Earthquake with magnitude of ML 1.2 on date 03-11-2021 and time 11:18:58 (Italy) in region 5 km N Norcia (PG)

A magnitude ML 1.2 earthquake occured in region: 5 km N Norcia (PG), on

  • 03-11-2021 10:18:58 (UTC)
  • 03-11-2021 11:18:58 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.841, 13.096 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.

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 12 444 7513
Sellano PG 15 1079 8592
Cerreto di Spoleto PG 15 1075 9667
Cascia PG 15 3217 12884
Arquata del Tronto AP 18 1178 14062
Monte Cavallo MC 19 145 14207
Montegallo AP 19 523 14730
Poggiodomo PG 19 117 14847

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
54 Km W of Teramo (54892 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
65 Km E of Perugia (166134 inhabitants)
93 Km SW of Ancona (100861 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
101 Km N of Tivoli (56533 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.2 2021-11-03
10:18:58
42.8412 13.0958 11 2021-11-03
10:31:04
Sala Sismica INGV-Roma 97190121
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-11-03 10:18:58 ± 0.05
Latitude 42.8412 ± 0.0027
Longitude 13.0958 ± 0.0098
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 97190121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 773
Semi-minor axis of confidence ellipse (meter) 225
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 94
Circular confidence region, given by single value of horizontal uncertainty (meter) 770
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 12
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
Epicentral distance of station farthest from the epicenter (degree) 0.2626
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 97190121
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-11-03 10:31:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2021-11-03T10:19:15.08 3.0 undecidable manual S 0
IV.ASSB.HHZ. 2021-11-03T10:19:11.90 3.0 undecidable manual P 0
IV.LPEL.HHZ. 2021-11-03T10:19:11.12 3.0 undecidable manual Pn -3.58 0
IV.CSP1.EHZ. 2021-11-03T10:19:08.27 0.3 undecidable manual S 18 0.2626 90 0 74
IV.CESI.HHZ. 2021-11-03T10:19:07.05 0.3 undecidable manual S 320 0.2158 90 0.19 73
IV.PP3.EHZ. 2021-11-03T10:19:07.05 3.0 negative manual P -0.45 0
IV.LNSS.HHZ. 2021-11-03T10:19:07.68 0.3 undecidable manual S 190 0.2419 90 0.05 74
IV.FDMO.HHZ. 2021-11-03T10:19:06.30 0.6 undecidable manual S 358 0.1952 90 0.04 50
IV.LNSS.HHZ. 2021-11-03T10:19:03.56 0.1 undecidable manual P 190 0.2419 90 -0.01 100
IV.CESI.HHZ. 2021-11-03T10:19:03.04 0.3 undecidable manual P 320 0.2158 90 -0.08 74
IV.MC2.EHZ. 2021-11-03T10:19:03.60 0.3 undecidable manual S 44 0.098 115 0.19 75
IV.CSP1.EHZ. 2021-11-03T10:19:03.82 0.1 undecidable manual P 18 0.2626 90 -0.12 97
IV.FDMO.HHZ. 2021-11-03T10:19:02.62 0.1 undecidable manual P 358 0.1952 90 -0.16 97
IV.MF5.EHZ. 2021-11-03T10:19:02.99 3.0 undecidable manual P 0
IV.NRCA.HHZ. 2021-11-03T10:19:01.73 0.3 undecidable manual S 119 0.0153 169 -0.19 75
IV.MC2.EHZ. 2021-11-03T10:19:01.41 0.6 undecidable manual P 44 0.098 115 0.28 49
IV.NRCA.HHZ. 2021-11-03T10:19:00.32 0.3 undecidable manual P 119 0.0153 169 0.05 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:1.6 0.0006135 0.12 AML other m 2021-11-03T10:19:01.95
IV.NRCA.HNN. ML:1.7 0.0008375 0.12 AML other m 2021-11-03T10:19:01.84
IV.NRCA.HHN. ML:1.7 0.000809 0.1 AML other m 2021-11-03T10:19:01.85
IV.NRCA.HHE. ML:1.6 0.00068 0.1 AML other m 2021-11-03T10:19:01.90
IV.CESI.HHE. ML:1 5.875E-5 0.08 AML other m 2021-11-03T10:19:11.46
IV.CESI.HHN. ML:0.8 4.030851E-5 0.064 AML other m 2021-11-03T10:19:11.73
IV.FDMO.HHE. ML:0.6 2.410175E-5 0.1984 AML other m 2021-11-03T10:19:06.48
IV.FDMO.HHN. ML:0.7 3.2788725E-5 0.096 AML other m 2021-11-03T10:19:06.42
IV.MF5.EHE. ML:1.2 6.7783875E-5 45.7792 AML other m 2021-11-03T10:19:02.62
IV.MF5.EHN. ML:1.2 6.0936445E-5 1.0816 AML other m 2021-11-03T10:19:15.89
IV.LNSS.HNE. ML:1.4 0.000132812575 0.6272 AML other m 2021-11-03T10:19:14.02
IV.LNSS.HNN. ML:1.2 8.872256E-5 0.6528 AML other m 2021-11-03T10:19:15.88
IV.LNSS.HHE. ML:1.1 6.6220345E-5 0.16 AML other m 2021-11-03T10:19:07.98
IV.LNSS.HHN. ML:1 5.493987E-5 0.16 AML other m 2021-11-03T10:19:08.26
IV.CSP1.EHE. ML:1.1 6.443408E-5 0.2176 AML other m 2021-11-03T10:19:09.44
IV.CSP1.EHN. ML:1.2 6.935237E-5 0.16 AML other m 2021-11-03T10:19:09.46
IV.CESI.HNE. ML:1.4 0.000139488175 0.5184 AML other m 2021-11-03T10:19:23.60
IV.CESI.HNN. ML:2.1 0.0007349946 0.48 AML other m 2021-11-03T10:19:08.20
IV.PP3.EHE. ML:2.1 0.00021423405 0.0832 AML other m 2021-11-03T10:19:15.54
IV.PP3.EHN. ML:2.1 0.00021751657 0.0832 AML other m 2021-11-03T10:19:15.56
IV.PP3.HNE. ML:2.3 0.00028641195 0.0704 AML other m 2021-11-03T10:19:15.58
IV.PP3.HNN. ML:2.1 0.0002182503 0.0832 AML other m 2021-11-03T10:19:15.56
IV.ASSB.HHE. ML:0.9 2.5403165E-5 0.0832 AML other m 2021-11-03T10:19:15.35
IV.ASSB.HHN. ML:1 3.2051495E-5 0.064 AML other m 2021-11-03T10:19:15.32
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