Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 15-11-2020 and time 23:54:17 (Italy) in region 7 km SE Norcia (PG)

A magnitude ML 0.9 earthquake occured in region: 7 km SE Norcia (PG), on

  • 15-11-2020 22:54:17 (UTC)
  • 15-11-2020 23:54:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7360, 13.1320 at 14 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 7 4957 4957
Cascia PG 10 3217 8174
Accumoli RI 11 667 8841
Cittareale RI 13 482 9323
Arquata del Tronto AP 14 1178 10501
Poggiodomo PG 16 117 10618
Monteleone di Spoleto PG 17 599 11217
Amatrice RI 17 2657 13874
Preci PG 18 724 14598
Castelsantangelo sul Nera MC 18 281 14879
Cerreto di Spoleto PG 20 1075 15954

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km SE of Foligno (57155 inhabitants)
44 Km E of Terni (111501 inhabitants)
48 Km W of Teramo (54892 inhabitants)
48 Km NW of L'Aquila (69753 inhabitants)
73 Km SE of Perugia (166134 inhabitants)
87 Km W of Montesilvano (53738 inhabitants)
88 Km NE of Guidonia Montecelio (88673 inhabitants)
90 Km NE of Tivoli (56533 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
94 Km W of Pescara (121014 inhabitants)
95 Km W 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 0.9 2020-11-15
22:54:17		 42.7355 13.1315 14 2020-11-15
23:03:09		 Sala Sismica INGV-Roma 84757981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-15 22:54:17 ± 0.09
Latitude 42.7355 ± 0.0036
Longitude 13.1315 ± 0.0049
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84757981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 396
Semi-minor axis of confidence ellipse (meter) 213
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 137
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) 99
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 14
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) 0.36512
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 84757981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-15 23:03:09
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.TRI.HHZ. 2020-11-15T22:55:26.46 3.0 undecidable manual Sg 0.59 0
IV.CSP1.EHZ. 2020-11-15T22:54:30.89 0.6 undecidable manual S 9 39.9267 96 0.17 47
IV.TERO.HHZ. 2020-11-15T22:54:30.82 0.6 undecidable manual S 108 40.5261 96 -0.05 48
IV.MMO1.EHE. 2020-11-15T22:54:26.56 0.3 undecidable manual S 41 24.1536 103 0.02 74
IV.GAVE.EHZ. 2020-11-15T22:54:25.43 0.6 undecidable manual S 256 19.9689 108 -0.03 49
IV.MC2.EHZ. 2020-11-15T22:54:25.82 0.3 undecidable manual S 13 20.0688 108 0.32 70
IV.TERO.HHZ. 2020-11-15T22:54:25.10 0.6 undecidable manual P 108 40.5261 96 -0.14 47
IV.LNSS.HHZ. 2020-11-15T22:54:24.81 0.6 undecidable manual S 207 16.4724 115 0.2 48
IV.CSP1.EHZ. 2020-11-15T22:54:24.96 0.3 undecidable manual P 9 39.9267 96 -0.2 70
IV.MNTT.EHZ. 2020-11-15T22:54:23.52 3.0 positive manual P -2.37 0
IV.NRCA.HHZ. 2020-11-15T22:54:23.18 0.3 undecidable manual S 353 10.9779 131 -0.19 73
IV.MC2.EHZ. 2020-11-15T22:54:22.15 0.3 undecidable manual P 13 20.0688 108 0 75
IV.GAVE.EHZ. 2020-11-15T22:54:22.07 0.3 undecidable manual P 256 19.9689 108 -0.05 74
IV.MMO1.EHE. 2020-11-15T22:54:22.69 0.3 undecidable manual P 41 24.1536 103 -0.06 74
IV.CPGN.EHZ. 2020-11-15T22:54:21.71 3.0 undecidable manual P -0.9 0
IV.LNSS.HHZ. 2020-11-15T22:54:21.73 0.1 undecidable manual P 207 16.4724 115 0.1 99
IV.NRCA.HHZ. 2020-11-15T22:54:20.83 0.1 undecidable manual P 353 10.9779 131 -0.09 100
IV.ATFO.HHZ. 2020-11-15T22:54:17.59 3.0 undecidable manual P -1.65 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.0 0.0001036 0.08 AML other m 2020-11-15T22:54:23.39
IV.NRCA.HHN. ML:0.8 0.00006355 0.78 AML other m 2020-11-15T22:54:24.67
IV.LNSS.HHN. ML:0.8 0.0000556 0.16 AML other m 2020-11-15T22:54:25.05
IV.LNSS.HHE. ML:0.8 0.000048799999999999994 0.7 AML other m 2020-11-15T22:54:25.09
IV.NRCA.HNE. ML:1.2 0.00016806875 1.4976 AML other m 2020-11-15T22:54:24.15
IV.TERO.HHE. ML:0.5 0.000011051004499999999 1.9456 AML other m 2020-11-15T22:54:30.98
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