Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 10-12-2019 and time 00:01:22 (UTC) in region 5 km NW Norcia (PG)

A magnitude ML 1.6 earthquake occured in region: 5 km NW Norcia (PG), on

  • 10-12-2019 00:01:22 (UTC)
  • 10-12-2019 01:01:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8260, 13.0600 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
Norcia PG 5 4957 4957
Preci PG 6 724 5681
Castelsantangelo sul Nera MC 11 281 5962
Cerreto di Spoleto PG 12 1075 7037
Visso MC 12 1107 8144
Cascia PG 12 3217 11361
Sellano PG 13 1079 12440
Ussita MC 15 444 12884
Poggiodomo PG 16 117 13001
Vallo di Nera PG 17 364 13365
Monte Cavallo MC 19 145 13510

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
56 Km W of Teramo (54892 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
63 Km SE of Perugia (166134 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
96 Km W of Montesilvano (53738 inhabitants)
96 Km N of Guidonia Montecelio (88673 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
Bulletin
Rev1000 		ML 1.6 2019-12-10
00:01:22		 42.826 13.0598 11 2020-02-28
16:42:19		 Bollettino Sismico Italiano INGV 75558981
Reviewed
Rev100 		ML 1.6 2019-12-10
00:01:22		 42.8247 13.0702 11 2019-12-10
00:06:34		 Sala Sismica INGV-Roma 74499301
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-10 00:01:22 ± 0.06
Latitude 42.8260 ± 0.0027
Longitude 13.0598 ± 0.0049
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 75558981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 330
Semi-minor axis of confidence ellipse (meter) 132
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 46
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.50362
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 24
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 75558981
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-01-15 09:19:22

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 74499301
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-10 00:06:34
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2019-12-10T00:01:40.92 0.3 undecidable manual S 3 55.8996 50 0.59 60
IV.TERO.HHZ. 2019-12-10T00:01:38.45 0.3 undecidable manual S 117 49.7169 50 -0.22 67
IV.ASSB.HHZ. 2019-12-10T00:01:36.33 0.3 undecidable manual S 307 40.5261 50 0.13 70
IV.MF5.EHZ. 2019-12-10T00:01:36.28 0.3 undecidable manual S 61 37.1295 50 0.98 53
IV.GUMA.HNN. 2019-12-10T00:01:35.08 0.3 undecidable manual S 40 34.4433 50 0.48 65
IV.RM33.EHZ. 2019-12-10T00:01:35.61 0.3 undecidable manual S 160 37.3293 50 0.24 68
IV.ARRO.EHZ. 2019-12-10T00:01:35.26 0.1 undecidable manual S 221 36.4413 50 0.15 93
IV.PF6.EHN. 2019-12-10T00:01:34.89 0.1 undecidable manual S 17 36.2415 50 -0.19 92
IV.MML1.HNE. 2019-12-10T00:01:34.25 0.3 undecidable manual S 347 32.6451 50 0.13 70
IV.CSP1.EHZ. 2019-12-10T00:01:33.75 0.3 undecidable manual S 22 31.746 50 -0.12 71
IV.SMA1.EHZ. 2019-12-10T00:01:33.73 0.1 undecidable manual S 134 31.2465 50 0 97
IV.MNTT.EHZ. 2019-12-10T00:01:32.98 0.1 undecidable manual P 59 50.8158 50 0.81 74
IV.LNSS.HHZ. 2019-12-10T00:01:32.14 0.1 undecidable manual S 184 24.753 50 0.12 95
IV.MTRA.EHZ. 2019-12-10T00:01:32.87 0.3 undecidable manual S 106 28.4493 50 -0.12 71
IV.EL6.EHZ. 2019-12-10T00:01:32.94 0.1 undecidable manual P 3 55.8996 50 -0.03 92
IV.CESX.HHZ. 2019-12-10T00:01:31.42 3.0 undecidable manual P -0.01 0
IV.CESI.HHZ. 2019-12-10T00:01:31.52 0.1 undecidable manual S 328 23.5542 50 -0.15 95
IV.MMO1.EHZ. 2019-12-10T00:01:31.14 0.1 undecidable manual S 69 23.1546 50 -0.44 89
IV.TERO.HHZ. 2019-12-10T00:01:31.75 0.1 undecidable manual P 117 49.7169 50 -0.26 89
IV.FDMO.HHZ. 2019-12-10T00:01:31.38 0.1 undecidable manual S 5 23.4543 50 -0.28 93
IV.ARRO.EHZ. 2019-12-10T00:01:30.00 0.1 undecidable manual P 221 36.4413 50 0.04 95
IT.MTCL.HGZ. 2019-12-10T00:01:30.33 0.1 undecidable manual S 345 19.2696 50 -0.21 95
IV.MF5.EHZ. 2019-12-10T00:01:30.28 0.1 undecidable manual P 61 37.1295 50 0.21 92
IT.GNU.HGE. 2019-12-10T00:01:30.93 3.0 undecidable manual P 0.32 0
IV.ASSB.HHZ. 2019-12-10T00:01:30.36 0.1 undecidable manual P 307 40.5261 50 -0.23 91
IV.MOMA.HHZ. 2019-12-10T00:01:30.63 0.1 negative manual P 267 39.9267 50 0.13 93
IV.CAMP.HHE. 2019-12-10T00:01:30.85 0.1 undecidable manual P 138 42.9237 50 -0.12 92
IV.MML1.HNE. 2019-12-10T00:01:29.43 0.3 undecidable manual P 347 32.6451 50 0.05 72
IV.SMA1.EHZ. 2019-12-10T00:01:29.09 0.1 undecidable manual P 134 31.2465 50 -0.07 95
IV.MC2.EHZ. 2019-12-10T00:01:29.14 0.1 undecidable manual S 48 14.1747 128 0.02 99
IV.PF6.EHN. 2019-12-10T00:01:29.75 0.1 undecidable manual P 17 36.2415 50 -0.19 92
IV.CSP1.EHZ. 2019-12-10T00:01:29.11 0.1 undecidable manual P 22 31.746 50 -0.13 94
IV.GUMA.HNN. 2019-12-10T00:01:29.76 0.1 positive manual P 40 34.4433 50 0.1 94
IV.RM33.EHZ. 2019-12-10T00:01:29.89 0.1 negative manual P 160 37.3293 50 -0.21 92
IV.MTRA.EHZ. 2019-12-10T00:01:28.56 0.1 undecidable manual P 106 28.4493 50 -0.17 94
IV.LNSS.HHZ. 2019-12-10T00:01:28.13 0.1 undecidable manual P 184 24.753 50 -0.04 97
IV.T1299.HNN. 2019-12-10T00:01:28.79 0.1 undecidable manual P 140 27.9498 50 0.14 95
IV.MMO1.EHZ. 2019-12-10T00:01:27.71 0.1 positive manual P 69 23.1546 50 -0.21 94
IV.FDMO.HHZ. 2019-12-10T00:01:27.85 0.1 undecidable manual P 5 23.4543 50 -0.11 96
IT.MTCL.HGZ. 2019-12-10T00:01:27.26 0.1 undecidable manual P 345 19.2696 50 -0.05 98
IV.CESI.HHZ. 2019-12-10T00:01:27.91 0.1 positive manual P 328 23.5542 50 -0.06 97
IV.NRCA.HNZ. 2019-12-10T00:01:26.87 0.1 undecidable manual S 79 4.4955 158 -0.16 98
IV.FEMA.HNE. 2019-12-10T00:01:26.87 0.1 undecidable manual P 357 15.0738 126 0.21 95
IV.MC2.EHZ. 2019-12-10T00:01:26.59 0.1 positive manual P 48 14.1747 128 0.09 98
IV.NRCA.HNZ. 2019-12-10T00:01:25.35 0.1 negative manual P 79 4.4955 158 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.2 0.002815 0.06 AML other m 2019-12-10T00:01:26.92
IV.NRCA.HHE. ML:2.0 0.0016899999999999999 1.82 AML other m 2019-12-10T00:01:26.04
IV.NRCA.HHN. ML:2.3 0.00292 0.06 AML other m 2019-12-10T00:01:26.92
IV.NRCA.HNE. ML:2.0 0.0014500000000000001 0.1 AML other m 2019-12-10T00:01:27.05
IV.CESI.HHE. ML:1.3 0.00011804999999999998 0.18 AML other m 2019-12-10T00:01:31.85
IV.CESI.HHN. ML:1.5 0.0001915 0.18 AML other m 2019-12-10T00:01:31.88
IV.FDMO.HHN. ML:1.0 0.00007230000000000001 1.38 AML other m 2019-12-10T00:01:32.89
IV.MOMA.HNN. ML:1.9 0.000253 0.72 AML other m 2019-12-10T00:01:32.64
IV.LNSS.HHE. ML:1.7 0.000312 0.12 AML other m 2019-12-10T00:01:32.46
IV.LNSS.HHN. ML:1.6 0.000244 0.18 AML other m 2019-12-10T00:01:32.51
IV.MTRA.EHN. ML:1.5 0.0001485 0.92 AML other m 2019-12-10T00:01:33.94
IV.SMA1.EHN. ML:1.3 0.00009645000000000001 0.7 AML other m 2019-12-10T00:01:34.92
IV.FDMO.HHE. ML:1.1 0.00007545 0.88 AML other m 2019-12-10T00:01:34.17
IV.MTRA.EHE. ML:1.5 0.0001585 0.22 AML other m 2019-12-10T00:01:34.73
IV.SMA1.EHE. ML:1.4 0.0001245 0.18 AML other m 2019-12-10T00:01:34.75
IV.MOMA.HNE. ML:1.7 0.0001834 0.4 AML other m 2019-12-10T00:01:36.27
IV.MOMA.HHN. ML:1.2 0.000052699999999999993 1.5 AML other m 2019-12-10T00:01:37.87
IV.MOMA.HHE. ML:1.4 0.000081 1.46 AML other m 2019-12-10T00:01:38.08
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