Earthquake with magnitude of ML 0.1 on date 29-07-2011 and time 03:06:15 (UTC) in region 8 km NW Valfabbrica (PG)

A magnitude ML 0.1 earthquake occured in region: 8 km NW Valfabbrica (PG), on

  • 29-07-2011 03:06:15 (UTC)
  • 29-07-2011 05:06:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2280, 12.5630 at 21 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
Valfabbrica PG 8 3389 3389
Gubbio PG 14 32216 35605
Fossato di Vico PG 18 2840 38445
Bastia Umbra PG 18 21874 60319
Assisi PG 18 28299 88618
Gualdo Tadino PG 18 15208 103826
Sigillo PG 19 2404 106230
Costacciaro PG 19 1216 107446
Perugia PG 19 166134 273580

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km NE of Perugia (166134 inhabitants)
32 Km NW of Foligno (57155 inhabitants)
61 Km E of Arezzo (99543 inhabitants)
74 Km N of Terni (111501 inhabitants)
78 Km SW of Fano (60888 inhabitants)
81 Km SW of Pesaro (94582 inhabitants)
89 Km W of Ancona (100861 inhabitants)
93 Km S of Rimini (147750 inhabitants)
97 Km NE of Viterbo (67173 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 1.5
ML 0.1
2011-07-29
03:06:15
43.228 12.563 21 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1265029
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-07-29 03:06:15 ± 0.74
Latitude 43.2280 ± 0.0405
Longitude 12.5630 ± 0.0605
Depth (km) 21 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1265029

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 6123
Semi-minor axis of confidence ellipse (meter) 2230
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 226
Circular confidence region, given by single value of horizontal uncertainty (meter) 6652.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 195
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.49
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.30847
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:0.1

Field Value
Value 0.1
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 1265029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 00:57:24

Md:1.5

Field Value
Value 1.5
Uncertainty 0.0
Num. used stations
Type of magnitude Md
Reference to an origin 1265029
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 00:57:24
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FIR.HHN. 2011-07-29T03:06:45.22 10.0 undecidable manual Pg 0 0 0
IV.ATVO.HHE. 2011-07-29T03:06:25.58 0.1 undecidable manual Sg 324 21.2676 0.575 92
IV.SSFR.HHE. 2011-07-29T03:06:25.53 10.0 undecidable manual Pg 0 0 0
IV.MURB.HHZ. 2011-07-29T03:06:22.08 0.1 undecidable manual Sg 322 4.995 -0.416 92
IV.PIEI.HHE. 2011-07-29T03:06:22.81 0.1 undecidable manual Pg 356 34.2435 -0.07 95
IV.ATCC.EHE. 2011-07-29T03:06:22.85 0.1 undecidable manual Sg 127 7.7811 0.105 100
IV.ATVO.HHE. 2011-07-29T03:06:21.33 0.1 undecidable manual Pg 324 21.2676 0.188 96
IV.MURB.HHZ. 2011-07-29T03:06:19.31 0.1 undecidable manual Pg 322 4.995 -0.384 96
IV.ATCC.EHE. 2011-07-29T03:06:19.90 0.1 undecidable manual Pg 127 7.7811 0.064 99
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