Earthquake with magnitude of ML 2.5 on date 22-11-2011 and time 15:47:32 (Italy) in region 2 km SW Alto Reno Terme (BO)

A magnitude ML 2.5 earthquake occured in region: 2 km SW Alto Reno Terme (BO), on

  • 22-11-2011 14:47:32 (UTC)
  • 22-11-2011 15:47:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1450, 10.9540 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Alto Reno Terme BO 2 6960 6960
Lizzano in Belvedere BO 5 2212 9172
Sambuca Pistoiese PT 6 1626 10798
Gaggio Montano BO 6 4878 15676
Castel di Casio BO 7 3448 19124
Camugnano BO 11 1885 21009
Montese MO 14 3353 24362
Fanano MO 14 2989 27351
Castel d'Aiano BO 16 1906 29257
Castiglione dei Pepoli BO 16 5648 34905
San Marcello Pistoiese PT 16 6416 41321
Cutigliano PT 17 1488 42809
Sestola MO 17 2508 45317
Cantagallo PO 18 3105 48422
Vernio PO 19 6060 54482
Piteglio PT 20 1683 56165

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km N of Pistoia (90315 inhabitants)
32 Km NW of Prato (191150 inhabitants)
47 Km NW of Scandicci (50609 inhabitants)
48 Km NW of Firenze (382808 inhabitants)
49 Km NE of Lucca (89046 inhabitants)
50 Km SW of Bologna (386663 inhabitants)
56 Km S of Modena (184973 inhabitants)
64 Km E of Viareggio (62467 inhabitants)
65 Km W of Imola (69797 inhabitants)
65 Km NE of Pisa (89158 inhabitants)
66 Km E of Massa (69479 inhabitants)
67 Km SE of Reggio nell'Emilia (171345 inhabitants)
69 Km E of Carrara (63133 inhabitants)
71 Km S of Carpi (70699 inhabitants)
76 Km W of Faenza (58541 inhabitants)
84 Km NE of Livorno (159219 inhabitants)
87 Km W of Forlì (117913 inhabitants)
88 Km SE of Parma (192836 inhabitants)
90 Km E of La Spezia (93959 inhabitants)
93 Km SW of Ferrara (133155 inhabitants)
97 Km NW of Siena (53903 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 2.1
ML 2.5
2011-11-22
14:47:32
44.145 10.954 9 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1311739
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-11-22 14:47:32 ± 0.13
Latitude 44.1450 ± 0.0081
Longitude 10.9540 ± 0.0088
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 1311739

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 708
Semi-minor axis of confidence ellipse (meter) 687
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 147
Circular confidence region, given by single value of horizontal uncertainty (meter) 1140.2
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 92
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.58
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.89033
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations
Type of magnitude ML
Reference to an origin 1311739
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:02:53

Md:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations
Type of magnitude Md
Reference to an origin 1311739
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 02:02:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MCRV.HHZ. 2011-11-22T14:48:04.90 10.0 undecidable manual Pg 0 0 0
IV.ASQU.HHE. 2011-11-22T14:47:57.11 10.0 undecidable manual Pg 0 0 0
IV.TEOL.HHZ. 2011-11-22T14:47:57.38 10.0 undecidable manual Pg 0 0 0
IV.SFI.EHE. 2011-11-22T14:47:56.43 0.3 undecidable manual Sg 110 76.0683 0.618 59
IV.CRE.HHN. 2011-11-22T14:47:50.16 0.3 undecidable manual Pg 126 98.8233 0.695 55
IV.PLMA.HHN. 2011-11-22T14:47:47.94 0.3 undecidable manual Pg 263 88.3449 0.104 66
IV.CSNT.HHE. 2011-11-22T14:47:47.54 0.3 undecidable manual Pg 160 79.2651 1.092 48
GU.MAIM.HHZ. 2011-11-22T14:47:47.46 0.3 undecidable manual Sg 235 44.9217 -0.041 72
MN.VLC.HHZ. 2011-11-22T14:47:47.87 0.1 undecidable manual Sg 272 45.2214 0.294 91
IV.CRMI.HHZ. 2011-11-22T14:47:46.70 0.3 undecidable manual Sg 178 39.4272 0.663 62
IV.SFI.EHE. 2011-11-22T14:47:45.90 0.3 undecidable manual Pg 110 76.0683 -0.052 68
IV.BDI.HHZ. 2011-11-22T14:47:43.22 0.3 undecidable manual Sg 252 29.8479 -0.045 74
IV.ZCCA.HHZ. 2011-11-22T14:47:42.02 0.1 undecidable manual Sg 4 22.8549 1.072 71
IV.PTF.SHZ. 2011-11-22T14:47:41.31 0.3 undecidable manual Sg 156 22.4553 0.489 68
IV.VMG.SHZ. 2011-11-22T14:47:41.37 0.1 undecidable manual Pg 113 51.2154 -0.756 78
GU.MAIM.HHZ. 2011-11-22T14:47:40.69 0.1 undecidable manual Pg 235 44.9217 -0.462 88
IV.CRMI.HHZ. 2011-11-22T14:47:40.09 0.1 undecidable manual Pg 178 39.4272 -0.217 94
MN.VLC.HHZ. 2011-11-22T14:47:40.92 0.1 undecidable manual Pg 272 45.2214 -0.275 92
IV.MTRZ.HHN. 2011-11-22T14:47:40.51 0.1 undecidable manual Pg 63 41.8248 -0.157 95
IV.BDI.HHZ. 2011-11-22T14:47:38.39 0.1 undecidable manual Pg 252 29.8479 -0.316 93
IV.SEI.SHE. 2011-11-22T14:47:38.48 0.1 undecidable manual Pg 107 33.744 -0.954 74
IV.BOB.HHZ. 2011-11-22T14:47:38.29 10.0 undecidable manual Pg 0 0 0
IV.ZCCA.HHZ. 2011-11-22T14:47:37.32 0.1 undecidable manual Pg 4 22.8549 -0.049 100
IV.PTF.SHZ. 2011-11-22T14:47:37.40 0.1 undecidable manual Pg 156 22.4553 0.103 99
IV.FNVD.HHZ. 2011-11-22T14:47:37.83 0.1 undecidable manual Sg 79 13.6752 -0.238 98
IV.FNVD.HHZ. 2011-11-22T14:47:35.46 0.1 undecidable manual Pg 79 13.6752 -0.244 98
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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