Earthquake with magnitude of ML 1.1 on date 30-10-2020 and time 05:49:56 (Italy) in region 3 km E Norcia (PG)

A magnitude ML 1.1 earthquake occured in region: 3 km E Norcia (PG), on

  • 30-10-2020 04:49:56 (UTC)
  • 30-10-2020 05:49:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8, 13.13 at 9 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 3 4957 4957
Castelsantangelo sul Nera MC 11 281 5238
Preci PG 11 724 5962
Cascia PG 13 3217 9179
Arquata del Tronto AP 14 1178 10357
Visso MC 15 1107 11464
Accumoli RI 16 667 12131
Ussita MC 16 444 12575
Cerreto di Spoleto PG 17 1075 13650
Montegallo AP 17 523 14173
Poggiodomo PG 19 117 14290
Sellano PG 19 1079 15369
Montemonaco AP 20 604 15973

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
69 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)
99 Km NW of Chieti (51815 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.1 2020-10-30
04:49:56
42.8 13.13 9 2020-10-30
06:45:35
Sala Sismica INGV-Roma 84254831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-30 04:49:56 ± 0.08
Latitude 42.80 ± 0.00
Longitude 13.13 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 84254831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 582
Semi-minor axis of confidence ellipse (meter) 282
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 292
Circular confidence region, given by single value of horizontal uncertainty (meter) 580
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.03238
Epicentral distance of station farthest from the epicenter (degree) 0.393
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 23
Type of magnitude ML
Reference to an origin 84254831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-30 06:45:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2020-10-30T04:50:10.98 0.3 undecidable manual S 117 0.393 50 -0.54 64
IV.MF5.EHZ. 2020-10-30T04:50:09.81 0.1 undecidable manual S 53 0.3049 50 0.9 75
IV.CSP1.EHZ. 2020-10-30T04:50:08.28 0.3 undecidable manual S 11 0.2941 50 -0.3 69
IV.CESI.HHZ. 2020-10-30T04:50:07.20 0.1 undecidable manual S 321 0.2599 107 -0.2 95
IV.FDMO.HHZ. 2020-10-30T04:50:06.25 0.3 undecidable manual S 353 0.2347 109 -0.25 71
IV.TERO.HHZ. 2020-10-30T04:50:05.01 0.1 undecidable manual P 117 0.393 50 -0.35 89
IV.GAVE.EHZ. 2020-10-30T04:50:05.60 0.3 undecidable manual S 237 0.2041 111 0.21 72
IV.LNSS.HHZ. 2020-10-30T04:50:05.73 0.3 undecidable manual S 198 0.2104 111 0.13 73
IV.MMO1.EHZ. 2020-10-30T04:50:04.17 0.1 undecidable manual S 57 0.1745 115 -0.16 97
IV.MF5.EHZ. 2020-10-30T04:50:04.03 0.1 undecidable manual P 53 0.3049 50 0.18 94
IV.CSP1.EHZ. 2020-10-30T04:50:03.51 0.1 undecidable manual P 11 0.2941 50 -0.15 95
IV.RM33.EHZ. 2020-10-30T04:50:03.69 0.1 undecidable manual P 168 0.3004 50 -0.09 96
IV.CESI.HHZ. 2020-10-30T04:50:03.22 0.6 undecidable manual P 321 0.2599 107 0.25 47
IV.MC2.EHZ. 2020-10-30T04:50:02.74 0.3 undecidable manual S 22 0.1169 124 0.35 71
IV.FDMO.HHZ. 2020-10-30T04:50:02.33 0.1 undecidable manual P 353 0.2347 109 -0.12 97
IV.GAVE.EHZ. 2020-10-30T04:50:01.95 0.1 undecidable manual P 237 0.2041 111 0.14 97
IV.LNSS.HHZ. 2020-10-30T04:50:01.92 0.1 undecidable manual P 198 0.2104 111 -0.02 99
IV.MMO1.EHZ. 2020-10-30T04:50:01.21 0.1 undecidable manual P 57 0.1745 115 0.01 100
IV.MC2.EHZ. 2020-10-30T04:50:00.36 0.1 undecidable manual P 22 0.1169 124 0.27 96
IV.NRCA.HNZ. 2020-10-30T04:49:59.12 0.1 undecidable manual P 342 0.0324 158 0.27 97
IV.NRCA.HNZ. 2020-10-30T04:49:59.84 0.1 undecidable manual S 342 0.0324 158 -0.41 94
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0 0.00088063785 0.16 AML other m 2020-10-30T04:50:00.36
IV.NRCA.HHN. ML:0 0.00062387275 0.0992 AML other m 2020-10-30T04:50:00.33
IV.NRCA.HNE. ML:0 0.00083444065 0.1504 AML other m 2020-10-30T04:50:00.36
IV.NRCA.HNN. ML:0 0.0005187173 0.0896 AML other m 2020-10-30T04:50:00.29
IV.LNSS.HHE. ML:0.9 5.240977E-5 0.0992 AML other m 2020-10-30T04:50:06.31
IV.LNSS.HHN. ML:1.2 9.776517E-5 0.2592 AML other m 2020-10-30T04:50:06.15
IV.LNSS.HNE. ML:1.3 0.00011828061 0.5696 AML other m 2020-10-30T04:50:14.63
IV.LNSS.HNN. ML:1.4 0.00017982485 2.8224 AML other m 2020-10-30T04:50:08.62
IV.GAVE.EHE. ML:1 6.0282645E-5 0.2208 AML other m 2020-10-30T04:50:06.64
IV.GAVE.EHN. ML:0.8 4.31529245E-5 0.2016 AML other m 2020-10-30T04:50:06.10
IV.GAVE.HNE. ML:1.2 0.000109381845 0.8 AML other m 2020-10-30T04:50:09.51
IV.GAVE.HNN. ML:1.6 0.0002577987 1.2224 AML other m 2020-10-30T04:50:03.49
IV.FDMO.HHE. ML:0.4 1.716501E-5 0.24 AML other m 2020-10-30T04:50:06.88
IV.FDMO.HHN. ML:0.4 1.42327845E-5 0.16 AML other m 2020-10-30T04:50:08.06
IV.CESI.HNE. ML:1.3 0.000105688715 0.4896 AML other m 2020-10-30T04:50:13.19
IV.CESI.HHN. ML:0.5 1.6465941E-5 0.1376 AML other m 2020-10-30T04:50:07.46
IV.CSP1.EHE. ML:1 4.611161E-5 0.8384 AML other m 2020-10-30T04:50:16.33
IV.CSP1.EHN. ML:1 4.0835548E-5 0.1408 AML other m 2020-10-30T04:50:09.57
IV.RM33.EHE. ML:0.5 1.478303E-5 0.4224 AML other m 2020-10-30T04:50:08.64
IV.RM33.EHN. ML:0.4 1.088323E-5 0.2176 AML other m 2020-10-30T04:50:09.20
IV.RM33.HNE. ML:1.6 0.0001733996 1.4496 AML other m 2020-10-30T04:50:06.21
IV.RM33.HNN. ML:1.5 0.0001364864 0.64 AML other m 2020-10-30T04:50:07.96
IV.MF5.EHE. ML:1.1 5.467619E-5 1.7984 AML other m 2020-10-30T04:50:04.10
IV.MF5.EHN. ML:1.1 5.32508E-5 0.96 AML other m 2020-10-30T04:50:16.37
IV.TERO.HHE. ML:0.5 1.1080192E-5 0.5376 AML other m 2020-10-30T04:50:18.68
IV.TERO.HNE. ML:1.6 0.0001156478 0.8096 AML other m 2020-10-30T04:50:07.08
IV.TERO.HNN. ML:1.7 0.00016909935 0.6592 AML other m 2020-10-30T04:50:11.48
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download