Earthquake with magnitude of ML 1.6 on date 01-10-2020 and time 15:06:24 (Italy) in region 2 km NW Norcia (PG)

A magnitude ML 1.6 earthquake occured in region: 2 km NW Norcia (PG), on

  • 01-10-2020 13:06:24 (UTC)
  • 01-10-2020 15:06:24 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.81, 13.07 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 3 4957 4957
Preci PG 8 724 5681
Cascia PG 11 3217 8898
Castelsantangelo sul Nera MC 12 281 9179
Cerreto di Spoleto PG 13 1075 10254
Visso MC 14 1107 11361
Sellano PG 15 1079 12440
Poggiodomo PG 15 117 12557
Ussita MC 16 444 13001
Vallo di Nera PG 18 364 13365
Arquata del Tronto AP 19 1178 14543
Accumoli RI 19 667 15210
Monteleone di Spoleto PG 20 599 15809

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
44 Km NE of Terni (111501 inhabitants)
54 Km W of Teramo (54892 inhabitants)
57 Km NW of L'Aquila (69753 inhabitants)
65 Km SE of Perugia (166134 inhabitants)
90 Km E of Viterbo (67173 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
97 Km SW of Ancona (100861 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 1.6 2020-10-01
13:06:24
42.81 13.07 11 2020-10-01
13:17:32
Sala Sismica INGV-Roma 83417221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-10-01 13:06:24 ± 0.12
Latitude 42.81 ± 0.01
Longitude 13.07 ± 0.01
Depth (km) 11 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83417221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 768
Semi-minor axis of confidence ellipse (meter) 168
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 297
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) 142
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.31296
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 8
Type of magnitude ML
Reference to an origin 83417221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-10-01 13:17:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PZUN.HHZ. 2020-10-01T13:08:01.18 3.0 undecidable manual Sg 9.36 0
AC.VLO.HHZ. 2020-10-01T13:07:44.57 3.0 undecidable manual Pn -0.81 0
IV.CAGR.HHZ. 2020-10-01T13:07:40.52 3.0 undecidable manual Pn -2.83 0
IV.EUCT.HNZ. 2020-10-01T13:07:29.68 3.0 positive manual Pg 12.7 0
IV.AGLI.HHZ. 2020-10-01T13:07:16.62 3.0 negative manual Pn 3.4 0
IV.SARZ.HHZ. 2020-10-01T13:07:15.06 3.0 negative manual Pn -0.9 0
IV.SGTA.HHZ. 2020-10-01T13:07:06.88 3.0 undecidable manual Pn 2.36 0
MN.VLC.HHZ. 2020-10-01T13:06:59.73 3.0 negative manual Pn 1.2 0
IV.SERM.EHZ. 2020-10-01T13:06:59.29 3.0 negative manual Pn -2.15 0
IV.IMOL.HNZ. 2020-10-01T13:06:53.51 3.0 negative manual Pn 2 0
IV.APEC.HHZ. 2020-10-01T13:06:47.79 3.0 undecidable manual S -0.78 0
IV.LPEL.HHZ. 2020-10-01T13:06:47.23 3.0 positive manual P 0.12 0
IV.LAV9.HHZ. 2020-10-01T13:06:46.57 3.0 undecidable manual P 0.94 0
IV.INTR.HHZ. 2020-10-01T13:06:45.08 3.0 negative manual P -0.31 0
IV.TERO.HHZ. 2020-10-01T13:06:45.01 3.0 undecidable manual S -1.43 0
IV.CAMP.HHZ. 2020-10-01T13:06:43.86 3.0 undecidable manual S -0.07 0
IV.CPGN.EHZ. 2020-10-01T13:06:42.68 3.0 undecidable manual P 1.03 0
IV.VCEL.EHZ. 2020-10-01T13:06:41.67 3.0 positive manual P 0.97 0
IV.T0110.HHZ. 2020-10-01T13:06:40.85 3.0 negative manual P -1.06 0
IV.CSP1.EHE. 2020-10-01T13:06:36.53 0.3 undecidable manual S 19 0.2986 91 0.29 69
IV.APEC.HHZ. 2020-10-01T13:06:35.11 3.0 undecidable manual P -1.88 0
IV.FDMO.HHZ. 2020-10-01T13:06:34.33 0.3 undecidable manual S 3 0.2275 92 0.2 71
IV.CESI.HHN. 2020-10-01T13:06:34.15 0.3 undecidable manual S 328 0.2311 92 -0.08 72
IV.LNSS.HHE. 2020-10-01T13:06:33.57 0.6 undecidable manual S 186 0.2068 92 0.05 48
IV.MMO1.EHE. 2020-10-01T13:06:33.32 0.3 undecidable manual S 64 0.2077 92 -0.21 70
IV.FIAM.HHZ. 2020-10-01T13:06:32.36 3.0 positive manual P -3.79 0
IV.MML1.HNZ. 2020-10-01T13:06:32.12 0.1 undecidable manual P 346 0.313 91 0.42 88
IV.MC2.EHZ. 2020-10-01T13:06:31.54 0.1 undecidable manual S 40 0.134 100 0.19 96
IV.CSP1.EHE. 2020-10-01T13:06:31.13 0.1 undecidable manual P 19 0.2986 91 -0.33 90
IV.FDMO.HHZ. 2020-10-01T13:06:30.35 0.3 undecidable manual P 3 0.2275 92 0.11 72
IV.LNSS.HHE. 2020-10-01T13:06:30.07 0.1 undecidable manual P 186 0.2068 92 0.18 93
IV.MMO1.EHE. 2020-10-01T13:06:29.75 0.1 undecidable manual P 64 0.2077 92 -0.14 96
IV.CESI.HHN. 2020-10-01T13:06:29.60 0.1 undecidable manual P 328 0.2311 92 -0.69 82
IV.NRCA.HHZ. 2020-10-01T13:06:28.83 0.6 undecidable manual S 52 0.0396 152 -0.31 48
IV.MC2.EHZ. 2020-10-01T13:06:28.76 0.1 undecidable manual P 40 0.134 100 0.13 97
IV.NRCA.HHZ. 2020-10-01T13:06:27.41 0.1 negative manual P 52 0.0396 152 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.4 0.0004107046 0.0832 AML other m 2020-10-01T13:06:28.88
IV.NRCA.HHN. ML:0.8 0.00010659434 0.0576 AML other m 2020-10-01T13:06:29.01
IV.NRCA.HNE. ML:1.4 0.00036828975 0.0768 AML other m 2020-10-01T13:06:28.92
IV.NRCA.HNN. ML:0.9 0.00011527938 0.3008 AML other m 2020-10-01T13:06:29.01
IV.FDMO.HHE. ML:0 5.38858125E-6 0.1408 AML other m 2020-10-01T13:06:34.52
IV.FDMO.HHN. ML:0.2 1.01942035E-5 0.224 AML other m 2020-10-01T13:06:34.94
IV.APEC.HNE. ML:2.1 0.00012157385 0.2176 AML other m 2020-10-01T13:06:48.14
IV.APEC.HNN. ML:2.2 0.00014324015 0.3712 AML other m 2020-10-01T13:06:48.02
IV.APEC.HHE. ML:1.6 4.370459E-5 0.1024 AML other m 2020-10-01T13:06:47.92
IV.APEC.HHN. ML:1.9 7.450048E-5 0.0576 AML other m 2020-10-01T13:06:48.16
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