INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.1 on date 03-12-2018 and time 12:18:28 (Italy) in region 4 km NW Piteglio (PT)

A magnitude ML 1.1 earthquake occured in region: 4 km NW Piteglio (PT), on

  • 03-12-2018 11:18:28 (UTC)
  • 03-12-2018 12:18:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.05, 10.72 at 8 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
Piteglio PT 4 1683 1683
San Marcello Pistoiese PT 6 6416 8099
Cutigliano PT 6 1488 9587
Abetone PT 11 621 10208
Bagni di Lucca LU 11 6161 16369
Marliana PT 13 3210 19579
Villa Basilica LU 15 1633 21212
Massa e Cozzile PT 16 7983 29195
Fiumalbo MO 16 1280 30475
Coreglia Antelminelli LU 16 5215 35690
Borgo a Mozzano LU 16 6994 42684
Pescia PT 17 19644 62328
Serravalle Pistoiese PT 18 11659 73987
Fanano MO 19 2989 76976
Lizzano in Belvedere BO 19 2212 79188
Uzzano PT 19 5770 84958
Montecatini-Terme PT 19 20409 105367
Buggiano PT 19 8825 114192
Barga LU 19 10034 124226
Pievepelago MO 20 2222 126448
Pieve a Nievole PT 20 9266 135714

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NW of Pistoia (90315 inhabitants)
29 Km NE of Lucca (89046 inhabitants)
35 Km NW of Prato (191150 inhabitants)
43 Km E of Viareggio (62467 inhabitants)
45 Km NE of Pisa (89158 inhabitants)
47 Km E of Massa (69479 inhabitants)
49 Km NW of Scandicci (50609 inhabitants)
50 Km E of Carrara (63133 inhabitants)
53 Km NW of Firenze (382808 inhabitants)
65 Km NE of Livorno (159219 inhabitants)
68 Km S of Modena (184973 inhabitants)
70 Km SW of Bologna (386663 inhabitants)
72 Km E of La Spezia (93959 inhabitants)
72 Km S of Reggio nell'Emilia (171345 inhabitants)
83 Km S of Carpi (70699 inhabitants)
86 Km W of Imola (69797 inhabitants)
89 Km SE of Parma (192836 inhabitants)
95 Km NW of Siena (53903 inhabitants)
96 Km W of Faenza (58541 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.1 2018-12-03
11:18:28
44.05 10.72 8 2018-12-03
11:30:25
Sala Sismica INGV-Roma 63609491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-03 11:18:28 ± 0.1
Latitude 44.05 ± 0.01
Longitude 10.72 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 63609491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 682
Semi-minor axis of confidence ellipse (meter) 678
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 225
Circular confidence region, given by single value of horizontal uncertainty (meter) 680
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.84536
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 63609491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-03 11:30:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.IST3.HHZ. 2018-12-03T11:20:19.05 3.0 negative manual Pg 18.950001 0
GE.MATE.HHZ. 2018-12-03T11:20:11.58 3.0 negative manual Pg 20.82 0
IV.MTGR.HHZ. 2018-12-03T11:20:04.14 3.0 negative manual Pn 2.49 0
GU.RSP.HHZ. 2018-12-03T11:19:57.60 3.0 undecidable manual Sg 12.33 0
IV.AMUR.HHZ. 2018-12-03T11:19:48.08 3.0 undecidable manual Pn 0.38 0
IV.FAGN.HHZ. 2018-12-03T11:19:47.68 3.0 undecidable manual Sn 1.2 0
IV.PAOL.HHZ. 2018-12-03T11:19:30.47 3.0 negative manual Pn -0.62 0
IV.ZONE.HHZ. 2018-12-03T11:19:20.32 3.0 undecidable manual Sn -0.7 0
IV.FIAM.HHZ. 2018-12-03T11:19:09.27 3.0 negative manual Pn 0.78 0
RD.PGF.BHZ. 2018-12-03T11:19:01.12 3.0 undecidable manual Pn -0.66 0
IV.EUCT.HNZ. 2018-12-03T11:18:56.55 3.0 undecidable manual Pn 0.61 0
IV.BRSN.EHZ. 2018-12-03T11:18:48.55 3.0 negative manual P 1.92 0
IV.RIBO.EHZ.01 2018-12-03T11:18:48.12 3.0 undecidable manual P -1.99 0
IV.NDIM.HNZ. 2018-12-03T11:18:43.95 0.3 negative manual P 8 0.8454 50 -0.43 61
IV.CRMI.HNE. 2018-12-03T11:18:40.63 0.6 undecidable manual S 144 0.3139 103 0.15 45
MN.VLC.HNE. 2018-12-03T11:18:39.55 0.3 undecidable manual S 294 0.2653 105 0.89 56
IV.MPPT.EHN. 2018-12-03T11:18:39.47 0.6 undecidable manual S 109 0.2797 104 0.29 46
GU.SARM.EHZ. 2018-12-03T11:18:38.54 0.3 undecidable manual S 300 0.2671 105 -0.19 70
GU.MAIM.HHN. 2018-12-03T11:18:37.03 0.3 undecidable manual S 231 0.2149 108 0.22 70
IV.FNVD.HHZ. 2018-12-03T11:18:35.68 0.6 undecidable manual P 68 0.3094 103 0.54 42
GU.CARD.HHE. 2018-12-03T11:18:35.46 0.3 undecidable manual S 262 0.1754 112 0.11 72
GU.GSCL.HHZ. 2018-12-03T11:18:35.45 0.3 undecidable manual P 342 0.3157 103 0.19 68
IV.CRMI.HNE. 2018-12-03T11:18:35.22 0.1 undecidable manual P 144 0.3139 103 -0.02 94
MN.VLC.HNE. 2018-12-03T11:18:34.14 0.6 undecidable manual P 294 0.2653 105 -0.04 48
IV.SEI.HHZ. 2018-12-03T11:18:34.95 3.0 undecidable manual P -1.84 0
IV.MPPT.EHN. 2018-12-03T11:18:34.67 0.6 undecidable manual P 109 0.2797 104 0.19 47
GU.SARM.EHZ. 2018-12-03T11:18:34.00 1.0 positive manual P 300 0.2671 105 -0.23 23
GU.MAIM.HHN. 2018-12-03T11:18:33.03 0.1 undecidable manual P 231 0.2149 108 -0.09 97
IV.BDI.HHZ. 2018-12-03T11:18:32.63 0.3 undecidable manual S 278 0.0926 127 0.06 75
GU.CARD.HHE. 2018-12-03T11:18:31.51 0.1 undecidable manual P 262 0.1754 112 -0.76 81
IV.BDI.HHZ. 2018-12-03T11:18:30.69 0.1 positive manual P 278 0.0926 127 0.02 100
GU.POPM.HHZ. 2018-12-03T11:18:29.53 0.1 undecidable manual P 103 0.0243 161 -0.21 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.POPM.HHE. ML:0 0.00109650815 0.224 AML other m 2018-12-03T11:18:31.89
GU.POPM.HHN. ML:0 0.0020441695 0.1792 AML other m 2018-12-03T11:18:31.02
IV.BDI.HHN. ML:0.9 0.00011899875 0.2816 AML other m 2018-12-03T11:18:34.12
IV.BDI.HNE. ML:1 0.00014749293 0.2752 AML other m 2018-12-03T11:18:34.70
IV.BDI.HNN. ML:1.1 0.000159449 0.3008 AML other m 2018-12-03T11:18:34.27
IV.BDI.HHE. ML:1 0.0001311926 0.3968 AML other m 2018-12-03T11:18:33.56
GU.SARM.EHN. ML:1.3 0.000103470875 0.4416 AML other m 2018-12-03T11:18:39.84
GU.SARM.EHE. ML:1.5 0.00017304875 0.3776 AML other m 2018-12-03T11:18:39.57
IV.NDIM.HNN. ML:3 0.00120907465 0.0576 AML other m 2018-12-03T11:18:46.52
IV.EUCT.HNN. ML:3.3 0.00074213885 0.0832 AML other m 2018-12-03T11:19:01.16
IV.EUCT.HNE. ML:3.1 0.0005162566 0.0576 AML other m 2018-12-03T11:19:01.16
RD.PGF.BHE. ML:2.5 8.0248045E-5 2.0416 AML other m 2018-12-03T11:19:10.05
RD.PGF.BHN. ML:2.6 9.0742945E-5 3.3984 AML other m 2018-12-03T11:19:28.60
IV.FIAM.HNE. ML:3.4 0.0004098111 1.12 AML other m 2018-12-03T11:19:30.57
IV.FIAM.HNN. ML:3 0.00014970068 0.8384 AML other m 2018-12-03T11:19:52.16
IV.PAOL.HNE. ML:3.6 0.00013687735 0.6912 AML other m 2018-12-03T11:19:35.78
IV.PAOL.HHN. ML:3.1 4.559663E-5 0.2624 AML other m 2018-12-03T11:19:57.53
IV.PAOL.HNN. ML:3.8 0.0002365441 0.7744 AML other m 2018-12-03T11:19:32.27
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download