Earthquake with magnitude of Md 2.2 on date 16-10-2005 and time 19:56:35 (Italy) in region 1 km NW Spoleto (PG)

A magnitude Md 2.2 earthquake occured in region: 1 km NW Spoleto (PG), on

  • 16-10-2005 17:56:35 (UTC)
  • 16-10-2005 19:56:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7410, 12.7310 at 29 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 1 38218 38218
Sant'Anatolia di Narco PG 9 564 38782
Scheggino PG 9 461 39243
Campello sul Clitunno PG 10 2442 41685
Castel Ritaldi PG 10 3278 44963
Vallo di Nera PG 11 364 45327
Ferentillo TR 14 1913 47240
Trevi PG 15 8469 55709
Acquasparta TR 16 4778 60487
Montefranco TR 16 1276 61763
Giano dell'Umbria PG 16 3846 65609
Poggiodomo PG 17 117 65726
Massa Martana PG 17 3770 69496
Cerreto di Spoleto PG 18 1075 70571
Arrone TR 18 2763 73334
Montefalco PG 18 5679 79013
Polino TR 20 233 79246

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NE of Terni (111501 inhabitants)
24 Km S of Foligno (57155 inhabitants)
49 Km SE of Perugia (166134 inhabitants)
63 Km NE of Viterbo (67173 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
80 Km W of Teramo (54892 inhabitants)
82 Km N of Guidonia Montecelio (88673 inhabitants)
87 Km N of Tivoli (56533 inhabitants)
96 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 2.2 2005-10-16
17:56:35
42.741 12.731 29 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 537999
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2005-10-16 17:56:35 ± 0.35
Latitude 42.7410 ± 0.0099
Longitude 12.7310 ± 0.0306
Depth (km) 29 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 537999

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2207
Semi-minor axis of confidence ellipse (meter) 1710
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 196
Circular confidence region, given by single value of horizontal uncertainty (meter) 2731.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 191
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.53600
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 537999
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 10:23:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TR9.SHZ. 2005-10-16T17:58:25.02 10.0 undecidable manual Sg 0 0 0
IV.DOI.HHZ. 2005-10-16T17:57:48.93 10.0 undecidable manual Sg 0 0 0
IV.DOI.HHZ. 2005-10-16T17:57:35.59 10.0 undecidable manual Pg 0 0 0
IV.MMGO.SHZ. 2005-10-16T17:57:35.41 10.0 undecidable manual Pg 0 0 0
IV.TR9.SHZ. 2005-10-16T17:57:24.46 10.0 undecidable manual Pg 0 0 0
IV.STR5.EHZ. 2005-10-16T17:57:08.57 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2005-10-16T17:56:56.16 0.1 undecidable manual Sg 17 59.496 -0.021 49
IV.MURB.HHN. 2005-10-16T17:56:52.86 10.0 undecidable manual Sg 0 0 0
IV.MNS.SHZ. 2005-10-16T17:56:51.12 0.1 undecidable manual Sg 186 39.7269 0.193 49
IV.NRCA.SHZ. 2005-10-16T17:56:49.09 0.1 undecidable manual Sg 72 32.8449 -0.174 50
IV.SNTG.SHZ. 2005-10-16T17:56:47.10 0.1 undecidable manual Pg 17 59.496 0.016 98
IV.MURB.HHN. 2005-10-16T17:56:47.65 10.0 undecidable manual Pg 0 0 0
IV.NRCA.SHZ. 2005-10-16T17:56:43.35 0.1 undecidable manual Pg 72 32.8449 0.152 100
IV.MNS.SHZ. 2005-10-16T17:56:43.96 0.1 undecidable manual Pg 186 39.7269 -0.174 98
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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