Earthquake with magnitude of ML 0.1 on date 20-07-2010 and time 02:22:42 (Italy) in region 2 km NE Pietralunga (PG)

A magnitude ML 0.1 earthquake occured in region: 2 km NE Pietralunga (PG), on

  • 20-07-2010 00:22:42 (UTC)
  • 20-07-2010 02:22:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4630, 12.4520 at 4 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 3 2111 2111
Apecchio PU 11 1882 3993
Cantiano PU 14 2245 6238
Montone PG 15 1680 7918
Piobbico PU 15 2029 9947
Gubbio PG 16 32216 42163
CittĂ  di Castello PG 17 39913 82076
Cagli PU 18 8731 90807
Scheggia e Pascelupo PG 19 1393 92200
Umbertide PG 20 16681 108881

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km N of Perugia (166134 inhabitants)
46 Km E of Arezzo (99543 inhabitants)
60 Km NW of Foligno (57155 inhabitants)
62 Km SW of Pesaro (94582 inhabitants)
62 Km SW of Fano (60888 inhabitants)
67 Km S of Rimini (147750 inhabitants)
77 Km S of Cesena (96758 inhabitants)
88 Km W of Ancona (100861 inhabitants)
91 Km SE of Forlì (117913 inhabitants)
92 Km E of Siena (53903 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 1.0
ML 0.1
2010-07-20
00:22:42
43.463 12.452 4 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1085539
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-07-20 00:22:42 ± 0.18
Latitude 43.4630 ± 0.0027
Longitude 12.4520 ± 0.0037
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1085539

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 363
Semi-minor axis of confidence ellipse (meter) 277
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 53
Circular confidence region, given by single value of horizontal uncertainty (meter) 424.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 211
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) 0.09443
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 1085539
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 20:58:07

Md:1.0

Field Value
Value 1.0
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1085539
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 20:58:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.STR3.BHN. 2010-07-20T00:22:53.38 10.0 undecidable manual Pg 0 0 0
IV.PIEI.HHN. 2010-07-20T00:22:46.16 0.1 undecidable manual Sg 40 10.4784 0.133 97
IV.ATPI.EHZ. 2010-07-20T00:22:44.29 0.1 undecidable manual Sg 251 4.1958 0.109 98
IV.PIEI.HHN. 2010-07-20T00:22:44.33 0.1 undecidable manual Pg 40 10.4784 -0.036 99
IV.ATPI.EHZ. 2010-07-20T00:22:43.27 0.1 undecidable manual Pg 251 4.1958 -0.03 100
IV.ATPC.HHZ. 2010-07-20T00:22:43.69 0.1 undecidable manual Sg 12 1.998 -0.048 100
IV.ATPC.HHZ. 2010-07-20T00:22:42.92 0.1 undecidable manual Pg 12 1.998 -0.124 98
IV.FIR.HHZ. 2010-07-20T00:22:39.00 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