Earthquake with magnitude of ML 2.3 on date 20-09-2006 and time 15:36:27 (UTC) in region 2 km SW Montefalco (PG)

A magnitude ML 2.3 earthquake occured in region: 2 km SW Montefalco (PG), on

  • 20-09-2006 15:36:27 (UTC)
  • 20-09-2006 17:36:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8860, 12.6390 at 3 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
Montefalco PG 2 5679 5679
Bevagna PG 6 5081 10760
Gualdo Cattaneo PG 7 6155 16915
Castel Ritaldi PG 7 3278 20193
Giano dell'Umbria PG 8 3846 24039
Trevi PG 9 8469 32508
Foligno PG 10 57155 89663
Spello PG 12 8645 98308
Cannara PG 13 4305 102613
Campello sul Clitunno PG 13 2442 105055
Massa Martana PG 15 3770 108825
Collazzone PG 16 3473 112298
Spoleto PG 19 38218 150516
Bettona PG 19 4367 154883

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km SW of Foligno (57155 inhabitants)
32 Km SE of Perugia (166134 inhabitants)
36 Km N of Terni (111501 inhabitants)
68 Km NE of Viterbo (67173 inhabitants)
86 Km NW of L'Aquila (69753 inhabitants)
89 Km SE of Arezzo (99543 inhabitants)
91 Km W of Teramo (54892 inhabitants)
99 Km N of Guidonia Montecelio (88673 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 2.6
ML 2.3
2006-09-20
15:36:27
42.886 12.639 3 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 593149
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2006-09-20 15:36:27 ± 0.16
Latitude 42.8860 ± 0.0045
Longitude 12.6390 ± 0.0098
Depth (km) 3 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 593149

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 849
Semi-minor axis of confidence ellipse (meter) 236
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 257
Circular confidence region, given by single value of horizontal uncertainty (meter) 943.4
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.16912
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.3

Field Value
Value 2.3
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 593149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:20:40

Md:2.6

Field Value
Value 2.6
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 593149
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 11:20:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FAGN.EHE. 2006-09-20T15:36:56.41 10.0 undecidable manual Sg 0 0 0
IV.FSSB.BHZ. 2006-09-20T15:36:55.82 0.1 undecidable manual Sg 7 90.1431 0.02 46
IV.TERO.HHN. 2006-09-20T15:36:54.56 0.1 undecidable manual Sg 110 83.8494 0.442 43
IV.VVLD.EHZ. 2006-09-20T15:36:53.71 10.0 undecidable manual Pg 0 0 0
IV.FIAM.HHN. 2006-09-20T15:36:52.75 0.1 undecidable manual Sg 150 78.9654 -0.049 47
IV.FAGN.EHE. 2006-09-20T15:36:51.41 10.0 undecidable manual Pg 0 0 0
IV.ARV.SHZ. 2006-09-20T15:36:50.95 0.1 undecidable manual Sg 20 72.0723 -0.02 48
IV.CING.HHE. 2006-09-20T15:36:50.53 0.1 undecidable manual Sg 40 70.5738 -0.025 48
IV.SFI.SHZ. 2006-09-20T15:36:50.54 0.1 undecidable manual Pg 331 129.7701 0.637 73
IV.LATE.HHZ. 2006-09-20T15:36:47.45 10.0 undecidable manual Sg 0 0 0
IV.VCEL.EHZ. 2006-09-20T15:36:47.68 0.1 undecidable manual Pg 119 112.1988 0.478 80
IV.AOI.BHZ. 2006-09-20T15:36:47.06 0.1 undecidable manual Pg 46 107.2149 0.635 76
IV.MNS.BHZ. 2006-09-20T15:36:46.53 0.1 undecidable manual Sg 176 55.6998 -0.055 49
IV.CRE.SHZ. 2006-09-20T15:36:45.18 0.1 undecidable manual Pg 326 98.4237 0.108 89
IV.LNSS.BHE. 2006-09-20T15:36:43.72 0.1 undecidable manual Sg 134 45.4212 0.525 45
IV.LATE.HHZ. 2006-09-20T15:36:43.29 10.0 undecidable manual Pg 0 0 0
IV.SNTG.SHZ. 2006-09-20T15:36:43.87 0.1 undecidable manual Sg 31 47.619 -0.11 49
IV.FSSB.BHZ. 2006-09-20T15:36:43.42 0.1 undecidable manual Pg 7 90.1431 -0.383 85
IV.TERO.HHN. 2006-09-20T15:36:42.22 0.1 undecidable manual Pg 110 83.8494 -0.614 80
IV.MURB.HHZ. 2006-09-20T15:36:42.71 0.1 undecidable manual Sg 348 42.8238 0.413 46
IV.FIAM.HHN. 2006-09-20T15:36:41.78 0.1 undecidable manual Pg 150 78.9654 -0.291 89
IV.ARV.SHZ. 2006-09-20T15:36:40.43 0.1 undecidable manual Pg 20 72.0723 -0.586 83
IV.CING.HHE. 2006-09-20T15:36:40.96 0.1 undecidable manual Pg 40 70.5738 0.183 92
IV.SACS.HHE. 2006-09-20T15:36:39.02 0.1 undecidable manual Pg 266 59.3961 -0.043 97
IV.MNS.BHZ. 2006-09-20T15:36:38.33 0.1 undecidable manual Pg 176 55.6998 -0.157 95
IV.SNTG.SHZ. 2006-09-20T15:36:36.54 0.1 undecidable manual Pg 31 47.619 -0.442 91
IV.LNSS.BHE. 2006-09-20T15:36:36.57 0.1 undecidable manual Pg 134 45.4212 0.044 100
IV.MURB.HHZ. 2006-09-20T15:36:36.06 0.1 undecidable manual Pg 348 42.8238 0.05 100
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