Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 19-12-2019 and time 21:13:11 (Italy) in region 11 km W Monte Cavallo (MC)

A magnitude ML 1.2 earthquake occured in region: 11 km W Monte Cavallo (MC), on

  • 19-12-2019 20:13:11 (UTC)
  • 19-12-2019 21:13:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9920, 12.8670 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.

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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
Monte Cavallo MC 11 145 145
Serravalle di Chienti MC 11 1070 1215
Valtopina PG 12 1398 2613
Sellano PG 12 1079 3692
Foligno PG 14 57155 60847
Nocera Umbra PG 15 5839 66686
Trevi PG 16 8469 75155
Spello PG 16 8645 83800
Pieve Torina MC 16 1458 85258
Muccia MC 18 915 86173
Sefro MC 19 422 86595
Preci PG 19 724 87319
Fiordimonte MC 19 202 87521
Visso MC 19 1107 88628
Pievebovigliana MC 19 866 89494
Cerreto di Spoleto PG 20 1075 90569

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Foligno (57155 inhabitants)
41 Km E of Perugia (166134 inhabitants)
51 Km NE of Terni (111501 inhabitants)
78 Km W of Teramo (54892 inhabitants)
83 Km NW of L'Aquila (69753 inhabitants)
87 Km SW of Ancona (100861 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
96 Km S of Fano (60888 inhabitants)
96 Km SE of Arezzo (99543 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
Reviewed
Rev100 		ML 1.2 2019-12-19
20:13:11		 42.9918 12.8673 8 2019-12-19
20:23:48		 Sala Sismica INGV-Roma 74803771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-19 20:13:11 ± 0.08
Latitude 42.9918 ± 0.0045
Longitude 12.8673 ± 0.0049
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 74803771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 480
Semi-minor axis of confidence ellipse (meter) 213
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 214
Circular confidence region, given by single value of horizontal uncertainty (meter) 480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 112
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.03058
Epicentral distance of station farthest from the epicenter (degree) 0.37772
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 74803771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-19 20:23:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2019-12-19T20:13:25.49 0.3 undecidable manual S 27 41.9247 50 -0.25 68
IV.MMO1.EHZ. 2019-12-19T20:13:24.81 0.3 undecidable manual S 105 38.7279 50 -0.06 71
IV.CSP1.EHZ. 2019-12-19T20:13:22.10 0.3 undecidable manual S 68 29.5482 105 0.16 71
IV.SNTG.HHZ. 2019-12-19T20:13:22.52 0.6 undecidable manual S 11 29.748 105 0.49 44
IV.ATCC.EHZ. 2019-12-19T20:13:21.70 0.6 undecidable manual S 319 28.2495 105 0.18 47
IV.NRCA.HHZ. 2019-12-19T20:13:21.25 0.6 undecidable manual S 131 26.6511 106 0.26 47
IV.EL6.EHZ. 2019-12-19T20:13:19.45 1.0 positive manual P 27 41.9247 50 -0.21 23
IV.ASSB.HHZ. 2019-12-19T20:13:18.16 0.6 undecidable manual S 288 17.871 114 0.05 49
IV.FDMO.HHZ. 2019-12-19T20:13:18.60 0.6 undecidable manual S 74 18.5703 113 0.28 47
IV.MMO1.EHZ. 2019-12-19T20:13:18.98 0.6 positive manual P 105 38.7279 50 -0.18 46
IV.GAVE.EHZ. 2019-12-19T20:13:18.40 1.0 negative manual P 176 33.3444 103 0.19 23
IV.SNTG.HHZ. 2019-12-19T20:13:17.42 0.1 undecidable manual P 11 29.748 105 -0.1 96
IV.ATCC.EHZ. 2019-12-19T20:13:17.21 0.3 positive manual P 319 28.2495 105 -0.01 73
IV.CSP1.EHZ. 2019-12-19T20:13:17.50 1.0 undecidable manual P 68 29.5482 105 0.03 24
IV.NRCA.HHZ. 2019-12-19T20:13:16.97 0.1 undecidable manual P 131 26.6511 106 0.05 97
IV.ASSB.HHZ. 2019-12-19T20:13:15.36 0.3 positive manual P 288 17.871 114 0.11 73
IV.FDMO.HHZ. 2019-12-19T20:13:15.63 0.6 positive manual P 74 18.5703 113 0.26 47
IV.CESI.HHZ. 2019-12-19T20:13:13.69 0.3 undecidable manual S 64 3.3966 157 -0.6 66
IV.CESI.HHZ. 2019-12-19T20:13:12.94 0.1 positive manual P 64 3.3966 157 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHN. ML:1.2 0.0001337 0.2 AML other m 2019-12-19T20:13:18.86
IV.FDMO.HHE. ML:1.1 0.0001022 1.6 AML other m 2019-12-19T20:13:19.11
IV.ASSB.HHE. ML:1.2 0.0001235 0.32 AML other m 2019-12-19T20:13:19.27
IV.ASSB.HHN. ML:1.0 0.00009215 0.42 AML other m 2019-12-19T20:13:19.11
IV.CSP1.EHE. ML:1.3 0.000104 0.52 AML other m 2019-12-19T20:13:22.04
IV.CSP1.EHN. ML:1.1 0.0000658 0.64 AML other m 2019-12-19T20:13:24.39
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