Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 12-12-2019 and time 06:29:44 (Italy) in region 8 km NE Pratovecchio Stia (AR)

A magnitude ML 1.0 earthquake occured in region: 8 km NE Pratovecchio Stia (AR), on

  • 12-12-2019 05:29:44 (UTC)
  • 12-12-2019 06:29:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.8310, 11.8050 at 11 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
Pratovecchio Stia AR 8 5845 5845
Poppi AR 12 6160 12005
Castel San Niccolò AR 13 2707 14712
Bagno di Romagna FC 14 6026 20738
Bibbiena AR 15 12241 32979
Santa Sofia FC 16 4136 37115
Premilcuore FC 17 799 37914
Verghereto FC 17 1907 39821
Ortignano Raggiolo AR 17 878 40699
Montemignaio AR 18 566 41265
Chiusi della Verna AR 18 2023 43288
San Godenzo FI 18 1167 44455
Londa FI 19 1840 46295
Chitignano AR 20 899 47194
Castel Focognano AR 20 3149 50343

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km N of Arezzo (99543 inhabitants)
45 Km E of Firenze (382808 inhabitants)
48 Km SW of Forlì (117913 inhabitants)
49 Km SW of Cesena (96758 inhabitants)
51 Km E of Scandicci (50609 inhabitants)
51 Km S of Faenza (58541 inhabitants)
57 Km E of Prato (191150 inhabitants)
59 Km S of Imola (69797 inhabitants)
66 Km W of Rimini (147750 inhabitants)
68 Km NE of Siena (53903 inhabitants)
72 Km E of Pistoia (90315 inhabitants)
73 Km SW of Ravenna (159116 inhabitants)
83 Km SE of Bologna (386663 inhabitants)
89 Km W of Pesaro (94582 inhabitants)
93 Km NW of Perugia (166134 inhabitants)
98 Km W of Fano (60888 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 		Md 1.2
ML 1.0 		2019-12-12
05:29:44		 43.8307 11.805 11 2020-02-28
16:42:13		 Bollettino Sismico Italiano INGV 74591811
Reviewed
Rev100 		ML 1.0 2019-12-12
05:29:44		 43.8307 11.805 11 2019-12-12
05:36:04		 Sala Sismica INGV-Roma 74570671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-12 05:29:44 ± 0.04
Latitude 43.8307 ± 0.0027
Longitude 11.8050 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74591811

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 347
Semi-minor axis of confidence ellipse (meter) 269
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 56
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 131
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.03597
Epicentral distance of station farthest from the epicenter (degree) 0.25631
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 74570671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-12 05:36:04

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 14
Type of magnitude ML
Reference to an origin 74591811
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-13 10:03:06

Md:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 6
Type of magnitude Md
Reference to an origin 74591811
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-13 10:03:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LMD.HHZ. 2019-12-12T05:29:54.42 0.3 undecidable manual S 344 28.4493 50 0.04 74
IV.CRE.HHZ. 2019-12-12T05:29:53.82 0.3 undecidable manual S 153 26.2515 50 0.03 74
IV.RUFI.EHZ. 2019-12-12T05:29:52.97 0.3 undecidable manual S 272 23.6541 50 -0.12 73
IV.RINC.HHZ. 2019-12-12T05:29:51.21 0.3 undecidable manual S 291 16.9719 122 0.03 75
IV.LMD.HHZ. 2019-12-12T05:29:50.03 0.3 undecidable manual P 344 28.4493 50 -0.06 73
IV.CRE.HHZ. 2019-12-12T05:29:49.74 0.3 undecidable manual P 153 26.2515 50 -0.01 75
IV.RUFI.EHZ. 2019-12-12T05:29:49.28 0.3 undecidable manual P 272 23.6541 50 -0.07 74
IV.RINC.HHZ. 2019-12-12T05:29:48.40 0.1 undecidable manual P 291 16.9719 122 0.16 98
IV.ASQU.HHZ. 2019-12-12T05:29:48.00 0.3 undecidable manual S 199 3.996 160 -0.16 75
IV.SFI.EHZ. 2019-12-12T05:29:48.84 0.3 undecidable manual S 22 8.88 140 -0.19 74
IV.SFI.EHZ. 2019-12-12T05:29:47.12 0.1 undecidable manual P 22 8.88 140 0.12 100
IV.ASQU.HHZ. 2019-12-12T05:29:46.62 0.3 undecidable manual P 199 3.996 160 0.12 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ASQU.HHN. ML:1.4 0.00046548124999999993 0.2016 AML other m 2019-12-12T05:29:48.12
IV.ASQU.HHE. ML:0.9 0.00013154779999999998 0.1408 AML other m 2019-12-12T05:29:48.44
IV.SFI.EHE. ML:0.9 0.000094180385 1.84 AML other m 2019-12-12T05:29:48.92
IV.SFI.HNN. ML:1.0 0.000117897335 0.0992 AML other m 2019-12-12T05:29:49.20
IV.SFI.EHN. ML:1.0 0.00011745394500000001 0.1184 AML other m 2019-12-12T05:29:49.15
IV.SFI.HNE. ML:0.8 0.000089426486 0.1696 AML other m 2019-12-12T05:29:49.51
IV.RINC.HHE. ML:0.8 0.00005181964 0.2208 AML other m 2019-12-12T05:29:51.54
IV.RINC.HHN. ML:0.8 0.000053940315000000004 0.2208 AML other m 2019-12-12T05:29:51.59
IV.RUFI.EHN. ML:0.8 0.000041298615 0.2784 AML other m 2019-12-12T05:29:53.20
IV.RUFI.EHE. ML:0.6 0.00002673354 0.2976 AML other m 2019-12-12T05:29:53.29
IV.CRE.HHN. ML:1.5 0.00018353144999999998 0.24 AML other m 2019-12-12T05:29:54.13
IV.CRE.HHE. ML:1.0 0.00005404319 0.1792 AML other m 2019-12-12T05:29:54.58
IV.LMD.HHN. ML:1.4 0.00011867795 0.0992 AML other m 2019-12-12T05:29:54.64
IV.LMD.HHE. ML:1.2 0.00008583666000000002 0.08 AML other m 2019-12-12T05:29:54.74
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