INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 0.7 on date 07-12-2018 and time 09:57:34 (Italy) in region 4 km W Piteglio (PT)

A magnitude ML 0.7 earthquake occured in region: 4 km W Piteglio (PT), on

  • 07-12-2018 08:57:34 (UTC)
  • 07-12-2018 09:57:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.05, 10.72 at 6 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 7 1488 9587
Bagni di Lucca LU 11 6161 15748
Abetone PT 12 621 16369
Marliana PT 13 3210 19579
Villa Basilica LU 14 1633 21212
Massa e Cozzile PT 15 7983 29195
Coreglia Antelminelli LU 16 5215 34410
Fiumalbo MO 16 1280 35690
Borgo a Mozzano LU 16 6994 42684
Pescia PT 16 19644 62328
Serravalle Pistoiese PT 18 11659 73987
Uzzano PT 18 5770 79757
Buggiano PT 19 8825 88582
Montecatini-Terme PT 19 20409 108991
Barga LU 19 10034 119025
Fanano MO 19 2989 122014
Lizzano in Belvedere BO 19 2212 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)
28 Km NE of Lucca (89046 inhabitants)
36 Km NW of Prato (191150 inhabitants)
43 Km E of Viareggio (62467 inhabitants)
45 Km NE of Pisa (89158 inhabitants)
46 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)
64 Km NE of Livorno (159219 inhabitants)
69 Km S of Modena (184973 inhabitants)
70 Km SW of Bologna (386663 inhabitants)
71 Km E of La Spezia (93959 inhabitants)
73 Km S of Reggio nell'Emilia (171345 inhabitants)
83 Km S of Carpi (70699 inhabitants)
86 Km W of Imola (69797 inhabitants)
90 Km SE of Parma (192836 inhabitants)
95 Km NW of Siena (53903 inhabitants)
97 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 0.7 2018-12-07
08:57:34
44.05 10.72 6 2018-12-07
09:04:16
Sala Sismica INGV-Roma 63733641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-12-07 08:57:34 ± 0.14
Latitude 44.05 ± 0.01
Longitude 10.72 ± 0.01
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 63733641

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 740
Semi-minor axis of confidence ellipse (meter) 295
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 185
Circular confidence region, given by single value of horizontal uncertainty (meter) 740
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 154
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.02698
Epicentral distance of station farthest from the epicenter (degree) 0.31386
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 63733641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-12-07 09:04:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.SARM.EHZ. 2018-12-07T08:57:44.55 0.1 undecidable manual S 301 0.2662 101 -0.05 96
GU.MAIM.HHZ. 2018-12-07T08:57:42.50 0.1 undecidable manual S 231 0.2113 104 -0.02 98
IV.MTCR.EHZ. 2018-12-07T08:57:42.67 0.1 undecidable manual S 95 0.2041 104 0.41 90
GU.CARD.HHZ. 2018-12-07T08:57:41.49 0.1 undecidable manual S 263 0.1718 107 0.44 90
IV.CRMI.HNN. 2018-12-07T08:57:40.93 0.1 undecidable manual P 143 0.3139 99 -0.29 91
GU.SARM.EHZ. 2018-12-07T08:57:39.82 0.1 undecidable manual P 301 0.2662 101 -0.36 90
IV.BDI.HHZ. 2018-12-07T08:57:38.33 0.1 undecidable manual S 280 0.0899 119 0.19 97
IV.MTCR.EHZ. 2018-12-07T08:57:38.99 0.1 undecidable manual P 95 0.2041 104 0.16 95
GU.CARD.HHZ. 2018-12-07T08:57:38.08 0.1 undecidable manual P 263 0.1718 107 -0.06 98
GU.MAIM.HHZ. 2018-12-07T08:57:38.87 0.1 undecidable manual P 231 0.2113 104 -0.11 96
IV.BDI.HHZ. 2018-12-07T08:57:36.44 0.1 positive manual P 280 0.0899 119 -0.02 100
GU.POPM.HHZ. 2018-12-07T08:57:36.18 0.1 undecidable manual S 95 0.027 152 -0.2 98
GU.POPM.HHZ. 2018-12-07T08:57:35.35 0.1 undecidable manual P 95 0.027 152 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BDI.HNN. ML:0.9 0.00012937662 0.5888 AML other m 2018-12-07T08:57:40.37
IV.BDI.HHN. ML:0.7 7.8100655E-5 0.2368 AML other m 2018-12-07T08:57:40.19
IV.BDI.HHE. ML:0.7 7.8478545E-5 0.2048 AML other m 2018-12-07T08:57:39.02
IV.BDI.HNE. ML:0.9 0.00012226883 0.5888 AML other m 2018-12-07T08:57:41.96
GU.CARD.HHE. ML:0.5 2.582278E-5 0.1408 AML other m 2018-12-07T08:57:41.68
GU.CARD.HHN. ML:0.7 4.5305695E-5 0.2432 AML other m 2018-12-07T08:57:41.82
GU.MAIM.HHN. ML:0.5 1.884771E-5 0.4608 AML other m 2018-12-07T08:57:44.77
GU.MAIM.HHE. ML:0.4 1.4556135E-5 0.2368 AML other m 2018-12-07T08:57:42.87
IV.MTCR.EHE. ML:0.5 2.189807E-5 0.1216 AML other m 2018-12-07T08:57:43.24
IV.MTCR.EHN. ML:0.7 3.3929768E-5 0.16 AML other m 2018-12-07T08:57:44.52
GU.SARM.EHN. ML:1.1 6.3736905E-5 0.3776 AML other m 2018-12-07T08:57:45.59
GU.SARM.EHE. ML:1.2 9.167709E-5 0.3584 AML other m 2018-12-07T08:57:45.14
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