Earthquake with magnitude of ML 1.4 on date 02-12-2021 and time 18:53:03 (Italy) in region 6 km SE Castel d'Aiano (BO)

A magnitude ML 1.4 earthquake occured in region: 6 km SE Castel d'Aiano (BO), on

  • 02-12-2021 17:53:03 (UTC)
  • 02-12-2021 18:53:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.241, 11.056 at 16 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Castel d'Aiano BO 6 1906 1906
Vergato BO 7 7639 9545
Grizzana Morandi BO 8 3916 13461
Camugnano BO 8 1885 15346
Castel di Casio BO 9 3448 18794
Montese MO 10 3353 22147
Gaggio Montano BO 11 4878 27025
Alto Reno Terme BO 11 6960 33985
Zocca MO 13 4719 38704
Castiglione dei Pepoli BO 14 5648 44352
San Benedetto Val di Sambro BO 14 4315 48667
Lizzano in Belvedere BO 16 2212 50879
Sambuca Pistoiese PT 16 1626 52505
Marzabotto BO 16 6779 59284
Monzuno BO 18 6328 65612

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NE of Pistoia (90315 inhabitants)
36 Km SW of Bologna (386663 inhabitants)
40 Km N of Prato (191150 inhabitants)
46 Km S of Modena (184973 inhabitants)
54 Km W of Imola (69797 inhabitants)
55 Km N of Scandicci (50609 inhabitants)
55 Km NW of Firenze (382808 inhabitants)
61 Km SE of Reggio nell'Emilia (171345 inhabitants)
62 Km S of Carpi (70699 inhabitants)
62 Km NE of Lucca (89046 inhabitants)
66 Km W of Faenza (58541 inhabitants)
76 Km E of Massa (69479 inhabitants)
77 Km NE of Viareggio (62467 inhabitants)
78 Km NE of Pisa (89158 inhabitants)
79 Km W of Forlì (117913 inhabitants)
79 Km E of Carrara (63133 inhabitants)
80 Km SW of Ferrara (133155 inhabitants)
85 Km SE of Parma (192836 inhabitants)
93 Km W of Ravenna (159116 inhabitants)
95 Km W of Cesena (96758 inhabitants)
97 Km NE of Livorno (159219 inhabitants)
99 Km E of La Spezia (93959 inhabitants)
Recent and historical seismicity
Seismic hazard
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
Reviewed
Rev100
ML 1.4 2021-12-02
17:53:03
44.2413 11.0562 16 2021-12-02
18:06:01
Sala Sismica INGV-Roma 98066331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-02 17:53:03 ± 0.2
Latitude 44.2413 ± 0.0090
Longitude 11.0562 ± 0.0113
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 98066331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 913
Semi-minor axis of confidence ellipse (meter) 420
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 150
Circular confidence region, given by single value of horizontal uncertainty (meter) 910
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.37502
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 98066331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-02 18:06:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GIZZ.HHZ. 2021-12-02T17:55:01.70 3.0 negative manual Pg 23.07 0
IT.ORP.HGZ. 2021-12-02T17:55:00.19 3.0 undecidable manual Sn 1.91 0
IX.CLT3.EHZ.02 2021-12-02T17:54:19.88 3.0 undecidable manual Pn 7.33 0
IV.BSSO.HNZ. 2021-12-02T17:54:14.34 3.0 undecidable manual Pg 13.97 0
IV.MCRV.HHZ. 2021-12-02T17:54:14.01 3.0 undecidable manual Pn 1.81 0
OT.OT14.EHZ. 2021-12-02T17:54:13.98 3.0 undecidable manual Pn 6.72 0
IV.PAOL.HHZ. 2021-12-02T17:54:10.68 3.0 undecidable manual Pn 5.04 0
IV.NRCA.HHZ. 2021-12-02T17:54:03.61 3.0 undecidable manual Sn -0.15 0
IV.POFI.HHZ. 2021-12-02T17:53:53.92 3.0 undecidable manual Pn 1.11 0
IV.VOBA.EHZ. 2021-12-02T17:53:45.58 3.0 undecidable manual S -1.64 0
RF.GEPF.HHZ. 2021-12-02T17:53:44.60 3.0 undecidable manual Pn 2.34 0
IV.PE3.EHZ. 2021-12-02T17:53:43.09 3.0 undecidable manual S 1.17 0
IV.COR1.EHZ. 2021-12-02T17:53:35.09 3.0 negative manual Pg 5.38 0
GU.RNCA.HHZ. 2021-12-02T17:53:35.94 3.0 undecidable manual Pg 6.29 0
IV.BDI.HHZ. 2021-12-02T17:53:17.48 0.6 undecidable manual S 242 0.375 99 0.1 49
GU.POPM.HHZ. 2021-12-02T17:53:15.17 0.6 undecidable manual S 228 0.2914 103 0.25 49
IV.CRMI.HHZ. 2021-12-02T17:53:14.81 3.0 undecidable manual P 0
IV.MTRZ.HHE. 2021-12-02T17:53:14.59 0.6 undecidable manual S 75 0.2734 105 0.18 50
IV.MOCL.EHZ. 2021-12-02T17:53:14.27 0.6 undecidable manual S 159 0.2527 106 0.45 47
GU.GSCL.HHE. 2021-12-02T17:53:11.89 0.6 undecidable manual P 288 0.3525 100 0.69 42
IV.BDI.HHZ. 2021-12-02T17:53:11.43 0.6 undecidable manual P 242 0.375 99 -0.17 49
IV.MPPT.EHZ. 2021-12-02T17:53:10.06 0.3 undecidable manual P 175 0.2851 104 -0.01 77
IV.SEI.HHE. 2021-12-02T17:53:10.06 0.6 undecidable manual P 131 0.286 104 -0.04 51
IV.ZCCA.HHZ. 2021-12-02T17:53:10.94 0.6 undecidable manual S 332 0.1232 130 0.54 47
GU.POPM.HHZ. 2021-12-02T17:53:10.02 0.3 undecidable manual P 228 0.2914 103 -0.16 74
IV.MTRZ.HHE. 2021-12-02T17:53:10.43 0.3 undecidable manual P 75 0.2734 105 0.55 68
IV.MOCL.EHZ. 2021-12-02T17:53:09.31 0.6 undecidable manual P 159 0.2527 106 -0.23 49
IV.FNVD.HHZ. 2021-12-02T17:53:09.87 0.6 undecidable manual S 147 0.0881 142 0.21 51
IV.VISG.HHZ. 2021-12-02T17:53:09.57 0.3 undecidable manual P 101 0.2761 104 -0.35 72
IV.FNVD.HHZ. 2021-12-02T17:53:06.83 0.1 positive manual P 147 0.0881 142 -0.31 100
IV.ZCCA.HHZ. 2021-12-02T17:53:06.90 0.1 negative manual P 332 0.1232 130 -0.67 90
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FNVD.HHE. ML:1.9 0.000736137 0.1024 AML other m 2021-12-02T17:53:09.91
IV.FNVD.HHN. ML:2.1 0.0010785 1.92 AML other m 2021-12-02T17:53:09.02
IV.ZCCA.HHN. ML:1.5 0.00025762945 0.3584 AML other m 2021-12-02T17:53:11.65
IV.ZCCA.HHE. ML:1.3 0.00017 0.3 AML other m 2021-12-02T17:53:11.54
GU.POPM.HHN. ML:1.4 9.9E-5 1.08 AML other m 2021-12-02T17:53:15.90
GU.POPM.HHE. ML:1.4 0.0001015 0.28 AML other m 2021-12-02T17:53:15.46
IV.VOBA.EHE. ML:2.8 0.000263 0.1 AML other m 2021-12-02T17:53:56.33
IV.VOBA.EHN. ML:2.6 0.0001925 0.24 AML other m 2021-12-02T17:53:56.59
IT.ORP.HGN. ML:6.4 0.08845 0.02 AML other m 2021-12-02T17:54:23.04
IT.ORP.HGE. ML:6.1 0.0464 0.02 AML other m 2021-12-02T17:54:23.23
IV.NRCA.HHN. ML:2.9 0.000197 0.08 AML other m 2021-12-02T17:54:34.54
IV.NRCA.HHE. ML:3 0.000216 0.08 AML other m 2021-12-02T17:54:34.55
IV.ZCCA.HNE. ML:1.3 0.000167145 0.3072 AML other m 2021-12-02T17:53:11.69
IV.ZCCA.HNN. ML:1.5 0.00025311295 0.4992 AML other m 2021-12-02T17:53:11.64
IV.MOCL.EHE. ML:0.9 4.1076845E-5 0.1664 AML other m 2021-12-02T17:53:15.86
IV.MOCL.EHN. ML:0.9 3.678153E-5 0.1152 AML other m 2021-12-02T17:53:15.77
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