Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 01-01-2020 and time 09:44:10 (Italy) in region 5 km N Norcia (PG)

A magnitude ML 1.3 earthquake occured in region: 5 km N Norcia (PG), on

  • 01-01-2020 08:44:10 (UTC)
  • 01-01-2020 09:44:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8380, 13.0870 at 11 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
Preci PG 6 724 5681
Castelsantangelo sul Nera MC 8 281 5962
Visso MC 10 1107 7069
Ussita MC 13 444 7513
Cerreto di Spoleto PG 14 1075 8588
Sellano PG 14 1079 9667
Cascia PG 15 3217 12884
Arquata del Tronto AP 19 1178 14062
Monte Cavallo MC 19 145 14207
Poggiodomo PG 19 117 14324
Vallo di Nera PG 20 364 14688

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
54 Km W of Teramo (54892 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
64 Km E of Perugia (166134 inhabitants)
93 Km NE of Viterbo (67173 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
100 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 1.3 2020-01-01
08:44:10		 42.8382 13.0873 11 2020-01-01
08:48:33		 Sala Sismica INGV-Roma 75161711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-01 08:44:10 ± 0.13
Latitude 42.8382 ± 0.0081
Longitude 13.0873 ± 0.0074
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75161711

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 930
Semi-minor axis of confidence ellipse (meter) 580
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 2
Circular confidence region, given by single value of horizontal uncertainty (meter) 930.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 218
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.21404
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.4
Num. used stations 12
Type of magnitude ML
Reference to an origin 75161711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-01 08:48:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHZ. 2020-01-01T08:44:19.66 0.1 undecidable manual S 321 23.754 90 -0.06 98
IV.MMO1.EHZ. 2020-01-01T08:44:18.62 0.1 undecidable manual S 71 20.6682 90 -0.27 94
IV.MF5.EHZ. 2020-01-01T08:44:18.22 3.0 negative manual P 0.21 0
IV.FDMO.HHZ. 2020-01-01T08:44:18.92 0.3 undecidable manual S 360 21.9669 90 -0.34 70
IV.MC2.EHZ. 2020-01-01T08:44:16.72 0.1 undecidable manual S 45 11.5773 110 0.23 96
IV.CESI.HHZ. 2020-01-01T08:44:16.12 0.1 positive manual P 321 23.754 90 0.12 97
IV.FDMO.HHZ. 2020-01-01T08:44:15.77 0.6 negative manual P 360 21.9669 90 0.03 49
IV.MMO1.EHZ. 2020-01-01T08:44:15.65 0.6 undecidable manual P 71 20.6682 90 0.12 49
IV.NRCA.HHZ. 2020-01-01T08:44:14.77 0.1 undecidable manual S 103 2.2977 165 -0.09 100
IV.MC2.EHZ. 2020-01-01T08:44:14.41 0.6 negative manual P 45 11.5773 110 0.27 48
IV.NRCA.HHZ. 2020-01-01T08:44:13.37 0.6 undecidable manual P 103 2.2977 165 0.17 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.6 0.0006651791 0.16 AML other m 2020-01-01T08:44:14.86
IV.NRCA.HHN. ML:1.6 0.0007243461499999999 0.0768 AML other m 2020-01-01T08:44:14.84
IV.NRCA.HNE. ML:1.6 0.0006776910999999999 0.16 AML other m 2020-01-01T08:44:14.86
IV.NRCA.HNN. ML:1.6 0.0006521364499999999 0.0832 AML other m 2020-01-01T08:44:14.84
IV.FDMO.HHE. ML:0.2 0.0000120746585 0.1216 AML other m 2020-01-01T08:44:20.49
IV.FDMO.HHN. ML:0.4 0.000017363305000000004 0.1792 AML other m 2020-01-01T08:44:20.83
IV.CESI.HNE. ML:1.2 0.00010423824999999999 0.4288 AML other m 2020-01-01T08:44:24.21
IV.CESI.HNN. ML:1.4 0.0001691409425 0.9408 AML other m 2020-01-01T08:44:25.34
IV.CESI.HHE. ML:0.8 0.00003526646 0.1024 AML other m 2020-01-01T08:44:19.75
IV.CESI.HHN. ML:0.9 0.000043800425 0.1024 AML other m 2020-01-01T08:44:19.76
IV.MF5.EHE. ML:1.3 0.00008390318499999999 2.4384 AML other m 2020-01-01T08:44:20.92
IV.MF5.EHN. ML:1.1 0.000053349225 1.12 AML other m 2020-01-01T08:44:30.44
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