Earthquake with magnitude of Md 1.0 on date 25-04-2014 and time 02:26:33 (UTC) in region 7 km E Città di Castello (PG)

A magnitude Md 1.0 earthquake occured in region: 7 km E Città di Castello (PG), on

  • 25-04-2014 02:26:33 (UTC)
  • 25-04-2014 04:26:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4690, 12.3250 at 7 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Città di Castello PG 7 39913 39913
Pietralunga PG 10 2111 42024
Montone PG 12 1680 43704
Apecchio PU 13 1882 45586
Monte Santa Maria Tiberina PG 14 1183 46769
San Giustino PG 15 11297 58066
Citerna PG 17 3531 61597
Monterchi AR 17 1757 63354
Umbertide PG 18 16681 80035
Sansepolcro AR 19 15884 95919
Mercatello sul Metauro PU 20 1378 97297

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Arezzo (99543 inhabitants)
41 Km N of Perugia (166134 inhabitants)
65 Km NW of Foligno (57155 inhabitants)
68 Km SW of Pesaro (94582 inhabitants)
69 Km S of Rimini (147750 inhabitants)
70 Km SW of Fano (60888 inhabitants)
75 Km S of Cesena (96758 inhabitants)
82 Km E of Siena (53903 inhabitants)
87 Km S of Forlì (117913 inhabitants)
92 Km E of Firenze (382808 inhabitants)
98 Km E of Scandicci (50609 inhabitants)
98 Km SE of Faenza (58541 inhabitants)
98 Km W of Ancona (100861 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
Reviewed
Rev100
Md 1.0 2014-04-25
02:26:33
43.4692 12.3253 7 2014-10-21
12:08:56
Sala Sismica INGV-Roma 6291731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2014-04-25 02:26:33 ± 0.23
Latitude 43.4692 ± 0.0094
Longitude 12.3253 ± 0.0104
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 6291731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1084
Semi-minor axis of confidence ellipse (meter) 731
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 38
Circular confidence region, given by single value of horizontal uncertainty (meter) 1080.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 163
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.02
Epicentral distance of station closest to the epicenter (degree) 0.05936
Epicentral distance of station farthest from the epicenter (degree) 0.10522
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 3
Type of magnitude Md
Reference to an origin 6291731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2014-04-25 12:30:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATVO.HHZ. 2014-04-25T02:26:37.99 0.3 undecidable manual S 145 11.6772 121 0.02 86
IV.ATPI.EHZ. 2014-04-25T02:26:36.58 0.3 undecidable manual S 108 6.5934 137 0 86
IV.BADI.EHZ. 2014-04-25T02:26:36.90 0.3 undecidable manual S 305 7.881 131 -0.03 86
IV.ATPI.EHZ. 2014-04-25T02:26:35.16 0.1 undecidable manual P 108 6.5934 137 -0.01 114
IV.BADI.EHZ. 2014-04-25T02:26:35.39 0.1 undecidable manual P 305 7.881 131 0.02 114
IV.ATVO.HHZ. 2014-04-25T02:26:35.96 0.1 undecidable manual P 145 11.6772 121 -0.01 114
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