Earthquake with magnitude of ML 0.1 on date 30-04-2011 and time 13:41:29 (UTC) in region 5 km W Pietralunga (PG)

A magnitude ML 0.1 earthquake occured in region: 5 km W Pietralunga (PG), on

  • 30-04-2011 13:41:29 (UTC)
  • 30-04-2011 15:41:29 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4580, 12.3790 at 5 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 11 1680 3791
CittĂ  di Castello PG 11 39913 43704
Apecchio PU 12 1882 45586
Umbertide PG 17 16681 62267
Monte Santa Maria Tiberina PG 18 1183 63450
Piobbico PU 18 2029 65479
San Giustino PG 19 11297 76776
Gubbio PG 20 32216 108992

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km N of Perugia (166134 inhabitants)
40 Km E of Arezzo (99543 inhabitants)
62 Km NW of Foligno (57155 inhabitants)
66 Km SW of Pesaro (94582 inhabitants)
67 Km SW of Fano (60888 inhabitants)
69 Km S of Rimini (147750 inhabitants)
76 Km S of Cesena (96758 inhabitants)
86 Km E of Siena (53903 inhabitants)
89 Km SE of Forlì (117913 inhabitants)
94 Km W of Ancona (100861 inhabitants)
97 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 1.2
ML 0.1
2011-04-30
13:41:29
43.458 12.379 5 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1204719
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-04-30 13:41:29 ± 0.23
Latitude 43.4580 ± 0.0063
Longitude 12.3790 ± 0.0186
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1204719

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1579
Semi-minor axis of confidence ellipse (meter) 368
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 294
Circular confidence region, given by single value of horizontal uncertainty (meter) 1655.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 250
Number of associated phases, regardless of their use for origin computation 8
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.13760
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.1

Field Value
Value 0.1
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 1204719
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:35:06

Md:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1204719
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 23:35:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ALJA.HHN. 2011-04-30T13:41:58.41 10.0 undecidable manual Pg 0 0 0
IV.NRCA.HHZ. 2011-04-30T13:41:52.49 10.0 undecidable manual Pg 0 0 0
IV.PIEI.HHN. 2011-04-30T13:41:35.42 0.3 undecidable manual Sg 55 15.2736 0.209 71
IV.ATVO.HHE. 2011-04-30T13:41:33.15 0.3 undecidable manual Sg 165 8.6802 0.022 75
IV.ATPC.HHZ. 2011-04-30T13:41:32.39 0.3 undecidable manual Sg 68 6.7932 -0.178 73
IV.PIEI.HHN. 2011-04-30T13:41:32.83 0.1 undecidable manual Pg 55 15.2736 -0.035 98
IV.ATPC.HHZ. 2011-04-30T13:41:31.31 0.1 undecidable manual Pg 68 6.7932 -0.027 100
IV.ATVO.HHE. 2011-04-30T13:41:31.69 0.3 undecidable manual Pg 165 8.6802 0.033 75
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