Earthquake with magnitude of ML 1.5 on date 12-01-2011 and time 10:28:07 (UTC) in region 3 km N Cerreto Guidi (FI)

A magnitude ML 1.5 earthquake occured in region: 3 km N Cerreto Guidi (FI), on

  • 12-01-2011 10:28:07 (UTC)
  • 12-01-2011 11:28:07 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.7870, 10.8790 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
Cerreto Guidi FI 3 10870 10870
Lamporecchio PT 4 7508 18378
Vinci FI 4 14604 32982
Larciano PT 4 6394 39376
Fucecchio FI 8 23618 62994
Empoli FI 9 48109 111103
Capraia e Limite FI 9 7670 118773
Quarrata PT 11 26190 144963
Monsummano Terme PT 11 21338 166301
Santa Croce sull'Arno PI 12 14601 180902
Carmignano PO 12 14450 195352
San Miniato PI 12 27934 223286
Ponte Buggianese PT 12 8804 232090
Pieve a Nievole PT 12 9266 241356
Montelupo Fiorentino FI 13 14098 255454
Montecatini-Terme PT 14 20409 275863
Serravalle Pistoiese PT 14 11659 287522
Chiesina Uzzanese PT 14 4552 292074
Castelfranco di Sotto PI 14 13427 305501
Poggio a Caiano PO 15 10007 315508
Buggiano PT 16 8825 324333
Montopoli in Val d'Arno PI 16 11148 335481
Agliana PT 17 17525 353006
Altopascio LU 17 15481 368487
Pistoia PT 17 90315 458802
Uzzano PT 17 5770 464572
Massa e Cozzile PT 17 7983 472555
Signa FI 18 19179 491734
Santa Maria a Monte PI 18 13253 504987
Montecarlo LU 18 4428 509415
Lastra a Signa FI 18 20156 529571
Marliana PT 19 3210 532781

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km S of Pistoia (90315 inhabitants)
21 Km SW of Prato (191150 inhabitants)
25 Km W of Scandicci (50609 inhabitants)
30 Km W of Firenze (382808 inhabitants)
31 Km E of Lucca (89046 inhabitants)
39 Km E of Pisa (89158 inhabitants)
51 Km E of Viareggio (62467 inhabitants)
53 Km E of Livorno (159219 inhabitants)
64 Km NW of Siena (53903 inhabitants)
65 Km E of Massa (69479 inhabitants)
70 Km E of Carrara (63133 inhabitants)
87 Km SW of Bologna (386663 inhabitants)
88 Km W of Arezzo (99543 inhabitants)
91 Km E of La Spezia (93959 inhabitants)
92 Km SW of Imola (69797 inhabitants)
96 Km S of Modena (184973 inhabitants)
98 Km SW of Faenza (58541 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 2.0
ML 1.5
2011-01-12
10:28:07
43.787 10.879 11 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1160439
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-01-12 10:28:07 ± 0.16
Latitude 43.7870 ± 0.0090
Longitude 10.8790 ± 0.0137
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1160439

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1158
Semi-minor axis of confidence ellipse (meter) 947
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 301
Circular confidence region, given by single value of horizontal uncertainty (meter) 1486.6
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.64302
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 5
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.0
Num. used stations
Type of magnitude ML
Reference to an origin 1160439
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:35:46

Md:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1160439
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-05 22:35:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GRFL.SHZ. 2011-01-12T10:28:29.77 0.6 undecidable manual Sg 174 71.373 0.438 44
IV.STR4.BHE. 2011-01-12T10:28:25.68 10.0 undecidable manual Sg 0 0 0
IV.VMG.SHZ. 2011-01-12T10:28:24.94 0.6 undecidable manual Sg 70 56.5989 -0.456 45
IV.FNVD.HHN. 2011-01-12T10:28:22.71 0.6 undecidable manual Sg 25 46.5201 -0.003 51
IV.STR4.BHE. 2011-01-12T10:28:21.15 10.0 undecidable manual Pg 0 0 0
IV.SASS.HHE. 2011-01-12T10:28:21.64 10.0 undecidable manual Sg 0 0 0
IV.GRFL.SHZ. 2011-01-12T10:28:20.64 0.3 undecidable manual Pg 174 71.373 0.455 66
.POPM.HHE. 2011-01-12T10:28:17.73 0.3 undecidable manual Sg 338 26.0517 0.491 71
IV.STR3.BHZ. 2011-01-12T10:28:17.57 10.0 undecidable manual Pg 0 0 0
IV.PII.SHZ. 2011-01-12T10:28:17.35 0.3 undecidable manual Sg 256 29.2485 -0.738 64
IV.VMG.SHZ. 2011-01-12T10:28:17.67 0.3 undecidable manual Pg 70 56.5989 -0.243 71
IV.FNVD.HHN. 2011-01-12T10:28:16.07 0.3 undecidable manual Pg 25 46.5201 -0.294 72
IV.SASS.HHE. 2011-01-12T10:28:13.31 10.0 undecidable manual Pg 0 0 0
.POPM.HHE. 2011-01-12T10:28:13.46 0.1 undecidable manual Pg 338 26.0517 0.257 100
IV.PII.SHZ. 2011-01-12T10:28:13.64 0.3 undecidable manual Pg 256 29.2485 -0.054 78
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