Earthquake with magnitude of ML 0.9 on date 17-09-2019 and time 02:56:55 (UTC) in region 3 km NE Norcia (PG)

A magnitude ML 0.9 earthquake occured in region: 3 km NE Norcia (PG), on

  • 17-09-2019 02:56:55 (UTC)
  • 17-09-2019 04:56:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.81, 13.11 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 3 4957 4957
Preci PG 10 724 5681
Castelsantangelo sul Nera MC 10 281 5962
Cascia PG 13 3217 9179
Visso MC 13 1107 10286
Ussita MC 15 444 10730
Arquata del Tronto AP 16 1178 11908
Cerreto di Spoleto PG 16 1075 12983
Accumoli RI 17 667 13650
Sellano PG 17 1079 14729
Poggiodomo PG 18 117 14846
Montegallo AP 18 523 15369

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 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)
67 Km E of Perugia (166134 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km N of Tivoli (56533 inhabitants)
98 Km W of Pescara (121014 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 0.9 2019-09-17
02:56:55
42.81 13.11 10 2019-09-17
03:15:22
Sala Sismica INGV-Roma 72478361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-17 02:56:55 ± 0.06
Latitude 42.81 ± 0.00
Longitude 13.11 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72478361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 292
Semi-minor axis of confidence ellipse (meter) 268
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 247
Circular confidence region, given by single value of horizontal uncertainty (meter) 290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 89
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30847
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 14
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 72478361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-17 03:15:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GUMA.HHZ. 2019-09-17T02:57:07.08 0.6 undecidable manual S 33 0.2977 50 0.12 47
IV.MF5.EHZ. 2019-09-17T02:57:07.96 0.6 undecidable manual S 55 0.3085 50 0.69 40
IV.CSP1.EHZ. 2019-09-17T02:57:06.46 0.3 undecidable manual S 14 0.2869 50 -0.16 70
IV.EL6.EHZ. 2019-09-17T02:57:05.65 3.0 undecidable manual P -0.51 0
IV.CESI.HHZ. 2019-09-17T02:57:05.32 0.3 undecidable manual S 322 0.2446 50 -0.06 72
IV.ASSB.HHZ. 2019-09-17T02:57:04.66 3.0 undecidable manual P 0.45 0
IV.LNSS.HHZ. 2019-09-17T02:57:04.61 0.3 undecidable manual S 194 0.2167 112 0.22 70
IV.TERO.HHZ. 2019-09-17T02:57:04.04 3.0 undecidable manual P 0.04 0
IV.FDMO.HHZ. 2019-09-17T02:57:04.47 0.3 undecidable manual S 355 0.2239 111 -0.18 71
IV.MNTT.EHZ. 2019-09-17T02:57:04.90 3.0 negative manual P 0.41 0
IV.MTRA.EHZ. 2019-09-17T02:57:04.49 0.6 undecidable manual S 105 0.2158 112 0.13 48
IV.T1299.EHZ. 2019-09-17T02:57:04.46 0.3 undecidable manual S 145 0.2176 112 0.03 73
IV.GAVE.EHZ. 2019-09-17T02:57:03.92 0.3 undecidable manual S 233 0.2005 114 0.1 72
IT.MTCL.HGZ. 2019-09-17T02:57:03.64 0.3 undecidable manual S 335 0.1988 114 -0.11 72
IV.GUMA.HHZ. 2019-09-17T02:57:02.06 0.3 undecidable manual P 33 0.2977 50 0 72
IV.MMO1.EHZ. 2019-09-17T02:57:02.93 0.3 undecidable manual S 61 0.179 116 -0.14 72
IV.MF5.EHZ. 2019-09-17T02:57:02.28 0.3 undecidable manual P 55 0.3085 50 0.04 72
IV.FEMA.HNZ. 2019-09-17T02:57:02.60 0.3 undecidable manual S 343 0.1556 119 0.33 69
IV.ARRO.EHZ. 2019-09-17T02:57:02.83 3.0 positive manual P -0.25 0
IV.MC2.EHZ. 2019-09-17T02:57:01.84 0.6 undecidable manual S 30 0.1133 128 0.94 37
IV.CESI.HHZ. 2019-09-17T02:57:01.30 0.3 undecidable manual P 322 0.2446 50 0.15 71
IV.CSP1.EHZ. 2019-09-17T02:57:01.66 0.3 undecidable manual P 14 0.2869 50 -0.21 69
IV.RM33.EHZ. 2019-09-17T02:57:01.93 3.0 undecidable manual P -0.38 0
IV.FDMO.HHZ. 2019-09-17T02:57:00.49 0.1 positive manual P 355 0.2239 111 -0.24 93
IV.MTRA.EHZ. 2019-09-17T02:57:00.23 0.6 positive manual P 105 0.2158 112 -0.33 46
IV.T1299.EHZ. 2019-09-17T02:57:00.49 0.1 undecidable manual P 145 0.2176 112 -0.12 96
IV.GAVE.EHZ. 2019-09-17T02:57:00.25 0.3 undecidable manual P 233 0.2005 114 0 74
IV.LNSS.HHZ. 2019-09-17T02:57:00.44 0.3 undecidable manual P 194 0.2167 112 -0.14 71
IT.MTCL.HGZ. 2019-09-17T02:57:00.10 0.3 undecidable manual P 335 0.1988 114 -0.11 72
IV.MMO1.EHZ. 2019-09-17T02:56:59.52 0.1 undecidable manual P 61 0.179 116 -0.3 93
IV.FEMA.HNZ. 2019-09-17T02:56:59.54 0.3 undecidable manual P 343 0.1556 119 0.18 72
IV.NRCA.HNZ. 2019-09-17T02:56:58.68 0.3 undecidable manual S 4 0.0207 167 -0.18 74
IV.MC2.EHZ. 2019-09-17T02:56:58.69 0.1 undecidable manual P 30 0.1133 128 0.12 97
IV.NRCA.HNZ. 2019-09-17T02:56:57.47 0.1 undecidable manual P 4 0.0207 167 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:1.1 8.655E-5 0.44 AML other m 2019-09-17T02:57:04.60
IV.LNSS.HHN. ML:1.4 0.0001685 0.14 AML other m 2019-09-17T02:57:04.58
IV.LNSS.HHE. ML:1.6 0.000224 0.1 AML other m 2019-09-17T02:57:04.77
IV.FDMO.HHN. ML:1 5.29E-5 1.08 AML other m 2019-09-17T02:57:04.26
IV.CESI.HHN. ML:0.8 3.55E-5 0.24 AML other m 2019-09-17T02:57:05.39
IV.GAVE.EHE. ML:1.3 0.000138 0.28 AML other m 2019-09-17T02:57:05.40
IV.CESI.HHE. ML:0.8 3.345E-5 0.68 AML other m 2019-09-17T02:57:05.60
IV.FDMO.HHE. ML:0.8 3.57E-5 1.2 AML other m 2019-09-17T02:57:05.03
IV.RM33.EHE. ML:0.7 2.105E-5 0.64 AML other m 2019-09-17T02:57:08.34
IV.RM33.EHN. ML:0.8 2.535E-5 0.16 AML other m 2019-09-17T02:57:08.59
IV.GUMA.HHE. ML:1.2 7.45E-5 0.24 AML other m 2019-09-17T02:57:09.22
IV.ARRO.EHN. ML:0.7 1.95E-5 0.66 AML other m 2019-09-17T02:57:09.62
IV.TERO.HHN. ML:0.7 1.465E-5 1.06 AML other m 2019-09-17T02:57:10.59
IV.GUMA.HHN. ML:1.2 7.16E-5 0.62 AML other m 2019-09-17T02:57:10.08
IV.ARRO.EHE. ML:0.7 1.945E-5 0.16 AML other m 2019-09-17T02:57:10.88
IV.TERO.HHE. ML:0.7 1.395E-5 1.4 AML other m 2019-09-17T02:57:10.98
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