Earthquake with magnitude of ML 2.9 on date 02-11-2011 and time 20:15:49 (Italy) in region 5 km NE Firenzuola (FI)

A magnitude ML 2.9 earthquake occured in region: 5 km NE Firenzuola (FI), on

  • 02-11-2011 19:15:49 (UTC)
  • 02-11-2011 20:15:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1580, 11.4170 at 25 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
Firenzuola FI 5 4726 4726
Castel del Rio BO 9 1246 5972
Monghidoro BO 11 3749 9721
Palazzuolo sul Senio FI 12 1154 10875
Loiano BO 15 4294 15169
Fontanelice BO 16 1943 17112
San Benedetto Val di Sambro BO 16 4315 21427
Monzuno BO 18 6328 27755
Casola Valsenio RA 18 2617 30372
Marradi FI 18 3139 33511
Monterenzio BO 19 6035 39546
Borgo Tossignano BO 19 3288 42834

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km SW of Imola (69797 inhabitants)
38 Km S of Bologna (386663 inhabitants)
40 Km W of Faenza (58541 inhabitants)
40 Km NE of Prato (191150 inhabitants)
45 Km N of Firenze (382808 inhabitants)
47 Km NE of Pistoia (90315 inhabitants)
48 Km NE of Scandicci (50609 inhabitants)
50 Km W of Forlì (117913 inhabitants)
66 Km W of Cesena (96758 inhabitants)
67 Km SE of Modena (184973 inhabitants)
69 Km W of Ravenna (159116 inhabitants)
77 Km S of Ferrara (133155 inhabitants)
81 Km E of Lucca (89046 inhabitants)
81 Km SE of Carpi (70699 inhabitants)
85 Km NW of Arezzo (99543 inhabitants)
87 Km SE of Reggio nell'Emilia (171345 inhabitants)
92 Km W of Rimini (147750 inhabitants)
94 Km N of Siena (53903 inhabitants)
95 Km NE of Pisa (89158 inhabitants)
99 Km E of Viareggio (62467 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 2.9 2011-11-02
19:15:49
44.158 11.417 25 2014-10-21
12:27:13
Bollettino Sismico Italiano INGV 1304239
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2011-11-02 19:15:49 ± 0.11
Latitude 44.1580 ± 0.0099
Longitude 11.4170 ± 0.0113
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-SISPICK
Event type earthquake
Origin ID 1304239

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 969
Semi-minor axis of confidence ellipse (meter) 719
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 215
Circular confidence region, given by single value of horizontal uncertainty (meter) 1421.3
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 107
Number of defining phases 58
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.87
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.74289
Number of stations at which the event was observed 94
Number of stations from which data was used for origin computation 53
Magnitude information

ML:2.9

Field Value
Value 2.9
Uncertainty 0.4
Num. used stations
Type of magnitude ML
Reference to an origin 1304239
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-06 01:52:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BRMO.HHN. 2011-11-02T19:17:04.09 10.0 undecidable manual Sn 0 0 0
IV.MABI.HHE. 2011-11-02T19:16:51.34 10.0 undecidable manual Sn 0 0 0
IV.INTR.HHZ. 2011-11-02T19:16:46.86 10.0 undecidable manual Sn 0 0 0
IV.CTL8.EHE. 2011-11-02T19:16:45.29 10.0 undecidable manual Sn 0 0 0
NI.ACOM.HHZ. 2011-11-02T19:16:40.81 10.0 undecidable manual Sn 0 0 0
IV.INTR.HHZ. 2011-11-02T19:16:39.58 10.0 undecidable manual Pn 0 0 0
MN.TUE.HHZ. 2011-11-02T19:16:39.52 10.0 undecidable manual Pn 0 0 0
IV.SENI.EHE. 2011-11-02T19:16:39.25 10.0 undecidable manual Pn 0 0 0
IV.VARE.HHN. 2011-11-02T19:16:36.68 10.0 undecidable manual Pn 0 0 0
CH.BERNI.HHZ. 2011-11-02T19:16:35.59 10.0 undecidable manual Pn 0 0 0
IV.VCEL.EHZ. 2011-11-02T19:16:35.88 10.0 undecidable manual Pn 0 0 0
CH.MUGIO.HHE. 2011-11-02T19:16:34.40 10.0 undecidable manual Pn 0 0 0
SI.MOSI.HHZ. 2011-11-02T19:16:34.88 10.0 undecidable manual Pn 0 0 0
IV.FAGN.HHN. 2011-11-02T19:16:34.22 10.0 undecidable manual Pn 0 0 0
NI.AGOR.HHE. 2011-11-02T19:16:34.74 10.0 undecidable manual Sn 0 0 0
SI.RISI.HHZ. 2011-11-02T19:16:34.63 10.0 undecidable manual Pn 0 0 0
NI.ACOM.HHZ. 2011-11-02T19:16:33.02 10.0 undecidable manual Pn 0 0 0
IV.BRMO.HHN. 2011-11-02T19:16:33.04 10.0 undecidable manual Pn 0 0 0
SI.KOSI.HHZ. 2011-11-02T19:16:33.27 10.0 undecidable manual Sn 0 0 0
IV.FIAM.HHZ. 2011-11-02T19:16:33.36 10.0 undecidable manual Sn 0 0 0
IV.T0104.HHZ. 2011-11-02T19:16:32.68 10.0 undecidable manual Pn 0 0 0
CH.FUSIO.HHE. 2011-11-02T19:16:32.34 10.0 undecidable manual Pn 0 0 0
IV.FIAM.HHZ. 2011-11-02T19:16:30.03 10.0 undecidable manual Pn 0 0 0
IV.PTCC.HHE. 2011-11-02T19:16:30.93 10.0 undecidable manual Pn 0 0 0
IV.FVI.HHE. 2011-11-02T19:16:30.29 10.0 undecidable manual Pn 0 0 0
IV.CAMP.HHE. 2011-11-02T19:16:30.84 10.0 undecidable manual Pn 0 0 0
IV.OFFI.HHE. 2011-11-02T19:16:30.29 10.0 undecidable manual Pn 0 0 0
NI.AGOR.HHE. 2011-11-02T19:16:29.70 10.0 undecidable manual Pn 0 0 0
SI.ABSI.HHZ. 2011-11-02T19:16:29.94 10.0 undecidable manual Pn 0 0 0
IV.TERO.HHE. 2011-11-02T19:16:29.70 10.0 undecidable manual Pn 0 0 0
SI.KOSI.HHZ. 2011-11-02T19:16:26.21 10.0 undecidable manual Pn 0 0 0
IV.APPI.EHZ. 2011-11-02T19:16:26.45 10.0 undecidable manual Pn 0 0 0
NI.SABO.HHZ. 2011-11-02T19:16:26.02 10.0 undecidable manual Pn 0 0 0
IV.SMA1.EHZ. 2011-11-02T19:16:26.68 10.0 undecidable manual Pn 0 0 0
IV.STAL.HHZ. 2011-11-02T19:16:24.61 10.0 undecidable manual Pn 0 0 0
IV.MABI.HHE. 2011-11-02T19:16:24.02 10.0 undecidable manual Pn 0 0 0
IV.LNSS.HHZ. 2011-11-02T19:16:24.63 10.0 undecidable manual Pn 0 0 0
IV.CTL8.EHE. 2011-11-02T19:16:24.22 10.0 undecidable manual Pn 0 0 0
MN.TRI.BHE. 2011-11-02T19:16:23.73 10.0 undecidable manual Pn 0 0 0
IV.CESX.HHZ. 2011-11-02T19:16:22.04 10.0 undecidable manual Pn 0 0 0
IV.NRCA.HHZ. 2011-11-02T19:16:22.92 10.0 undecidable manual Pn 0 0 0
IV.LATE.HHN. 2011-11-02T19:16:22.18 10.0 undecidable manual Pn 0 0 0
IV.GUMA.HHZ. 2011-11-02T19:16:21.93 10.0 undecidable manual Pn 0 0 0
IV.MAGA.HHZ. 2011-11-02T19:16:20.32 10.0 undecidable manual Pn 0 0 0
IV.FDMO.HHE. 2011-11-02T19:16:20.61 10.0 undecidable manual Pn 0 0 0
IV.CESI.HHZ. 2011-11-02T19:16:19.06 10.0 undecidable manual Pn 0 0 0
IV.BLLA.EHE. 2011-11-02T19:16:19.19 10.0 undecidable manual Pn 0 0 0
IV.BOB.HHZ. 2011-11-02T19:16:18.05 0.3 undecidable manual Pg 294 169.8966 1.583 30
NI.CGRP.HHE. 2011-11-02T19:16:17.16 0.3 undecidable manual Pg 9 193.4619 -2.24 16
IV.CING.HHZ. 2011-11-02T19:16:17.06 0.6 undecidable manual Pg 121 166.9107 0.975 27
IV.MCIV.HHZ. 2011-11-02T19:16:17.29 10.0 undecidable manual Pn 0 0 0
GU.SC2M.HHZ. 2011-11-02T19:16:16.35 0.3 undecidable manual Pg 281 151.9368 2.122 21
IV.SALO.HHZ. 2011-11-02T19:16:16.84 0.6 undecidable manual Pg 337 176.49 -0.44 32
IV.MSSA.HHZ. 2011-11-02T19:16:15.12 0.6 undecidable manual Pg 277 151.9368 0.887 31
IV.SNTG.HHZ. 2011-11-02T19:16:15.70 0.6 undecidable manual Pg 129 158.0196 0.715 31
IV.CASP.HHN. 2011-11-02T19:16:14.08 0.3 undecidable manual Pg 196 158.0196 -0.912 43
IV.ATTE.HHE. 2011-11-02T19:16:14.44 10.0 undecidable manual Pg 0 0 0
IV.ROVR.HHZ. 2011-11-02T19:16:14.28 0.6 undecidable manual Pg 351 167.3103 -1.862 16
IV.MGAB.HHN. 2011-11-02T19:16:13.42 0.6 undecidable manual Pg 158 149.0397 -0.451 36
IV.SACS.HHZ. 2011-11-02T19:16:13.84 0.6 undecidable manual Pg 165 150.5382 -0.214 38
IV.ATCC.EHZ. 2011-11-02T19:16:13.19 0.6 undecidable manual Pg 137 145.9428 -0.291 38
IV.ARVD.HHE. 2011-11-02T19:16:13.57 0.6 undecidable manual Pg 120 142.3464 0.537 36
IV.SSFR.HHE. 2011-11-02T19:16:12.73 0.3 undecidable manual Pg 126 135.5643 0.537 54
IV.GROG.HHZ. 2011-11-02T19:16:12.58 0.3 undecidable manual Pg 237 146.6421 -0.989 43
IV.ARCI.HHZ. 2011-11-02T19:16:12.48 0.3 undecidable manual Pg 178 145.0437 -0.889 46
IV.MURB.HHE. 2011-11-02T19:16:11.89 0.3 undecidable manual Pg 138 133.2666 -0.014 62
IV.PRMA.HHE. 2011-11-02T19:16:10.14 0.3 undecidable manual Pg 308 110.2119 1.626 34
IV.MPAG.EHZ. 2011-11-02T19:16:10.28 0.3 undecidable manual Pg 118 122.3886 -0.09 63
IV.FSSB.HHN. 2011-11-02T19:16:10.01 0.6 undecidable manual Pg 115 120.2907 -0.055 42
IV.FRON.EHZ. 2011-11-02T19:16:10.81 0.3 undecidable manual Pg 124 126.5733 -0.205 61
IV.PLMA.HHZ. 2011-11-02T19:16:10.26 0.3 undecidable manual Pg 265 125.0859 -0.53 55
IV.PESA.HHZ. 2011-11-02T19:16:10.53 0.6 undecidable manual Pg 101 115.995 1.125 29
IV.TEOL.HHN. 2011-11-02T19:16:09.90 0.3 undecidable manual Pg 9 135.0648 -2.225 20
IV.ATVO.HHZ. 2011-11-02T19:16:09.80 0.1 positive manual Pg 137 117.0939 0.233 81
IV.TRIF.HHZ. 2011-11-02T19:16:09.94 0.3 undecidable manual Pg 200 122.8881 -0.517 56
IV.SASS.HHZ. 2011-11-02T19:16:08.42 0.3 undecidable manual Pg 211 115.5954 -0.922 47
IV.SBPO.HHZ. 2011-11-02T19:16:08.65 0.6 undecidable manual Pg 339 106.5156 0.695 36
IV.PIEI.HHE. 2011-11-02T19:16:08.46 0.3 undecidable manual Pg 127 112.998 -0.487 59
IV.CRMI.HHN. 2011-11-02T19:16:08.38 0.6 undecidable manual Sg 221 54.2013 0.89 39
IV.ATPC.HHN. 2011-11-02T19:16:08.78 0.3 undecidable manual Pg 132 112.1988 -0.037 65
IV.ATMC.EHN. 2011-11-02T19:16:07.23 0.3 undecidable manual Pg 142 100.4217 0.196 64
IV.FROS.HHZ. 2011-11-02T19:16:07.93 0.6 undecidable manual Pg 191 107.3148 -0.14 42
IV.ASQU.HHZ. 2011-11-02T19:16:07.28 0.6 undecidable manual Sg 143 49.9167 0.868 38
IV.CAFI.HHZ. 2011-11-02T19:16:07.50 0.3 undecidable manual Pg 154 102.0201 0.237 63
IV.NOVE.EHE. 2011-11-02T19:16:06.52 0.3 undecidable manual Pg 322 90.0432 1.072 48
IV.BADI.EHZ. 2011-11-02T19:16:06.51 0.3 undecidable manual Pg 137 97.8243 -0.119 66
IV.SFI.EHN. 2011-11-02T19:16:05.69 0.6 undecidable manual Sg 129 44.4222 0.659 41
MN.VLC.HHZ. 2011-11-02T19:16:04.14 0.3 undecidable manual Pg 270 81.9513 -0.086 67
IV.PARC.HHN. 2011-11-02T19:16:04.80 0.1 positive manual Pg 130 86.6466 -0.142 89
IV.CPGN.EHZ. 2011-11-02T19:16:04.68 0.1 undecidable manual Pg 118 82.3509 0.401 84
IV.RAVA.EHE. 2011-11-02T19:16:03.53 0.3 undecidable manual Pg 341 70.374 1.054 50
IV.CSNT.HHN. 2011-11-02T19:16:03.91 0.1 undecidable manual Pg 188 76.6677 0.479 85
GU.MAIM.HHZ. 2011-11-02T19:16:03.85 0.1 negative manual Pg 250 78.5658 0.137 91
IV.BDI.HHZ. 2011-11-02T19:16:01.66 0.3 undecidable manual Pg 261 66.1893 -0.19 67
IV.FNVD.HHZ. 2011-11-02T19:16:00.17 0.6 undecidable manual Sg 273 23.3544 -0.064 50
IV.CRMI.HHN. 2011-11-02T19:16:00.39 0.1 negative manual Pg 221 54.2013 0.307 92
IV.ASQU.HHZ. 2011-11-02T19:15:59.40 0.1 positive manual Pg 143 49.9167 -0.062 97
IV.MTRZ.HHE. 2011-11-02T19:15:59.13 0.3 undecidable manual Sg 2 17.1717 0.047 77
IV.FIR.HHZ. 2011-11-02T19:15:59.33 0.6 undecidable manual Pg 197 44.5221 0.651 43
IV.SFI.EHN. 2011-11-02T19:15:58.43 0.1 positive manual Pg 129 44.4222 -0.231 95
IV.ZCCA.HHZ. 2011-11-02T19:15:58.68 0.3 undecidable manual Pg 302 40.9257 0.501 68
IV.PTF.SHZ. 2011-11-02T19:15:57.18 0.3 undecidable manual Pg 232 35.3424 -0.224 71
IV.IMOL.EHZ. 2011-11-02T19:15:56.31 0.3 undecidable manual Pg 49 34.1436 -0.937 58
IV.FNVD.HHZ. 2011-11-02T19:15:55.04 0.1 undecidable manual Pg 273 23.3544 -0.854 78
IV.VMG.SHZ. 2011-11-02T19:15:55.87 0.1 positive manual Pg 155 24.0537 -0.104 100
IV.MTRZ.HHE. 2011-11-02T19:15:54.38 0.1 positive manual Pg 2 17.1717 -0.847 81
IV.SEI.SHZ. 2011-11-02T19:15:54.58 0.1 positive manual Pg 202 12.4764 -0.243 99
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download