Earthquake with magnitude of ML 1.2 on date 13-02-2009 and time 08:39:10 (Italy) in region 5 km NW Sansepolcro (AR)

A magnitude ML 1.2 earthquake occured in region: 5 km NW Sansepolcro (AR), on

  • 13-02-2009 07:39:10 (UTC)
  • 13-02-2009 08:39:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5950, 12.0870 at 8 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
Sansepolcro AR 5 15884 15884
Anghiari AR 6 5638 21522
San Giustino PG 9 11297 32819
Pieve Santo Stefano AR 9 3183 36002
Caprese Michelangelo AR 10 1426 37428
Citerna PG 11 3531 40959
Monterchi AR 12 1757 42716
Badia Tedalda AR 15 1087 43803
Chiusi della Verna AR 17 2023 45826
Subbiano AR 18 6331 52157
Borgo Pace PU 18 606 52763
Chitignano AR 18 899 53662
Monte Santa Maria Tiberina PG 19 1183 54845
Capolona AR 19 5438 60283
CittĂ  di Castello PG 20 39913 100196

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km NE of Arezzo (99543 inhabitants)
59 Km NW of Perugia (166134 inhabitants)
62 Km S of Cesena (96758 inhabitants)
65 Km SW of Rimini (147750 inhabitants)
68 Km E of Siena (53903 inhabitants)
70 Km E of Firenze (382808 inhabitants)
70 Km S of Forlì (117913 inhabitants)
75 Km E of Scandicci (50609 inhabitants)
75 Km W of Pesaro (94582 inhabitants)
79 Km S of Faenza (58541 inhabitants)
80 Km W of Fano (60888 inhabitants)
86 Km E of Prato (191150 inhabitants)
87 Km NW of Foligno (57155 inhabitants)
90 Km SE of Imola (69797 inhabitants)
92 Km S of Ravenna (159116 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 1.4
ML 1.2
2009-02-13
07:39:10
43.595 12.087 8 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 743559
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-02-13 07:39:10 ± 0.15
Latitude 43.5950 ± 0.0180
Longitude 12.0870 ± 0.0075
Depth (km) 8 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 743559

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2053
Semi-minor axis of confidence ellipse (meter) 579
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 1
Circular confidence region, given by single value of horizontal uncertainty (meter) 2088.1
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 184
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33005
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 743559
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:03:43

Md:1.4

Field Value
Value 1.4
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 743559
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:03:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHE. 2009-02-13T07:39:23.55 0.3 undecidable manual Sg 100 36.6411 0.274 69
IV.PIEI.HHE. 2009-02-13T07:39:17.39 0.3 undecidable manual Pg 100 36.6411 -0.429 67
IV.CRE.HHZ. 2009-02-13T07:39:15.09 0.3 undecidable manual Sg 284 11.1777 -0.048 76
IV.PARC.HHE. 2009-02-13T07:39:15.75 0.3 undecidable manual Sg 64 13.5753 -0.073 75
IV.CRE.HHZ. 2009-02-13T07:39:13.22 0.1 positive manual Pg 284 11.1777 0.1 100
IV.PARC.HHE. 2009-02-13T07:39:13.61 0.1 positive manual Pg 64 13.5753 0.093 100
IV.PRMA.HHN. 2009-02-13T07:38:55.08 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