482 0.669 19
IV.SFI.SHZ. 2005-12-21T22:36:19.21 10.0 undecidable manual Pg 0 0 0
IV.CERT.HHE. 2005-12-21T22:36:19.75 0.6 undecidable manual Sg 169 89.9433 -0.464 21
IV.ARVD.EHN. 2005-12-21T22:36:18.81 0.1 undecidable manual Sg 9 84.6486 0.158 45
IV.RSM.SHZ. 2005-12-21T22:36:18.68 10.0 undecidable manual Pg 0 0 0
IV.CSNT.SHZ. 2005-12-21T22:36:16.33 0.1 undecidable manual Pg 304 144.6441 -0.012 81
IV.CING.HHN. 2005-12-21T22:36:16.39 0.1 undecidable manual Sg 26 77.8665 -0.283 45
IV.MTCE.BHN. 2005-12-21T22:36:16.92 0.3 undecidable manual Sg 182 80.1642 -0.41 32
IV.SACS.HHN. 2005-12-21T22:36:15.09 0.3 undecidable manual Sg 280 71.1732 0.401 33
IV.GIUL.BHN. 2005-12-21T22:36:15.22 0.1 undecidable manual Pg 163 137.4624 -0.208 80
IV.TERO.HHE. 2005-12-21T22:36:14.18 0.3 undecidable manual Sg 101 69.1752 0.064 35
IV.VVLD.EHZ. 2005-12-21T22:36:13.42 0.3 undecidable manual Pg 144 119.5914 0.971 48
IV.CRE.EHZ. 2005-12-21T22:36:12.80 0.1 undecidable manual Pg 326 117.4935 0.697 73
IV.MURB.HHZ. 2005-12-21T22:36:11.95 0.1 undecidable manual Sg 341 60.8946 0.254 46
IV.FIAM.HHN. 2005-12-21T22:36:11.86 0.3 undecidable manual Sg 152 59.9955 0.423 33
IV.SNTG.SHZ. 2005-12-21T22:36:11.66 0.3 undecidable manual Sg 14 58.1973 0.73 30
IV.CAMP.EHE. 2005-12-21T22:36:10.33 0.3 undecidable manual Sg 114 56.8986 -0.226 36
IV.PTQR.SHZ. 2005-12-21T22:36:10.39 10.0 undecidable manual Pg 0 0 0
IV.TOLF.HHZ. 2005-12-21T22:36:09.02 0.1 undecidable manual Pg 220 98.5236 0.071 90
IV.FSSB.SHZ. 2005-12-21T22:36:09.51 0.1 undecidable manual Pg 0 105.2169 -0.549 79
IV.BADI.EHZ. 2005-12-21T22:36:08.08 0.1 undecidable manual Pg 333 94.9383 -0.289 86
IV.PIEI.BHN. 2005-12-21T22:36:07.02 0.1 undecidable manual Pg 348 89.7435 -0.484 83
IV.FAGN.EHN. 2005-12-21T22:36:07.45 0.1 undecidable manual Pg 128 85.0482 0.73 75
IV.CERT.HHE. 2005-12-21T22:36:06.98 0.1 undecidable manual Pg 169 89.9433 -0.559 81
IV.ARV.SHZ. 2005-12-21T22:36:06.16 0.1 undecidable manual Pg 9 84.6486 -0.495 84
IV.ARVD.EHN. 2005-12-21T22:36:06.67 0.1 undecidable manual Pg 9 84.6486 0.012 92
IV.CING.HHN. 2005-12-21T22:36:05.26 0.1 undecidable manual Pg 26 77.8665 -0.289 89
IV.MNS.BHN. 2005-12-21T22:36:05.95 0.1 undecidable manual Sg 191 40.5261 0.052 50
IV.MTCE.BHN. 2005-12-21T22:36:05.76 0.1 undecidable manual Pg 182 80.1642 -0.159 91
IV.SACS.HHN. 2005-12-21T22:36:04.40 0.1 undecidable manual Pg 280 71.1732 -0.035 94
IV.AQU.SHZ. 2005-12-21T22:36:03.96 0.1 undecidable manual Pg 130 67.2771 0.155 92
IV.TERO.HHE. 2005-12-21T22:36:03.82 0.1 undecidable manual Pg 101 69.1752 -0.289 91
IV.SNTG.SHZ. 2005-12-21T22:36:02.10 0.3 undecidable manual Pg 14 58.1973 -0.216 70
IV.MURB.HHZ. 2005-12-21T22:36:02.50 0.1 undecidable manual Pg 341 60.8946 -0.252 92
IV.FIAM.HHN. 2005-12-21T22:36:02.52 0.1 undecidable manual Pg 152 59.9955 -0.081 96
IV.CAMP.EHE. 2005-12-21T22:36:02.09 0.1 undecidable manual Pg 114 56.8986 -0.015 97
IV.LNSS.BHE. 2005-12-21T22:36:01.98 0.1 undecidable manual Sg 126 26.9508 -0.276 50
IV.MNS.BHN. 2005-12-21T22:35:59.70 0.1 undecidable manual Pg 191 40.5261 0.208 97
IV.LNSS.BHE. 2005-12-21T22:35:57.57 0.1 undecidable manual Pg 126 26.9508 0.126 100
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download