Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 05-12-2019 and time 08:42:14 (UTC) in region 5 km E Norcia (PG)

A magnitude ML 1.0 earthquake occured in region: 5 km E Norcia (PG), on

  • 05-12-2019 08:42:14 (UTC)
  • 05-12-2019 09:42:14 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8090, 13.1450 at 10 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
Norcia PG 5 4957 4957
Castelsantangelo sul Nera MC 10 281 5238
Preci PG 12 724 5962
Arquata del Tronto AP 13 1178 7140
Visso MC 14 1107 8247
Cascia PG 15 3217 11464
Ussita MC 15 444 11908
Accumoli RI 15 667 12575
Montegallo AP 16 523 13098
Montemonaco AP 18 604 13702
Cerreto di Spoleto PG 19 1075 14777
Sellano PG 20 1079 15856

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
49 Km W of Teramo (54892 inhabitants)
49 Km NE of Terni (111501 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
96 Km W of Pescara (121014 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km NW of Chieti (51815 inhabitants)
98 Km N of Tivoli (56533 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 1.0 2019-12-05
08:42:14		 42.8093 13.145 10 2019-12-05
08:50:38		 Sala Sismica INGV-Roma 74335531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-05 08:42:14 ± 0.05
Latitude 42.8093 ± 0.0036
Longitude 13.1450 ± 0.0098
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 74335531

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 879
Semi-minor axis of confidence ellipse (meter) 238
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 291
Circular confidence region, given by single value of horizontal uncertainty (meter) 880.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 144
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.28598
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 74335531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-05 08:50:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMUR.HNZ. 2019-12-05T08:42:34.97 3.0 undecidable manual S 0.5 0
IV.CSP1.EHZ. 2019-12-05T08:42:25.24 0.3 undecidable manual S 9 31.746 50 -0.07 73
IV.FOSV.EHZ. 2019-12-05T08:42:23.75 3.0 undecidable manual P -0.1 0
IV.LNSS.HNE. 2019-12-05T08:42:23.33 0.3 undecidable manual S 200 24.4533 50 -0.04 75
IV.CSP1.EHZ. 2019-12-05T08:42:20.58 1.0 negative manual P 9 31.746 50 -0.05 24
IV.GAVE.EHZ. 2019-12-05T08:42:19.62 0.6 undecidable manual P 238 24.2535 50 0.15 49
IV.LNSS.HNE. 2019-12-05T08:42:19.50 0.1 undecidable manual P 200 24.4533 50 -0.01 100
IV.MC2.EHZ. 2019-12-05T08:42:19.79 0.3 undecidable manual S 18 11.877 131 0.07 76
IV.MMO1.EHZ. 2019-12-05T08:42:18.30 0.6 positive manual P 56 17.871 120 -0.07 50
IV.MC2.EHZ. 2019-12-05T08:42:17.65 1.0 undecidable manual P 18 11.877 131 0.25 24
IV.NRCA.HHZ. 2019-12-05T08:42:17.83 0.6 undecidable manual S 317 3.6963 161 -0.24 49
IV.NRCA.HHZ. 2019-12-05T08:42:16.56 0.6 undecidable manual P 317 3.6963 161 0.11 51
IV.T1299.EHZ. 2019-12-05T08:42:10.92 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.1 0.00019295755 0.1024 AML other m 2019-12-05T08:42:17.91
IV.NRCA.HHN. ML:1.0 0.00019005044999999998 0.1408 AML other m 2019-12-05T08:42:18.67
IV.NRCA.HNE. ML:1.1 0.00020261639999999997 0.1152 AML other m 2019-12-05T08:42:17.96
IV.NRCA.HNN. ML:1.0 0.0001829223 0.128 AML other m 2019-12-05T08:42:18.68
IV.GAVE.EHE. ML:0.4 0.000017366835 0.2944 AML other m 2019-12-05T08:42:23.48
IV.GAVE.EHN. ML:0.5 0.00002219025 0.4416 AML other m 2019-12-05T08:42:23.93
IV.GAVE.HNE. ML:1.3 0.00010875950000000001 0.8064 AML other m 2019-12-05T08:42:20.11
IV.GAVE.HNN. ML:1.5 0.00017343605 0.8512 AML other m 2019-12-05T08:42:22.51
IV.FOSV.EHE. ML:0.9 0.000014604525 0.3392 AML other m 2019-12-05T08:42:46.24
IV.FOSV.EHN. ML:0.9 0.00001382594 0.3776 AML other m 2019-12-05T08:42:31.40
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