Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 09-03-2009 and time 17:38:02 (UTC) in region 6 km SW Verghereto (FC)

A magnitude ML 1.5 earthquake occured in region: 6 km SW Verghereto (FC), on

  • 09-03-2009 17:38:02 (UTC)
  • 09-03-2009 18:38:02 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.7690, 11.9490 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.

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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 6 1907 1907
Chiusi della Verna AR 8 2023 3930
Bagno di Romagna FC 10 6026 9956
Chitignano AR 13 899 10855
Bibbiena AR 13 12241 23096
Pieve Santo Stefano AR 13 3183 26279
Caprese Michelangelo AR 14 1426 27705
Poppi AR 16 6160 33865
Castel Focognano AR 16 3149 37014
Casteldelci RN 17 407 37421
Ortignano Raggiolo AR 18 878 38299
Pratovecchio Stia AR 18 5845 44144
Castel San Niccolò AR 20 2707 46851

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km N of Arezzo (99543 inhabitants)
47 Km SW of Cesena (96758 inhabitants)
51 Km S of Forlì (117913 inhabitants)
56 Km E of Firenze (382808 inhabitants)
58 Km S of Faenza (58541 inhabitants)
59 Km SW of Rimini (147750 inhabitants)
62 Km E of Scandicci (50609 inhabitants)
68 Km S of Imola (69797 inhabitants)
69 Km E of Prato (191150 inhabitants)
71 Km NE of Siena (53903 inhabitants)
75 Km S of Ravenna (159116 inhabitants)
79 Km W of Pesaro (94582 inhabitants)
82 Km NW of Perugia (166134 inhabitants)
85 Km E of Pistoia (90315 inhabitants)
86 Km W of Fano (60888 inhabitants)
94 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 1.8
ML 1.5 		2009-03-09
17:38:02		 43.769 11.949 8 2014-10-21
12:27:13		 Bollettino Sismico Italiano INGV 749299
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2009-03-09 17:38:02 ± 0.06
Latitude 43.7690 ± 0.0054
Longitude 11.9490 ± 0.0062
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 749299

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 683
Semi-minor axis of confidence ellipse (meter) 161
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 224
Circular confidence region, given by single value of horizontal uncertainty (meter) 781.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 148
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48384
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations
Type of magnitude ML
Reference to an origin 749299
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:10:05

Md:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations
Type of magnitude Md
Reference to an origin 749299
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 14:10:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LAV9.SHZ. 2009-03-09T17:38:28.26 10.0 undecidable manual Pg 0 0 0
IV.PIEI.HHE. 2009-03-09T17:38:20.39 0.3 undecidable manual Sg 119 53.7018 0.236 67
IV.VMG.SHZ. 2009-03-09T17:38:16.52 0.3 undecidable manual Sg 303 38.8278 0.327 67
IV.BADI.EHE. 2009-03-09T17:38:15.78 0.6 undecidable manual Sg 140 37.2294 0.001 48
GU.LSD.HHZ. 2009-03-09T17:38:15.39 10.0 undecidable manual Pg 0 0 0
IV.PARC.HHE. 2009-03-09T17:38:12.38 0.3 undecidable manual Sg 120 26.751 0.079 72
IV.PIEI.HHE. 2009-03-09T17:38:12.39 0.3 undecidable manual Pg 119 53.7018 -0.357 65
IV.VMG.SHZ. 2009-03-09T17:38:10.37 0.1 undecidable manual Pg 303 38.8278 -0.089 94
IV.BADI.EHE. 2009-03-09T17:38:09.84 0.3 undecidable manual Pg 140 37.2294 -0.382 67
IV.CRE.HHZ. 2009-03-09T17:38:09.19 0.3 undecidable manual Sg 179 16.6722 0.181 72
IV.SFI.EHZ. 2009-03-09T17:38:09.31 0.3 undecidable manual Sg 331 17.1717 0.161 72
IV.PARC.HHE. 2009-03-09T17:38:08.17 0.1 undecidable manual Pg 120 26.751 -0.041 97
IV.ASQU.HHZ. 2009-03-09T17:38:07.69 0.1 undecidable manual Sg 283 13.1757 -0.24 95
IV.SFI.EHZ. 2009-03-09T17:38:06.40 0.1 undecidable manual Pg 331 17.1717 0.006 99
IV.CRE.HHZ. 2009-03-09T17:38:06.49 0.3 undecidable manual Pg 179 16.6722 0.175 72
IV.ASQU.HHZ. 2009-03-09T17:38:05.70 0.1 undecidable manual Pg 283 13.1757 0.009 100
IV.VVLD.HHZ. 2009-03-09T17:37:57.22 10.0 undecidable manual Pg 0 0 0
IV.PZZT.HHE. 2009-03-09T17:37:52.63 10.0 undecidable manual Pg 0 0 0
IV.NOVE.EHN. 2009-03-09T17:37:42.81 10.0 undecidable manual Pg 0 0 0
IV.SGO.SHZ. 2009-03-09T17:37:30.84 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