Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 11-12-2019 and time 05:16:23 (UTC) in region 6 km SW Apecchio (PU)

A magnitude ML 0.8 earthquake occured in region: 6 km SW Apecchio (PU), on

  • 11-12-2019 05:16:23 (UTC)
  • 11-12-2019 06:16:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5290, 12.3640 at 7 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
Apecchio PU 6 1882 1882
Pietralunga PG 11 2111 3993
Città di Castello PG 13 39913 43906
Mercatello sul Metauro PU 14 1378 45284
Piobbico PU 14 2029 47313
San Giustino PG 15 11297 58610
Borgo Pace PU 16 606 59216
Sant'Angelo in Vado PU 16 4133 63349
Sansepolcro AR 18 15884 79233
Montone PG 19 1680 80913
Monte Santa Maria Tiberina PG 19 1183 82096

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Arezzo (99543 inhabitants)
47 Km N of Perugia (166134 inhabitants)
61 Km SW of Pesaro (94582 inhabitants)
62 Km S of Rimini (147750 inhabitants)
63 Km SW of Fano (60888 inhabitants)
68 Km S of Cesena (96758 inhabitants)
69 Km NW of Foligno (57155 inhabitants)
82 Km SE of Forlì (117913 inhabitants)
86 Km E of Siena (53903 inhabitants)
93 Km SE of Faenza (58541 inhabitants)
93 Km E of Firenze (382808 inhabitants)
94 Km W of Ancona (100861 inhabitants)
98 Km E of Scandicci (50609 inhabitants)
100 Km S of Ravenna (159116 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 0.8 2019-12-11
05:16:23		 43.5288 12.3635 7 2020-02-28
16:42:15		 Bollettino Sismico Italiano INGV 74844731
Reviewed
Rev100 		ML 0.4 2019-12-11
05:16:23		 43.5312 12.3683 7 2019-12-11
06:17:50		 Sala Sismica INGV-Roma 74541951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-11 05:16:23 ± 0.11
Latitude 43.5288 ± 0.0027
Longitude 12.3635 ± 0.0037
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 74844731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 25
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 286
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 132
Number of associated phases, regardless of their use for origin computation 35
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.21584
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 74541951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-11 06:17:50

ML:0.8

Field Value
Value 0.8
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 74844731
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-12-21 07:43:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
AC.KBN.HHZ. 2019-12-11T05:18:04.99 3.0 negative manual Pg 10.25 0
IV.MCRV.HHZ. 2019-12-11T05:18:00.47 3.0 undecidable manual Sg 3.81 0
IV.ECTS.EHZ. 2019-12-11T05:17:59.86 3.0 undecidable manual Pg 11.11 0
IV.PAOL.HHZ. 2019-12-11T05:17:49.84 3.0 undecidable manual Sg 3.38 0
IV.MTGR.HHZ. 2019-12-11T05:17:48.16 3.0 undecidable manual Pn 2.81 0
IV.PTRJ.HNZ. 2019-12-11T05:17:42.77 3.0 undecidable manual Sg 4.03 0
GU.BLANC.HHZ. 2019-12-11T05:17:33.41 3.0 undecidable manual Pg 8.97 0
IV.MGR.HHZ. 2019-12-11T05:17:30.44 3.0 undecidable manual Pg 9.11 0
GU.RRL.HHZ. 2019-12-11T05:17:30.24 3.0 undecidable manual Pg 7.87 0
GU.GSCL.HHZ. 2019-12-11T05:17:10.49 3.0 undecidable manual Sg 2.42 0
IV.MTMR.HNZ. 2019-12-11T05:17:08.70 3.0 undecidable manual Pg -0.47 0
IV.MSSA.HHZ. 2019-12-11T05:16:56.33 3.0 undecidable manual Pg 1.64 0
IV.ZONE.HHZ. 2019-12-11T05:16:53.26 3.0 undecidable manual Pg -4.13 0
IV.POFI.HHZ. 2019-12-11T05:16:49.84 3.0 undecidable manual Pn -4.26 0
IV.INTR.HHZ. 2019-12-11T05:16:45.10 3.0 undecidable manual Pn -5.77 0
IV.TRIF.CHZ. 2019-12-11T05:16:44.72 3.0 positive manual Pg 0.23 0
IV.PE3.EHE. 2019-12-11T05:16:31.61 0.3 undecidable manual S 30 21.3675 109 0.49 67
IV.TB02.DHZ.01 2019-12-11T05:16:30.17 0.3 undecidable manual S 168 17.9709 112 0.17 73
IV.TB01.DHZ.01 2019-12-11T05:16:29.77 0.6 undecidable manual S 160 17.3715 113 -0.03 50
IV.TB03.DHZ.01 2019-12-11T05:16:29.02 0.3 undecidable manual S 165 14.6742 116 0.07 74
IV.ATLO.EHE. 2019-12-11T05:16:28.07 1.0 undecidable manual P 172 23.9538 107 -0.23 24
IV.PIEI.HHZ. 2019-12-11T05:16:28.72 0.6 undecidable manual S 87 13.7751 118 0.02 50
IV.ATPI.EHZ. 2019-12-11T05:16:27.45 0.6 undecidable manual S 160 9.1797 128 0.1 50
IV.PE3.EHE. 2019-12-11T05:16:27.66 0.3 undecidable manual P 30 21.3675 109 -0.15 72
IV.BADI.EHZ. 2019-12-11T05:16:27.57 0.3 undecidable manual S 258 9.7791 127 0.05 75
IV.ATPC.HHE. 2019-12-11T05:16:27.50 0.6 undecidable manual S 125 9.1797 128 0.14 49
IV.TB02.DHZ.01 2019-12-11T05:16:27.24 0.3 undecidable manual P 168 17.9709 112 0.08 74
IV.TB03.DHZ.01 2019-12-11T05:16:26.52 0.1 undecidable manual P 165 14.6742 116 -0.04 100
IV.TB01.DHZ.01 2019-12-11T05:16:26.89 0.1 undecidable manual P 160 17.3715 113 -0.16 97
IV.APEC.HHZ. 2019-12-11T05:16:26.23 0.3 undecidable manual S 54 5.5944 142 -0.24 73
IV.PIEI.HHZ. 2019-12-11T05:16:26.30 0.3 undecidable manual P 87 13.7751 118 -0.11 74
IV.ATPI.EHZ. 2019-12-11T05:16:25.63 0.3 undecidable manual P 160 9.1797 128 0 76
IV.BADI.EHZ. 2019-12-11T05:16:25.74 0.3 undecidable manual P 258 9.7791 127 0.01 76
IV.ATPC.HHE. 2019-12-11T05:16:25.64 0.3 undecidable manual P 125 9.1797 128 0.01 76
IV.APEC.HHZ. 2019-12-11T05:16:24.99 0.1 positive manual P 54 5.5944 142 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BADI.EHN. ML:0.8 0.00009285000000000001 0.44 AML other m 2019-12-11T05:16:28.09
IV.BADI.EHE. ML:0.9 0.00011145000000000001 0.5 AML other m 2019-12-11T05:16:31.55
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