Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 14-01-2020 and time 21:33:50 (Italy) in region 3 km NE Norcia (PG)

A magnitude ML 0.8 earthquake occured in region: 3 km NE Norcia (PG), on

  • 14-01-2020 20:33:50 (UTC)
  • 14-01-2020 21:33:50 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8100, 13.1260 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 3 4957 4957
Castelsantangelo sul Nera MC 10 281 5238
Preci PG 10 724 5962
Cascia PG 14 3217 9179
Visso MC 14 1107 10286
Arquata del Tronto AP 15 1178 11464
Ussita MC 15 444 11908
Accumoli RI 16 667 12575
Cerreto di Spoleto PG 17 1075 13650
Montegallo AP 17 523 14173
Sellano PG 18 1079 15252
Poggiodomo PG 19 117 15369
Montemonaco AP 19 604 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
97 Km W of Pescara (121014 inhabitants)
98 Km N of Tivoli (56533 inhabitants)
99 Km NW of Chieti (51815 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 0.8 2020-01-14
20:33:50		 42.8102 13.1255 11 2020-01-14
20:43:02		 Sala Sismica INGV-Roma 75545251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-14 20:33:50 ± 0.05
Latitude 42.8102 ± 0.0027
Longitude 13.1255 ± 0.0049
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75545251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 400
Semi-minor axis of confidence ellipse (meter) 250
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 244
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 17
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) 0.28778
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 9
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 75545251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-14 20:43:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ACATE.EHZ. 2020-01-14T20:35:21.02 3.0 positive manual Pg 10.06 0
IV.CADC.HNZ. 2020-01-14T20:35:11.17 3.0 undecidable manual Sn -1.45 0
IV.CAVE.HHZ. 2020-01-14T20:34:53.90 3.0 undecidable manual Sn 1.52 0
MN.BLY.HHZ. 2020-01-14T20:34:44.60 3.0 undecidable manual Pn 1.85 0
IV.NARO.HHZ. 2020-01-14T20:34:01.12 3.0 undecidable manual P 0.04 0
IV.CSP1.EHZ. 2020-01-14T20:34:01.52 0.3 undecidable manual S 12 31.9458 90 0.04 96
IV.CESI.HNN. 2020-01-14T20:34:00.48 0.3 undecidable manual S 320 28.0497 90 0.01 97
IV.SMA1.EHZ. 2020-01-14T20:33:59.87 0.3 undecidable manual S 139 26.2515 90 -0.12 97
IV.FDMO.HHZ. 2020-01-14T20:33:59.73 0.3 undecidable manual S 353 25.2525 90 0 98
IV.LNSS.HNE. 2020-01-14T20:33:59.47 0.6 undecidable manual S 197 24.0537 90 0.08 64
IV.MMO1.EHZ. 2020-01-14T20:33:57.83 0.3 undecidable manual S 59 19.1697 90 -0.25 95
IV.MC2.EHZ. 2020-01-14T20:33:56.49 0.3 undecidable manual S 25 12.3765 105 0.22 96
IV.CESI.HNN. 2020-01-14T20:33:56.24 0.3 undecidable manual P 320 28.0497 90 -0.02 97
IV.CSP1.EHZ. 2020-01-14T20:33:56.87 0.3 undecidable manual P 12 31.9458 90 0.02 97
IV.FDMO.HHZ. 2020-01-14T20:33:55.71 0.3 undecidable manual P 353 25.2525 90 -0.12 96
IV.LNSS.HNE. 2020-01-14T20:33:55.56 0.3 undecidable manual P 197 24.0537 90 -0.08 97
IV.SMA1.EHZ. 2020-01-14T20:33:55.80 0.3 undecidable manual P 139 26.2515 90 -0.19 95
IV.MTRA.HNE. 2020-01-14T20:33:55.85 0.6 undecidable manual P 105 22.8549 90 0.4 60
IV.NRCA.HHZ. 2020-01-14T20:33:54.36 0.3 undecidable manual S 341 2.6973 162 -0.12 100
IV.MMO1.EHZ. 2020-01-14T20:33:54.72 0.3 undecidable manual P 59 19.1697 90 -0.16 97
IV.MC2.EHZ. 2020-01-14T20:33:54.00 0.3 undecidable manual P 25 12.3765 105 0.16 97
IV.NRCA.HHZ. 2020-01-14T20:33:52.91 0.3 undecidable manual P 341 2.6973 162 0.1 100
IV.GAVE.EHZ. 2020-01-14T20:33:37.25 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:0.8 0.0001143529 0.064 AML other m 2020-01-14T20:33:54.76
IV.NRCA.HHN. ML:1.0 0.00014836135 0.1536 AML other m 2020-01-14T20:33:54.51
IV.NRCA.HNE. ML:0.8 0.00009796938499999999 0.064 AML other m 2020-01-14T20:33:54.76
IV.NRCA.HNN. ML:1.1 0.00021919 0.7808 AML other m 2020-01-14T20:34:01.50
IV.FDMO.HHE. ML:0.4 0.00001337184 0.2688 AML other m 2020-01-14T20:33:59.90
IV.FDMO.HHN. ML:0.2 0.000010528689000000001 0.1792 AML other m 2020-01-14T20:34:00.37
IV.SMA1.EHE. ML:0.3 0.000010871305 0.448 AML other m 2020-01-14T20:34:03.38
IV.SMA1.EHN. ML:0.0 0.0000011439485 46.2976 AML other m 2020-01-14T20:33:32.19
IV.CSP1.EHE. ML:0.8 0.000025839505 1.1648 AML other m 2020-01-14T20:34:17.02
IV.CSP1.EHN. ML:1.1 0.000057180269999999997 2.3296 AML other m 2020-01-14T20:34:07.60
IV.NARO.HHE. ML:1.0 0.00001186770716 1.0368 AML other m 2020-01-14T20:34:18.57
IV.NARO.HHN. ML:0.7 0.000006590550000000001 0.7296 AML other m 2020-01-14T20:34:08.96
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