Earthquake with magnitude of ML 0.7 on date 17-02-2012 and time 11:02:20 (Italy) in region 4 km N Sansepolcro (AR)

A magnitude ML 0.7 earthquake occured in region: 4 km N Sansepolcro (AR), on

  • 17-02-2012 10:02:20 (UTC)
  • 17-02-2012 11:02:20 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6060, 12.1480 at 10 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 4 15884 15884
San Giustino PG 7 11297 27181
Anghiari AR 10 5638 32819
Pieve Santo Stefano AR 11 3183 36002
Badia Tedalda AR 12 1087 37089
Citerna PG 12 3531 40620
Borgo Pace PU 13 606 41226
Monterchi AR 14 1757 42983
Caprese Michelangelo AR 14 1426 44409
Mercatello sul Metauro PU 16 1378 45787
Sestino AR 17 1355 47142
CittĂ  di Castello PG 18 39913 87055
Monte Santa Maria Tiberina PG 19 1183 88238

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km NE of Arezzo (99543 inhabitants)
59 Km NW of Perugia (166134 inhabitants)
60 Km S of Cesena (96758 inhabitants)
61 Km SW of Rimini (147750 inhabitants)
69 Km S of Forlì (117913 inhabitants)
70 Km W of Pesaro (94582 inhabitants)
73 Km E of Siena (53903 inhabitants)
74 Km E of Firenze (382808 inhabitants)
75 Km W of Fano (60888 inhabitants)
79 Km S of Faenza (58541 inhabitants)
80 Km E of Scandicci (50609 inhabitants)
85 Km NW of Foligno (57155 inhabitants)
90 Km E of Prato (191150 inhabitants)
90 Km SE of Imola (69797 inhabitants)
90 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 1.5
ML 0.7
2012-02-17
10:02:20
43.606 12.148 10 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1341199
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2012-02-17 10:02:20 ± 0.08
Latitude 43.6060 ± 0.0045
Longitude 12.1480 ± 0.0050
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1341199

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 474
Semi-minor axis of confidence ellipse (meter) 447
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 326
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 142
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.07824
Epicentral distance of station farthest from the epicenter (degree) 0.28868
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 1341199
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:43:55

Md:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations
Type of magnitude Md
Reference to an origin 1341199
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:43:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHE. 2012-02-17T10:02:31.34 0.3 undecidable manual Sg 104 32.0457 -0.08 73
IV.ATPC.HHE. 2012-02-17T10:02:30.76 0.3 undecidable manual Sg 119 28.4493 0.306 68
IV.ATMC.EHE. 2012-02-17T10:02:27.03 0.3 undecidable manual Sg 168 18.0708 -0.079 73
IV.CRE.HHN. 2012-02-17T10:02:26.36 0.6 undecidable manual Sg 275 15.873 -0.076 50
IV.PIEI.HHE. 2012-02-17T10:02:26.36 0.3 undecidable manual Pg 104 32.0457 -0.251 71
IV.ATPC.HHE. 2012-02-17T10:02:25.99 0.1 undecidable manual Pg 119 28.4493 -0.065 99
IV.PARC.HHZ. 2012-02-17T10:02:24.40 0.3 undecidable manual Sg 57 8.6802 -0.091 74
IV.ATMC.EHE. 2012-02-17T10:02:24.17 0.1 undecidable manual Pg 168 18.0708 0.05 100
IV.CRE.HHN. 2012-02-17T10:02:23.79 0.1 undecidable manual Pg 275 15.873 0.057 99
IV.PARC.HHZ. 2012-02-17T10:02:22.76 0.1 undecidable manual Pg 57 8.6802 0.153 100
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