Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 01-11-2020 and time 05:52:48 (Italy) in region 3 km NE Norcia (PG)

A magnitude ML 0.5 earthquake occured in region: 3 km NE Norcia (PG), on

  • 01-11-2020 04:52:48 (UTC)
  • 01-11-2020 05:52:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8070, 13.1190 at 10 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.

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 3 4957 4957
Castelsantangelo sul Nera MC 10 281 5238
Preci PG 10 724 5962
Cascia PG 13 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 18 523 14173
Sellano PG 18 1079 15252
Poggiodomo PG 18 117 15369
Montemonaco AP 20 604 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
51 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 NE of Guidonia Montecelio (88673 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
97 Km W of Pescara (121014 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
100 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
Bulletin
Rev1000 		ML 0.5 2020-11-01
04:52:48		 42.8072 13.1193 10 2021-02-26
14:56:03		 Bollettino Sismico Italiano INGV 84448891
Reviewed
Rev100 		ML 2.0 2020-11-01
04:52:48		 42.8108 13.1107 10 2020-11-01
05:03:16		 Sala Sismica INGV-Roma 84345971
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-01 04:52:48 ± 0.04
Latitude 42.8072 ± 0.0018
Longitude 13.1193 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 84448891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 282
Semi-minor axis of confidence ellipse (meter) 151
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 65
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 74
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 37
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.41099
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 84448891
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-11-04 14:03:29

ML:2.0

Field Value
Value 2.0
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 84345971
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-01 05:03:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PTRJ.HHZ. 2020-11-01T04:53:41.35 3.0 undecidable manual Sn -0.74 0
IV.CERA.HHZ. 2020-11-01T04:53:33.06 3.0 undecidable manual S 0.82 0
IV.CERA.HHZ. 2020-11-01T04:53:26.12 3.0 undecidable manual P 1.238 0
IV.RMP.HHZ. 2020-11-01T04:53:26.43 3.0 undecidable manual S -1.8 0
IV.SEI.HHZ. 2020-11-01T04:53:24.85 3.0 undecidable manual Pg 2.48 0
IV.MOMA.HNZ. 2020-11-01T04:53:03.19 0.3 undecidable manual S 270 44.7219 50 0.27 68
IV.ASSB.HHN. 2020-11-01T04:53:03.27 0.6 undecidable manual S 305 45.621 50 0.11 47
IV.TERO.HHZ. 2020-11-01T04:53:02.59 0.3 undecidable manual S 117 44.5221 50 -0.26 69
IV.GUMA.HNN. 2020-11-01T04:53:00.05 0.3 undecidable manual S 32 33.3444 50 0.17 71
IV.CAMP.HHE. 2020-11-01T04:53:00.70 0.6 undecidable manual S 142 38.2284 50 -0.5 44
IV.MML1.HNE. 2020-11-01T04:53:00.69 0.3 undecidable manual S 341 36.0417 50 0.09 72
IV.PF6.EHN. 2020-11-01T04:53:00.98 0.3 undecidable manual S 9 37.2294 50 0.07 72
IV.RM33.HNE. 2020-11-01T04:53:00.26 0.3 undecidable manual S 167 33.9438 50 0.21 71
IV.CSP1.EHZ. 2020-11-01T04:52:59.59 0.3 undecidable manual S 12 32.3454 50 -0.02 74
IV.MMUR.HNZ. 2020-11-01T04:52:59.05 3.0 undecidable manual P -4.64 0
IV.SMA1.EHZ. 2020-11-01T04:52:58.09 0.3 undecidable manual S 138 26.3514 50 0.08 74
IV.CESI.HNZ. 2020-11-01T04:52:58.26 0.3 undecidable manual S 322 28.0497 50 -0.2 72
IV.LNSS.HNZ. 2020-11-01T04:52:57.08 0.3 undecidable manual S 196 23.5542 114 -0.18 72
IV.T1299.HNZ. 2020-11-01T04:52:57.41 0.3 undecidable manual S 145 23.3544 114 0.23 72
IV.FDMO.HHZ. 2020-11-01T04:52:57.74 0.3 undecidable manual S 354 25.5522 50 -0.07 74
IV.ASSB.HHN. 2020-11-01T04:52:56.86 0.1 undecidable manual P 305 45.621 50 -0.04 96
IV.TERO.HHZ. 2020-11-01T04:52:56.53 0.3 undecidable manual P 117 44.5221 50 -0.19 70
IV.MOMA.HNZ. 2020-11-01T04:52:56.40 0.3 undecidable manual P 270 44.7219 50 -0.36 67
IV.FEMA.HNZ. 2020-11-01T04:52:55.33 0.3 undecidable manual S 342 18.0708 120 -0.23 72
IV.RM33.HNE. 2020-11-01T04:52:55.31 0.3 undecidable manual P 167 33.9438 50 0.21 71
IV.GUMA.HNN. 2020-11-01T04:52:55.20 0.6 undecidable manual P 32 33.3444 50 0.2 47
IV.MMO1.EHZ. 2020-11-01T04:52:55.96 0.3 undecidable manual S 59 19.7691 117 -0.09 74
IV.CAMP.HHE. 2020-11-01T04:52:55.58 0.3 undecidable manual P 142 38.2284 50 -0.18 71
IV.MML1.HNE. 2020-11-01T04:52:55.23 0.6 undecidable manual P 341 36.0417 50 -0.19 47
IV.MF5.EHZ. 2020-11-01T04:52:55.09 0.6 undecidable manual P 54 34.1436 50 -0.04 49
IV.PF6.EHN. 2020-11-01T04:52:55.70 0.3 undecidable manual P 9 37.2294 50 0.1 72
IV.MC2.EHZ. 2020-11-01T04:52:54.20 0.3 undecidable manual S 26 12.876 129 0.15 75
IV.CSP1.EHZ. 2020-11-01T04:52:54.62 0.6 undecidable manual P 12 32.3454 50 -0.23 47
IV.CESI.HNZ. 2020-11-01T04:52:54.29 0.1 undecidable manual P 322 28.0497 50 0.1 97
IV.T1299.HNZ. 2020-11-01T04:52:53.78 0.3 undecidable manual P 145 23.3544 114 0.33 71
IV.FDMO.HHZ. 2020-11-01T04:52:53.86 0.3 undecidable manual P 354 25.5522 50 0.05 74
IV.SMA1.EHZ. 2020-11-01T04:52:53.82 0.3 undecidable manual P 138 26.3514 50 -0.11 73
IV.LNSS.HNZ. 2020-11-01T04:52:53.54 0.1 undecidable manual P 196 23.5542 114 0.05 100
IV.MMO1.EHZ. 2020-11-01T04:52:52.86 0.1 undecidable manual P 59 19.7691 117 0.06 100
IV.FEMA.HNZ. 2020-11-01T04:52:52.47 0.3 undecidable manual P 342 18.0708 120 -0.04 75
IV.NRCA.HHZ. 2020-11-01T04:52:51.88 0.1 undecidable manual S 352 2.997 164 -0.16 100
IV.MC2.EHZ. 2020-11-01T04:52:51.73 0.3 undecidable manual P 26 12.876 129 0.09 75
IV.NRCA.HHZ. 2020-11-01T04:52:50.73 0.1 undecidable manual P 352 2.997 164 0.25 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:0.4 0.000016936329999999998 2.2592 AML other m 2020-11-01T04:52:57.54
IV.SMA1.EHN. ML:0.4 0.000013864205 0.6208 AML other m 2020-11-01T04:52:58.55
IV.FDMO.HHE. ML:0.2 0.00001128811 0.4992 AML other m 2020-11-01T04:52:58.18
IV.FDMO.HHN. ML:0.2 0.000012420765 2.9408 AML other m 2020-11-01T04:52:58.62
IV.CSP1.EHN. ML:1.0 0.00004123891 1.5392 AML other m 2020-11-01T04:52:59.38
IV.CSP1.EHE. ML:0.8 0.000023140955 1.0016 AML other m 2020-11-01T04:53:00.37
IV.TERO.HHN. ML:0.5 0.000007502084 3.36 AML other m 2020-11-01T04:53:03.14
IV.TERO.HHE. ML:0.7 0.000015083005 0.0608 AML other m 2020-11-01T04:53:03.23
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
Waveforms Seismic signals in miniseed + resp format Download