Earthquake with magnitude of ML 1.2 on date 04-10-2019 and time 07:33:47 (Italy) in region 6 km SE Norcia (PG)

A magnitude ML 1.2 earthquake occured in region: 6 km SE Norcia (PG), on

  • 04-10-2019 05:33:47 (UTC)
  • 04-10-2019 07:33:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.75, 13.13 at 10 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 6 4957 4957
Cascia PG 10 3217 8174
Accumoli RI 11 667 8841
Arquata del Tronto AP 14 1178 10019
Cittareale RI 15 482 10501
Poggiodomo PG 16 117 10618
Preci PG 16 724 11342
Castelsantangelo sul Nera MC 17 281 11623
Monteleone di Spoleto PG 18 599 12222
Amatrice RI 19 2657 14879
Cerreto di Spoleto PG 19 1075 15954
Montegallo AP 20 523 16477

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km SE of Foligno (57155 inhabitants)
44 Km E of Terni (111501 inhabitants)
48 Km W of Teramo (54892 inhabitants)
49 Km NW of L'Aquila (69753 inhabitants)
72 Km SE of Perugia (166134 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km NE of Tivoli (56533 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
94 Km W of Pescara (121014 inhabitants)
96 Km W 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
Rev 100 ML 1.2 2019-10-04
05:33:47
42.75 13.13 11 2019-10-04
05:42:11
Sala Sismica INGV-Roma 73034631
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-04 05:33:47 ± 0.1
Latitude 42.75 ± 0.00
Longitude 13.13 ± 0.01
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 73034631

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 780
Semi-minor axis of confidence ellipse (meter) 296
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 257
Circular confidence region, given by single value of horizontal uncertainty (meter) 780
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 90
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.08723
Epicentral distance of station farthest from the epicenter (degree) 0.58276
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:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 73034631
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-04 05:42:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.EL6.EHZ. 2019-10-04T05:34:08.09 0.3 undecidable manual S 358 0.5828 50 0.89 51
IV.CSP1.EHZ. 2019-10-04T05:34:00.41 0.1 undecidable manual S 9 0.3489 50 0.11 92
IV.TERO.HHZ. 2019-10-04T05:34:00.85 0.3 undecidable manual S 109 0.3714 50 -0.09 70
IV.CESI.HHZ. 2019-10-04T05:33:58.79 0.6 undecidable manual S 328 0.3049 50 -0.2 46
IV.FDMO.HHZ. 2019-10-04T05:33:58.24 0.6 undecidable manual S 354 0.2905 50 -0.33 45
IV.EL6.EHZ. 2019-10-04T05:33:58.56 0.3 undecidable manual P 358 0.5828 50 -0.26 65
IV.RM33.EHZ. 2019-10-04T05:33:57.15 0.3 undecidable manual S 165 0.2464 50 -0.09 72
IV.MMO1.EHZ. 2019-10-04T05:33:56.02 0.6 undecidable manual S 44 0.2113 50 -0.18 47
IV.TERO.HHZ. 2019-10-04T05:33:55.28 0.3 undecidable manual P 109 0.3714 50 0.07 70
IV.MC2.EHZ. 2019-10-04T05:33:55.06 0.3 undecidable manual S 15 0.17 119 0.18 72
IV.ARRO.EHZ. 2019-10-04T05:33:54.71 0.3 undecidable manual P 238 0.3148 50 0.47 65
IV.CSP1.EHZ. 2019-10-04T05:33:54.69 0.6 undecidable manual P 9 0.3489 50 -0.14 46
IV.FDMO.HHZ. 2019-10-04T05:33:53.57 0.3 negative manual P 354 0.2905 50 -0.26 69
IV.CESI.HHZ. 2019-10-04T05:33:53.81 0.3 undecidable manual P 328 0.3049 50 -0.27 68
IV.RM33.EHZ. 2019-10-04T05:33:52.89 0.1 undecidable manual P 165 0.2464 50 -0.18 94
IV.MMO1.EHZ. 2019-10-04T05:33:52.45 0.3 undecidable manual P 44 0.2113 50 -0.02 73
IV.NRCA.HNZ. 2019-10-04T05:33:52.12 0.6 undecidable manual S 353 0.0872 137 -0.21 47
IV.SMA1.EHZ. 2019-10-04T05:33:52.50 0.3 undecidable manual P 127 0.1916 116 0.38 68
IV.MC2.EHZ. 2019-10-04T05:33:51.69 0.1 undecidable manual P 15 0.17 119 -0.01 98
IV.NRCA.HNZ. 2019-10-04T05:33:50.27 0.1 negative manual P 353 0.0872 137 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.5 0.0004240608 0.0608 AML other m 2019-10-04T05:33:52.99
IV.NRCA.HHN. ML:1.5 0.00043330945 0.08 AML other m 2019-10-04T05:33:52.15
IV.NRCA.HNE. ML:1.5 0.0004231354 0.0704 AML other m 2019-10-04T05:33:52.00
IV.NRCA.HNN. ML:1.5 0.00037874415 0.08 AML other m 2019-10-04T05:33:52.15
IV.SMA1.EHE. ML:1 7.2682225E-5 0.24 AML other m 2019-10-04T05:33:57.50
IV.SMA1.EHN. ML:1 7.2721375E-5 0.1792 AML other m 2019-10-04T05:33:56.96
IV.RM33.EHE. ML:1 5.248282E-5 0.08 AML other m 2019-10-04T05:33:57.94
IV.RM33.EHN. ML:1 5.1060695E-5 0.1216 AML other m 2019-10-04T05:33:58.12
IV.FDMO.HHE. ML:1.1 5.577756E-5 0.1024 AML other m 2019-10-04T05:33:58.82
IV.FDMO.HHN. ML:1 5.061096E-5 0.2016 AML other m 2019-10-04T05:33:58.42
IV.CESI.HHE. ML:0.9 3.486298E-5 0.2592 AML other m 2019-10-04T05:33:59.24
IV.CESI.HHN. ML:1.2 6.7433535E-5 0.3584 AML other m 2019-10-04T05:33:58.98
IV.CESI.HNE. ML:1.5 0.00012789115 0.8192 AML other m 2019-10-04T05:34:03.30
IV.TERO.HHE. ML:1 3.1786585E-5 0.1216 AML other m 2019-10-04T05:34:01.80
IV.TERO.HHN. ML:1.1 4.360236495E-5 0.5024 AML other m 2019-10-04T05:34:08.63
IV.TERO.HNN. ML:1.3 6.624149E-5 0.7488 AML other m 2019-10-04T05:34:04.61
IV.EL6.EHE. ML:1.9 0.000160962775 1.6 AML other m 2019-10-04T05:34:14.10
IV.EL6.EHN. ML:1.9 0.00015866555 1.5392 AML other m 2019-10-04T05:34:14.59
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