Earthquake with magnitude of ML 1.5 on date 23-09-2010 and time 17:04:58 (UTC) in region 4 km SW Montefalco (PG)

A magnitude ML 1.5 earthquake occured in region: 4 km SW Montefalco (PG), on

  • 23-09-2010 17:04:58 (UTC)
  • 23-09-2010 19:04:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8610, 12.6360 at 7 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 4 5679 5679
Castel Ritaldi PG 5 3278 8957
Giano dell'Umbria PG 6 3846 12803
Gualdo Cattaneo PG 9 6155 18958
Bevagna PG 9 5081 24039
Trevi PG 9 8469 32508
Foligno PG 12 57155 89663
Campello sul Clitunno PG 12 2442 92105
Massa Martana PG 13 3770 95875
Spello PG 15 8645 104520
Cannara PG 16 4305 108825
Spoleto PG 16 38218 147043
Collazzone PG 17 3473 150516

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km SW of Foligno (57155 inhabitants)
33 Km N of Terni (111501 inhabitants)
34 Km SE of Perugia (166134 inhabitants)
66 Km NE of Viterbo (67173 inhabitants)
84 Km NW of L'Aquila (69753 inhabitants)
90 Km W of Teramo (54892 inhabitants)
91 Km SE of Arezzo (99543 inhabitants)
96 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 2.1
ML 1.5
2010-09-23
17:04:58
42.861 12.636 7 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1118549
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-09-23 17:04:58 ± 0.12
Latitude 42.8610 ± 0.0036
Longitude 12.6360 ± 0.0061
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1118549

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 524
Semi-minor axis of confidence ellipse (meter) 99
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 258
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.3
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 31
Number of defining phases 27
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) 0.67809
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:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1118549
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 21:40:53

Md:2.1

Field Value
Value 2.1
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1118549
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 21:40:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHE. 2010-09-23T17:05:22.92 0.3 undecidable manual Sg 354 75.2691 0.84 54
IV.SMA1.EHE. 2010-09-23T17:05:19.38 0.3 undecidable manual Sg 114 62.3931 0.74 58
IV.RM32.EHZ. 2010-09-23T17:05:19.23 0.3 undecidable manual Sg 121 62.3931 0.589 61
IV.RM33.EHZ. 2010-09-23T17:05:18.11 0.3 undecidable manual Sg 129 61.1943 -0.208 68
IV.ATVO.HHE. 2010-09-23T17:05:18.22 0.3 undecidable manual Sg 342 60.7947 0.025 71
IV.ATPC.HHN. 2010-09-23T17:05:17.18 10.0 undecidable manual Sg 0 0 0
IV.ATFO.HHZ. 2010-09-23T17:05:17.92 10.0 undecidable manual Pg 0 0 0
IV.RM29.EHZ. 2010-09-23T17:05:17.36 0.1 undecidable manual Sg 125 57.2982 0.098 93
IV.MNS.HHZ. 2010-09-23T17:05:16.00 0.3 undecidable manual Sg 176 52.8027 -0.088 71
IV.SNTG.HHE. 2010-09-23T17:05:15.14 0.3 undecidable manual Sg 29 50.2164 -0.24 69
IV.MURB.HHN. 2010-09-23T17:05:14.31 0.3 undecidable manual Sg 349 45.5211 0.177 70
IV.MGAB.HHN. 2010-09-23T17:05:13.05 0.1 undecidable manual Sg 278 43.0236 -0.403 90
IV.PIEI.HHE. 2010-09-23T17:05:12.29 0.3 undecidable manual Pg 354 75.2691 0.139 67
IV.ATPC.HHN. 2010-09-23T17:05:12.52 10.0 undecidable manual Pg 0 0 0
IV.FDMO.HHE. 2010-09-23T17:05:12.39 0.3 undecidable manual Sg 62 41.5251 -0.662 62
IV.ATPI.EHZ. 2010-09-23T17:05:11.26 0.3 undecidable manual Pg 344 68.0763 0.219 67
IV.SMA1.EHE. 2010-09-23T17:05:10.03 0.3 undecidable manual Pg 114 62.3931 -0.131 69
IV.RM32.EHZ. 2010-09-23T17:05:10.22 0.3 undecidable manual Pg 121 62.3931 0.055 70
IV.RM29.EHZ. 2010-09-23T17:05:09.27 0.3 undecidable manual Pg 125 57.2982 -0.097 70
IV.RM33.EHZ. 2010-09-23T17:05:09.48 0.3 undecidable manual Pg 129 61.1943 -0.496 64
IV.ATVO.HHE. 2010-09-23T17:05:09.72 0.3 undecidable manual Pg 342 60.7947 -0.187 68
IV.MNS.HHZ. 2010-09-23T17:05:08.86 0.3 undecidable manual Pg 176 52.8027 0.17 69
IV.CESI.HHE. 2010-09-23T17:05:08.35 0.1 undecidable manual Sg 54 27.0507 0.095 98
IV.CESX.HHZ. 2010-09-23T17:05:08.64 0.1 undecidable manual Sg 189 28.1496 -0.009 100
IV.MURB.HHN. 2010-09-23T17:05:07.46 0.3 undecidable manual Pg 349 45.5211 -0.099 71
IV.MGAB.HHN. 2010-09-23T17:05:07.79 0.3 undecidable manual Pg 278 43.0236 0.621 63
IV.SNTG.HHE. 2010-09-23T17:05:07.87 0.3 undecidable manual Pg 29 50.2164 -0.41 66
IV.FDMO.HHE. 2010-09-23T17:05:06.47 0.3 undecidable manual Pg 62 41.5251 -0.468 67
IV.CESI.HHE. 2010-09-23T17:05:04.31 0.3 undecidable manual Pg 54 27.0507 0.141 73
IV.CESX.HHZ. 2010-09-23T17:05:04.36 0.3 undecidable manual Pg 189 28.1496 -0.036 75
IV.GUMA.HHE. 2010-09-23T17:04:49.27 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