Earthquake with magnitude of ML 0.4 on date 06-04-2012 and time 21:51:42 (Italy) in region 7 km SE Gubbio (PG)

A magnitude ML 0.4 earthquake occured in region: 7 km SE Gubbio (PG), on

  • 06-04-2012 19:51:42 (UTC)
  • 06-04-2012 21:51:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.2980, 12.6260 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
Gubbio PG 7 32216 32216
Costacciaro PG 10 1216 33432
Sigillo PG 10 2404 35836
Fossato di Vico PG 11 2840 38676
Scheggia e Pascelupo PG 12 1393 40069
Gualdo Tadino PG 15 15208 55277
Valfabbrica PG 15 3389 58666
Cantiano PU 20 2245 60911

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km NE of Perugia (166134 inhabitants)
39 Km N of Foligno (57155 inhabitants)
63 Km E of Arezzo (99543 inhabitants)
69 Km SW of Fano (60888 inhabitants)
72 Km SW of Pesaro (94582 inhabitants)
80 Km W of Ancona (100861 inhabitants)
82 Km N of Terni (111501 inhabitants)
85 Km S of Rimini (147750 inhabitants)
98 Km SE of Cesena (96758 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 1.7
ML 0.4
2012-04-06
19:51:42
43.298 12.626 5 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1356799
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-04-06 19:51:42 ± 0.08
Latitude 43.2980 ± 0.0027
Longitude 12.6260 ± 0.0074
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1356799

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 684
Semi-minor axis of confidence ellipse (meter) 316
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 256
Circular confidence region, given by single value of horizontal uncertainty (meter) 670.8
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 191
Number of associated phases, regardless of their use for origin computation 4
Number of defining phases 4
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.09
Epicentral distance of station closest to the epicenter (degree) 0.08184
Epicentral distance of station farthest from the epicenter (degree) 0.24731
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:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1356799
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 03:06:12

Md:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1356799
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 03:06:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHN. 2012-04-06T19:51:47.73 0.3 undecidable manual Pg 344 27.4503 0.033 97
IV.ATVO.HHE. 2012-04-06T19:51:46.19 0.3 undecidable manual Pg 298 20.0688 -0.063 98
IV.ATCC.EHN. 2012-04-06T19:51:44.79 0.3 undecidable manual Pg 175 12.4764 -0.021 100
IV.MURB.HHZ. 2012-04-06T19:51:44.24 0.3 undecidable manual Pg 245 9.0798 0.059 100
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