Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 07-12-2019 and time 13:42:51 (Italy) in region 4 km W Verghereto (FC)

A magnitude ML 1.6 earthquake occured in region: 4 km W Verghereto (FC), on

  • 07-12-2019 12:42:51 (UTC)
  • 07-12-2019 13:42:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.7990, 11.9530 at 19 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Verghereto FC 4 1907 1907
Bagno di Romagna FC 7 6026 7933
Chiusi della Verna AR 11 2023 9956
Bibbiena AR 16 12241 22197
Pieve Santo Stefano AR 16 3183 25380
Chitignano AR 16 899 26279
Casteldelci RN 16 407 26686
Santa Sofia FC 17 4136 30822
Poppi AR 17 6160 36982
Caprese Michelangelo AR 17 1426 38408
Pratovecchio Stia AR 19 5845 44253
Castel Focognano AR 19 3149 47402

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km N of Arezzo (99543 inhabitants)
44 Km SW of Cesena (96758 inhabitants)
48 Km S of Forlì (117913 inhabitants)
55 Km S of Faenza (58541 inhabitants)
56 Km E of Firenze (382808 inhabitants)
57 Km SW of Rimini (147750 inhabitants)
62 Km E of Scandicci (50609 inhabitants)
65 Km SE of Imola (69797 inhabitants)
69 Km E of Prato (191150 inhabitants)
72 Km S of Ravenna (159116 inhabitants)
73 Km NE of Siena (53903 inhabitants)
78 Km W of Pesaro (94582 inhabitants)
84 Km E of Pistoia (90315 inhabitants)
85 Km NW of Perugia (166134 inhabitants)
86 Km W of Fano (60888 inhabitants)
92 Km SE of Bologna (386663 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 		ML 1.6 2019-12-07
12:42:51		 43.7987 11.9527 19 2020-02-28
16:42:13		 Bollettino Sismico Italiano INGV 74593521
Reviewed
Rev100 		ML 1.5 2019-12-07
12:42:51		 43.8157 11.9783 16 2019-12-07
12:49:26		 Sala Sismica INGV-Roma 74402421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-07 12:42:51 ± 0.14
Latitude 43.7987 ± 0.0063
Longitude 11.9527 ± 0.0100
Depth (km) 19 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74593521

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 808
Semi-minor axis of confidence ellipse (meter) 530
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 47
Circular confidence region, given by single value of horizontal uncertainty (meter) 810.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 26
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.51711
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 74593521
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-01-25 10:55:52

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 74402421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-07 12:49:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SALB.HHZ. 2019-12-07T12:44:10.98 3.0 positive manual Pn 3.85 0
IV.EUCT.HNZ. 2019-12-07T12:44:04.78 3.0 undecidable manual Sn 0.9 0
IV.VVLD.HHZ. 2019-12-07T12:43:55.54 3.0 undecidable manual Sn -3 0
IV.SENA.HHZ. 2019-12-07T12:43:53.14 3.0 undecidable manual Pn 1.66 0
IV.PTRJ.HNZ. 2019-12-07T12:43:41.57 3.0 undecidable manual Pn 2.11 0
MN.TRI.HHZ. 2019-12-07T12:43:31.98 3.0 negative manual Pg 4.84 0
IV.VIVA.HHZ. 2019-12-07T12:43:30.14 3.0 undecidable manual Pg 3.06 0
IV.MAGA.HHZ. 2019-12-07T12:43:25.57 3.0 undecidable manual Pn -1.49 0
IV.SENI.EHZ. 2019-12-07T12:43:20.75 3.0 undecidable manual S 0.04 0
IV.CSP1.EHZ. 2019-12-07T12:43:13.24 3.0 undecidable manual P 0.72 0
IV.PIEI.HHZ. 2019-12-07T12:43:08.92 0.3 undecidable manual S 122 55.1004 100 0.12 70
IV.ATPI.EHZ. 2019-12-07T12:43:08.62 0.3 undecidable manual S 137 52.8027 101 0.4 66
IV.ATMC.EHE. 2019-12-07T12:43:05.84 0.6 undecidable manual S 154 43.5231 104 0.05 48
IV.RUFI.EHZ. 2019-12-07T12:43:04.13 0.3 undecidable manual S 277 35.742 108 0.34 68
IV.BADI.EHZ. 2019-12-07T12:43:04.65 0.3 undecidable manual S 144 39.7269 106 -0.15 71
IV.CPGN.EHZ. 2019-12-07T12:43:03.66 0.6 undecidable manual S 89 29.4483 113 1.44 29
IV.LMD.HHZ. 2019-12-07T12:43:03.95 0.3 undecidable manual S 328 36.6411 108 -0.06 72
IV.SSP9.EHZ. 2019-12-07T12:43:02.15 0.3 undecidable manual S 150 28.749 114 0.1 73
IV.ATMI.HHZ. 2019-12-07T12:43:01.32 0.3 undecidable manual P 154 57.3981 100 -0.5 64
IV.ATPI.EHZ. 2019-12-07T12:43:01.06 0.3 undecidable manual P 137 52.8027 101 -0.07 70
IV.PARC.HHE. 2019-12-07T12:43:01.53 0.3 undecidable manual S 126 28.3494 114 -0.41 68
IV.PIEI.HHZ. 2019-12-07T12:43:00.98 0.1 undecidable manual P 122 55.1004 100 -0.49 85
IV.CRE.HHZ. 2019-12-07T12:43:00.20 0.1 undecidable manual S 180 19.9689 125 0.21 97
IV.BRIS.HHN. 2019-12-07T12:43:00.70 0.1 undecidable manual P 343 49.5171 102 0.07 94
IV.BADI.EHZ. 2019-12-07T12:42:59.04 0.1 undecidable manual P 144 39.7269 106 -0.12 95
IV.ATMC.EHE. 2019-12-07T12:42:59.79 0.1 undecidable manual P 154 43.5231 104 0.06 96
IV.SFI.EHZ. 2019-12-07T12:42:58.49 0.1 undecidable manual S 324 14.4744 136 -0.4 93
IV.LMD.HHZ. 2019-12-07T12:42:58.58 0.1 undecidable manual P 328 36.6411 108 -0.12 95
IV.ASQU.HHZ. 2019-12-07T12:42:58.62 0.3 undecidable manual S 269 13.0758 140 -0.01 76
IV.RUFI.EHZ. 2019-12-07T12:42:58.86 0.1 undecidable manual P 277 35.742 108 0.29 92
IV.CPGN.EHZ. 2019-12-07T12:42:58.52 0.3 undecidable manual P 89 29.4483 113 0.85 58
IV.SSP9.EHZ. 2019-12-07T12:42:57.75 0.3 undecidable manual P 150 28.749 114 0.18 72
IV.PARC.HHE. 2019-12-07T12:42:57.04 0.1 undecidable manual P 126 28.3494 114 -0.47 90
IV.CRE.HHZ. 2019-12-07T12:42:56.49 0.1 undecidable manual P 180 19.9689 125 0.11 99
IV.SFI.EHZ. 2019-12-07T12:42:55.51 0.1 negative manual P 324 14.4744 136 -0.23 97
IV.ASQU.HHZ. 2019-12-07T12:42:55.70 0.1 negative manual P 269 13.0758 140 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.HNE. ML:1.8 0.0004185 0.42 AML other m 2019-12-07T12:42:58.79
IV.SFI.EHN. ML:1.6 0.0002855 0.34 AML other m 2019-12-07T12:42:58.79
IV.SFI.EHE. ML:1.8 0.000407 0.42 AML other m 2019-12-07T12:42:58.58
IV.SFI.HNN. ML:1.6 0.00027100000000000003 0.36 AML other m 2019-12-07T12:42:58.79
IV.ASQU.HHE. ML:1.8 0.000461 0.22 AML other m 2019-12-07T12:42:58.98
IV.ASQU.HHN. ML:2.1 0.0009935 0.14 AML other m 2019-12-07T12:42:58.96
IV.CRE.HHE. ML:1.4 0.0001365 0.26 AML other m 2019-12-07T12:43:00.62
IV.CRE.HHN. ML:2.0 0.000646 0.26 AML other m 2019-12-07T12:43:00.51
IV.LMD.HHE. ML:1.5 0.00012004999999999999 0.3 AML other m 2019-12-07T12:43:04.56
IV.LMD.HHN. ML:1.6 0.000125 0.68 AML other m 2019-12-07T12:43:04.45
IV.BADI.EHE. ML:1.4 0.0000911 0.18 AML other m 2019-12-07T12:43:05.67
IV.BADI.EHN. ML:1.4 0.00008599999999999999 0.78 AML other m 2019-12-07T12:43:05.29
IV.ATPI.EHN. ML:1.2 0.0000374 0.86 AML other m 2019-12-07T12:43:08.35
IV.ATPI.EHE. ML:1.3 0.0000504 0.42 AML other m 2019-12-07T12:43:09.39
IV.PIEI.HHN. ML:1.0 0.000017685 0.3 AML other m 2019-12-07T12:43:10.39
IV.ATMI.HHE. ML:1.6 0.0000731 0.38 AML other m 2019-12-07T12:43:11.26
IV.PIEI.HHE. ML:1.0 0.0000203 0.38 AML other m 2019-12-07T12:43:12.91
IV.ATMI.HHN. ML:1.6 0.00009164999999999999 0.3 AML other m 2019-12-07T12:43:12.99
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