Earthquake with magnitude of ML 0.8 on date 23-07-2007 and time 23:19:39 (Italy) in region 3 km SE Montefalco (PG)

A magnitude ML 0.8 earthquake occured in region: 3 km SE Montefalco (PG), on

  • 23-07-2007 21:19:39 (UTC)
  • 23-07-2007 23:19:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8750, 12.6850 at 11 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 3 5679 5679
Trevi PG 5 8469 14148
Castel Ritaldi PG 6 3278 17426
Bevagna PG 9 5081 22507
Foligno PG 9 57155 79662
Campello sul Clitunno PG 10 2442 82104
Giano dell'Umbria PG 10 3846 85950
Gualdo Cattaneo PG 11 6155 92105
Spello PG 13 8645 100750
Cannara PG 16 4305 105055
Spoleto PG 16 38218 143273
Massa Martana PG 17 3770 147043
Vallo di Nera PG 19 364 147407
Sellano PG 20 1079 148486
Cerreto di Spoleto PG 20 1075 149561
Sant'Anatolia di Narco PG 20 564 150125

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km S of Foligno (57155 inhabitants)
35 Km N of Terni (111501 inhabitants)
35 Km SE of Perugia (166134 inhabitants)
69 Km NE of Viterbo (67173 inhabitants)
82 Km NW of L'Aquila (69753 inhabitants)
87 Km W of Teramo (54892 inhabitants)
93 Km SE of Arezzo (99543 inhabitants)
97 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 1.6
ML 0.8
2007-07-23
21:19:39
42.875 12.685 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 643139
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2007-07-23 21:19:39 ± 0.18
Latitude 42.8750 ± 0.0045
Longitude 12.6850 ± 0.0135
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 643139

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1053
Semi-minor axis of confidence ellipse (meter) 474
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 89
Circular confidence region, given by single value of horizontal uncertainty (meter) 1208.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 275
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.37682
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 643139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:13:44

Md:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 643139
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 12:13:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ECNV.BHE. 2007-07-23T21:20:11.36 10.0 undecidable manual Pg 0 0 0
IV.GALF.HHE. 2007-07-23T21:20:09.43 10.0 undecidable manual Pg 0 0 0
IV.MMME.BHZ. 2007-07-23T21:20:07.63 10.0 undecidable manual Sg 0 0 0
IV.MNO.SHZ. 2007-07-23T21:20:05.86 10.0 undecidable manual Pg 0 0 0
IV.MMME.BHZ. 2007-07-23T21:20:03.67 10.0 undecidable manual Pg 0 0 0
IV.ESLN.BHZ. 2007-07-23T21:19:54.59 10.0 undecidable manual Pg 0 0 0
IV.LNSS.BHE. 2007-07-23T21:19:53.23 0.1 undecidable manual Sg 136 41.8248 0.031 49
IV.NRCA.SHZ. 2007-07-23T21:19:51.52 0.1 undecidable manual Sg 97 35.2425 0.093 49
IV.CESI.BHZ. 2007-07-23T21:19:48.08 0.1 undecidable manual Sg 51 22.9548 -0.076 50
IV.LNSS.BHE. 2007-07-23T21:19:47.43 0.3 undecidable manual Pg 136 41.8248 0.012 74
IV.NRCA.SHZ. 2007-07-23T21:19:46.26 0.1 undecidable manual Pg 97 35.2425 -0.14 97
IV.CESI.BHZ. 2007-07-23T21:19:44.60 0.1 undecidable manual Pg 51 22.9548 0.095 100
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