Earthquake with magnitude of ML 0.7 on date 01-01-2011 and time 04:23:39 (Italy) in region 5 km SW Pietralunga (PG)

A magnitude ML 0.7 earthquake occured in region: 5 km SW Pietralunga (PG), on

  • 01-01-2011 03:23:39 (UTC)
  • 01-01-2011 04:23:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4200, 12.3860 at 9 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
Pietralunga PG 5 2111 2111
Montone PG 8 1680 3791
CittĂ  di Castello PG 13 39913 43704
Umbertide PG 13 16681 60385
Apecchio PU 16 1882 62267
Gubbio PG 17 32216 94483
Monte Santa Maria Tiberina PG 18 1183 95666

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km N of Perugia (166134 inhabitants)
41 Km E of Arezzo (99543 inhabitants)
58 Km NW of Foligno (57155 inhabitants)
69 Km SW of Pesaro (94582 inhabitants)
70 Km SW of Fano (60888 inhabitants)
73 Km S of Rimini (147750 inhabitants)
81 Km S of Cesena (96758 inhabitants)
86 Km E of Siena (53903 inhabitants)
94 Km SE of Forlì (117913 inhabitants)
94 Km W of Ancona (100861 inhabitants)
98 Km N of Terni (111501 inhabitants)
99 Km E of Firenze (382808 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 1.3
ML 0.7
2011-01-01
03:23:39
43.42 12.386 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1156069
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-01-01 03:23:39 ± 0.15
Latitude 43.4200 ± 0.0036
Longitude 12.3860 ± 0.0124
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1156069

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1017
Semi-minor axis of confidence ellipse (meter) 277
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 289
Circular confidence region, given by single value of horizontal uncertainty (meter) 1077.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 242
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.04137
Epicentral distance of station farthest from the epicenter (degree) 0.28778
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations
Type of magnitude ML
Reference to an origin 1156069
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:29:58

Md:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1156069
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:29:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSFR.HHE. 2011-01-01T03:23:51.36 0.3 undecidable manual Sg 87 31.9458 -0.048 71
IV.PIEI.HHE. 2011-01-01T03:23:46.93 0.1 undecidable manual Sg 43 17.5713 0.139 95
IV.SSFR.HHE. 2011-01-01T03:23:46.57 0.1 undecidable manual Pg 87 31.9458 0.005 95
IV.ATPC.HHZ. 2011-01-01T03:23:44.19 0.1 undecidable manual Sg 40 8.7801 -0.127 97
IV.PIEI.HHE. 2011-01-01T03:23:43.94 0.1 undecidable manual Pg 43 17.5713 0.041 97
IV.ATVO.HHZ. 2011-01-01T03:23:43.44 0.1 undecidable manual Sg 158 4.5954 -0.002 100
IV.ATVO.HHZ. 2011-01-01T03:23:42.02 0.1 undecidable manual Pg 158 4.5954 0.054 99
IV.ATPC.HHZ. 2011-01-01T03:23:42.40 0.1 undecidable manual Pg 40 8.7801 -0.07 98
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