Earthquake with magnitude of ML 0.1 on date 21-04-2010 and time 22:52:08 (Italy) in region 3 km E Pietralunga (PG)

A magnitude ML 0.1 earthquake occured in region: 3 km E Pietralunga (PG), on

  • 21-04-2010 20:52:08 (UTC)
  • 21-04-2010 22:52:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4370, 12.4700 at 7 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
Gubbio PG 13 32216 34327
Cantiano PU 13 2245 36572
Montone PG 14 1680 38252
Apecchio PU 14 1882 40134
Scheggia e Pascelupo PG 17 1393 41527
Piobbico PU 17 2029 43556
Umbertide PG 18 16681 60237
CittĂ  di Castello PG 19 39913 100150
Cagli PU 19 8731 108881

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km N of Perugia (166134 inhabitants)
48 Km E of Arezzo (99543 inhabitants)
57 Km NW of Foligno (57155 inhabitants)
63 Km SW of Fano (60888 inhabitants)
64 Km SW of Pesaro (94582 inhabitants)
70 Km S of Rimini (147750 inhabitants)
80 Km S of Cesena (96758 inhabitants)
87 Km W of Ancona (100861 inhabitants)
93 Km E of Siena (53903 inhabitants)
94 Km SE of Forlì (117913 inhabitants)
98 Km N of Terni (111501 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
2010-04-21
20:52:08
43.437 12.47 7 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1038949
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2010-04-21 20:52:08 ± 0.05
Latitude 43.4370 ± 0.0018
Longitude 12.4700 ± 0.0037
Depth (km) 7 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1038949

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 265
Semi-minor axis of confidence ellipse (meter) 137
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 300
Circular confidence region, given by single value of horizontal uncertainty (meter) 360.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 194
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 8
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.04
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.10882
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 1038949
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:58:38

Md:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1038949
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 19:58:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHN. 2010-04-21T20:52:12.90 0.1 undecidable manual Sg 26 12.0768 -0.035 98
IV.ATPC.HHN. 2010-04-21T20:52:11.12 0.1 undecidable manual Sg 348 4.8951 0.038 100
IV.ATPI.EHE. 2010-04-21T20:52:11.18 0.1 undecidable manual Sg 285 5.5944 -0.043 99
IV.ATVO.HHE. 2010-04-21T20:52:11.76 0.1 undecidable manual Sg 220 7.9809 -0.01 100
IV.ATVO.HHE. 2010-04-21T20:52:10.19 0.1 undecidable manual Pg 220 7.9809 0.002 100
IV.PIEI.HHN. 2010-04-21T20:52:10.84 0.1 undecidable manual Pg 26 12.0768 -0.014 99
IV.ATPI.EHE. 2010-04-21T20:52:09.88 0.1 undecidable manual Pg 285 5.5944 0.012 100
IV.ATPC.HHN. 2010-04-21T20:52:09.82 0.1 undecidable manual Pg 348 4.8951 0.033 100
IV.LAV9.HHN. 2010-04-21T20:51:52.90 10.0 undecidable manual Pg 0 0 0
IV.FIAM.HHE. 2010-04-21T20:51:34.04 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