Earthquake with magnitude of Md 2.2 on date 15-09-2003 and time 21:38:31 (Italy) in region 1 km S Vaiano (PO)

A magnitude Md 2.2 earthquake occured in region: 1 km S Vaiano (PO), on

  • 15-09-2003 19:38:31 (UTC)
  • 15-09-2003 21:38:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.9580, 11.1210 at 29 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
Vaiano PO 1 9895 9895
Montemurlo PO 7 18456 28351
Cantagallo PO 8 3105 31456
Montale PT 8 10737 42193
Prato PO 9 191150 233343
Barberino di Mugello FI 11 10836 244179
Agliana PT 11 17525 261704
Calenzano FI 11 17489 279193
Vernio PO 11 6060 285253
Vaglia FI 14 5073 290326
Sesto Fiorentino FI 15 48958 339284
Campi Bisenzio FI 15 46166 385450
Scarperia e San Piero FI 16 12217 397667
Pistoia PT 16 90315 487982
Poggio a Caiano PO 17 10007 497989
Quarrata PT 17 26190 524179
Carmignano PO 18 14450 538629
Sambuca Pistoiese PT 19 1626 540255
Signa FI 20 19179 559434

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km N of Prato (191150 inhabitants)
16 Km E of Pistoia (90315 inhabitants)
23 Km N of Scandicci (50609 inhabitants)
24 Km NW of Firenze (382808 inhabitants)
51 Km E of Lucca (89046 inhabitants)
62 Km S of Bologna (386663 inhabitants)
64 Km E of Pisa (89158 inhabitants)
65 Km SW of Imola (69797 inhabitants)
70 Km E of Viareggio (62467 inhabitants)
71 Km SW of Faenza (58541 inhabitants)
73 Km N of Siena (53903 inhabitants)
78 Km S of Modena (184973 inhabitants)
79 Km E of Massa (69479 inhabitants)
79 Km NE of Livorno (159219 inhabitants)
79 Km W of Forlì (117913 inhabitants)
82 Km NW of Arezzo (99543 inhabitants)
83 Km E of Carrara (63133 inhabitants)
91 Km SE of Reggio nell'Emilia (171345 inhabitants)
92 Km W of Cesena (96758 inhabitants)
94 Km S of Carpi (70699 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 2.2
ML-VAX 1.7
2003-09-15
19:38:31
43.958 11.121 29 2013-07-15
08:40:51
Bollettino Sismico Italiano INGV 484959
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2003-09-15 19:38:31 ± 0.262
Latitude 43.9580 ± 0.0242
Longitude 11.1210 ± 0.0231
Depth (km) 29 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 484959

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 3268.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 249
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00170
Epicentral distance of station farthest from the epicenter (degree) 0.00469
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitudes information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 4
Type of magnitude Md
Reference to an origin 484959
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 00:42:23

ML:1.7

Field Value
Value 1.7
Uncertainty
Num. used stations 3
Type of magnitude ML
Reference to an origin 484959
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-04-28 13:07:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.SFI.Z. 2003-09-15T19:38:51.32 10.0 undecidable manual SN 95 0.5217 0.27 0.1
--.VMG.Z. 2003-09-15T19:38:45.26 10.0 undecidable manual SG 89 0.2997 -0.14 0.5
--.SFI.Z. 2003-09-15T19:38:42.68 10.0 undecidable manual PN 95 0.5217 -0.2 0.6
--.SEI.Z. 2003-09-15T19:38:42.76 10.0 undecidable manual SG 60 0.1887 -0.13 0.6
--.ZCCA.Z. 2003-09-15T19:38:41.24 10.0 undecidable manual PG 345 0.3996 0.02 1.9
--.VMG.Z. 2003-09-15T19:38:39.76 10.0 undecidable manual PG 89 0.2997 0.14 1.3
--.SEI.Z. 2003-09-15T19:38:38.20 10.0 undecidable manual PG 60 0.1887 0.04 2
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