Earthquake with magnitude of ML 0.9 on date 09-03-2009 and time 08:17:45 (UTC) in region 7 km W Verghereto (FC)

A magnitude ML 0.9 earthquake occured in region: 7 km W Verghereto (FC), on

  • 09-03-2009 08:17:45 (UTC)
  • 09-03-2009 09:17:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.7710, 11.9330 at 9 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
Verghereto FC 7 1907 1907
Chiusi della Verna AR 8 2023 3930
Bagno di Romagna FC 10 6026 9956
Bibbiena AR 12 12241 22197
Chitignano AR 13 899 23096
Pieve Santo Stefano AR 14 3183 26279
Poppi AR 14 6160 32439
Caprese Michelangelo AR 15 1426 33865
Castel Focognano AR 15 3149 37014
Pratovecchio Stia AR 17 5845 42859
Ortignano Raggiolo AR 18 878 43737
Casteldelci RN 18 407 44144
Castel San Niccolò AR 19 2707 46851
Santa Sofia FC 20 4136 50987

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km N of Arezzo (99543 inhabitants)
48 Km SW of Cesena (96758 inhabitants)
51 Km S of Forlì (117913 inhabitants)
54 Km E of Firenze (382808 inhabitants)
57 Km S of Faenza (58541 inhabitants)
60 Km SW of Rimini (147750 inhabitants)
60 Km E of Scandicci (50609 inhabitants)
67 Km S of Imola (69797 inhabitants)
68 Km E of Prato (191150 inhabitants)
70 Km NE of Siena (53903 inhabitants)
75 Km S of Ravenna (159116 inhabitants)
80 Km W of Pesaro (94582 inhabitants)
82 Km NW of Perugia (166134 inhabitants)
83 Km E of Pistoia (90315 inhabitants)
88 Km W of Fano (60888 inhabitants)
93 Km SE of Bologna (386663 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 0.9
2009-03-09
08:17:45
43.771 11.933 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 749259
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-03-09 08:17:45 ± 0.12
Latitude 43.7710 ± 0.0018
Longitude 11.9330 ± 0.0075
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 749259

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 484
Semi-minor axis of confidence ellipse (meter) 348
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 254
Circular confidence region, given by single value of horizontal uncertainty (meter) 632.5
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 200
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) 0.08
Epicentral distance of station closest to the epicenter (degree) 0.10702
Epicentral distance of station farthest from the epicenter (degree) 0.15288
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitudes information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 749259
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:10:02

Md:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 749259
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:10:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SFI.EHE. 2009-03-09T08:17:51.74 0.3 undecidable manual Sg 335 16.3725 -0.003 75
IV.CRE.HHE. 2009-03-09T08:17:51.97 0.3 undecidable manual Sg 175 16.9719 0.052 74
IV.ASQU.HHN. 2009-03-09T08:17:50.40 0.1 undecidable manual Sg 284 11.877 -0.034 100
IV.CRE.HHE. 2009-03-09T08:17:49.04 0.1 undecidable manual Pg 175 16.9719 -0.066 99
IV.SFI.EHE. 2009-03-09T08:17:49.01 0.1 undecidable manual Pg 335 16.3725 0.006 100
IV.ASQU.HHN. 2009-03-09T08:17:48.31 0.1 undecidable manual Pg 284 11.877 0.062 99
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