INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.1 on date 17-02-2019 and time 11:45:57 (Italy) in region 1 km NW Norcia (PG)

A magnitude ML 1.1 earthquake occured in region: 1 km NW Norcia (PG), on

  • 17-02-2019 10:45:57 (UTC)
  • 17-02-2019 11:45:57 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8, 13.09 at 16 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 1 4957 4957
Preci PG 10 724 5681
Cascia PG 11 3217 8898
Castelsantangelo sul Nera MC 12 281 9179
Cerreto di Spoleto PG 14 1075 10254
Visso MC 15 1107 11361
Poggiodomo PG 16 117 11478
Sellano PG 17 1079 12557
Ussita MC 17 444 13001
Arquata del Tronto AP 17 1178 14179
Accumoli RI 17 667 14846
Vallo di Nera PG 19 364 15210
Monteleone di Spoleto PG 20 599 15809

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
45 Km NE of Terni (111501 inhabitants)
53 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
67 Km SE of Perugia (166134 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
92 Km W of Montesilvano (53738 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
99 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 1.1 2019-02-17
10:45:57
42.8 13.09 16 2019-02-17
10:52:14
Sala Sismica INGV-Roma 65623961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-17 10:45:57 ± 0.13
Latitude 42.80 ± 0.00
Longitude 13.09 ± 0.01
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65623961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 530
Semi-minor axis of confidence ellipse (meter) 244
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 104
Circular confidence region, given by single value of horizontal uncertainty (meter) 530
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 127
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.30487
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 65623961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-17 10:52:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CH.FUORN.HHZ. 2019-02-17T10:47:30.29 3.0 undecidable manual Sn -7.59 0
IV.MBAL.EHZ. 2019-02-17T10:47:22.18 3.0 undecidable manual Sg 7.28 0
GU.CANO.HHZ. 2019-02-17T10:47:13.33 3.0 undecidable manual Sn -9.99 0
OX.SABO.HNZ. 2019-02-17T10:47:08.50 3.0 undecidable manual Sn -2.18 0
IV.VBKN.HHZ. 2019-02-17T10:47:07.75 3.0 undecidable manual Sg 16.33 0
IV.PLLN.EHZ. 2019-02-17T10:47:06.25 3.0 positive manual Pg 11.61 0
IV.NDIM.HNZ. 2019-02-17T10:46:59.44 3.0 undecidable manual Sg -0.78 0
IV.EUCT.HNZ. 2019-02-17T10:46:47.53 3.0 undecidable manual Pg 7.86 0
IV.TDS.HHZ. 2019-02-17T10:46:40.69 3.0 undecidable manual Pn -1.31 0
IV.RIBO.EHZ.01 2019-02-17T10:46:33.29 3.0 undecidable manual Sn -6.71 0
IV.VIVA.HHZ. 2019-02-17T10:46:31.10 3.0 undecidable manual Sn -1.33 0
IT.VNF1.HGZ. 2019-02-17T10:46:20.47 3.0 negative manual Pg 7.68 0
IV.IMOL.HNZ. 2019-02-17T10:46:15.67 3.0 negative manual Pg -0.61 0
IV.RM33.EHZ. 2019-02-17T10:46:09.03 0.6 undecidable manual S 162 0.3049 103 0.03 49
IV.FDMO.HHZ. 2019-02-17T10:46:07.22 0.6 undecidable manual S 360 0.2365 109 0.17 48
IV.RCAV.EHZ. 2019-02-17T10:46:07.29 3.0 undecidable manual Pn -1.42 0
IV.SMA1.EHZ. 2019-02-17T10:46:07.76 0.6 undecidable manual S 133 0.2473 108 0.41 46
IV.LNSS.HHZ. 2019-02-17T10:46:06.09 0.6 undecidable manual S 190 0.2005 114 0.03 50
IV.MTRA.EHZ. 2019-02-17T10:46:06.53 0.6 undecidable manual S 101 0.2293 110 -0.31 47
IV.ASSB.HHZ. 2019-02-17T10:46:06.03 3.0 negative manual Pg 0.93 0
IV.FIR.HHZ. 2019-02-17T10:46:06.29 3.0 undecidable manual Pn -8.63 0
IV.GAVE.EHZ. 2019-02-17T10:46:05.67 0.3 undecidable manual S 233 0.1799 118 0.17 74
IV.TERO.HHZ. 2019-02-17T10:46:05.92 3.0 positive manual Pn 1.27 0
IV.MMO1.EHZ. 2019-02-17T10:46:05.80 0.6 undecidable manual S 60 0.1996 114 -0.25 48
IV.RM33.EHZ. 2019-02-17T10:46:04.03 0.1 undecidable manual P 162 0.3049 103 -0.04 98
IV.MC2.EHZ. 2019-02-17T10:46:04.26 0.3 undecidable manual S 33 0.1331 129 -0.08 75
IV.SMA1.EHZ. 2019-02-17T10:46:03.16 0.3 undecidable manual P 133 0.2473 108 0.04 74
IV.FDMO.HHZ. 2019-02-17T10:46:03.15 1.0 undecidable manual P 360 0.2365 109 0.2 24
IV.MMO1.EHZ. 2019-02-17T10:46:02.41 0.3 undecidable manual P 60 0.1996 114 0.04 75
IV.LNSS.HHZ. 2019-02-17T10:46:02.52 0.6 undecidable manual P 190 0.2005 114 0.14 49
IV.MTRA.EHZ. 2019-02-17T10:46:02.78 0.6 negative manual P 101 0.2293 110 -0.05 50
IV.GAVE.EHZ. 2019-02-17T10:46:01.32 0.6 positive manual P 233 0.1799 118 -0.74 41
IV.MC2.EHZ. 2019-02-17T10:46:01.49 0.1 undecidable manual P 33 0.1331 129 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.3 0.0001245 0.4 AML other m 2019-02-17T10:46:06.32
IV.GAVE.EHN. ML:1 6.85E-5 1.16 AML other m 2019-02-17T10:46:06.35
IV.LNSS.HHN. ML:1.3 0.0001177 0.68 AML other m 2019-02-17T10:46:06.71
IV.MTRA.EHN. ML:1.2 9.21E-5 0.62 AML other m 2019-02-17T10:46:07.24
IV.GAVE.EHE. ML:1.1 7.465E-5 0.7 AML other m 2019-02-17T10:46:07.41
IV.FDMO.HHN. ML:1 4.87E-5 0.44 AML other m 2019-02-17T10:46:07.37
IV.FDMO.HHE. ML:0.8 3.575E-5 0.68 AML other m 2019-02-17T10:46:07.95
IV.MTRA.EHE. ML:1.2 8.5E-5 1.44 AML other m 2019-02-17T10:46:07.97
IV.SMA1.EHE. ML:1.1 5.685E-5 0.22 AML other m 2019-02-17T10:46:08.13
IV.SMA1.EHN. ML:1 4.98E-5 0.12 AML other m 2019-02-17T10:46:09.14
IV.RM33.EHN. ML:1.1 4.29E-5 0.24 AML other m 2019-02-17T10:46:09.54
IV.RM33.EHE. ML:1 3.905E-5 0.88 AML other m 2019-02-17T10:46:10.79
IV.TERO.HHE. ML:0.7 1.595E-5 0.2 AML other m 2019-02-17T10:46:13.33
IV.TERO.HHN. ML:0.9 1.775E-5 0.44 AML other m 2019-02-17T10:46:14.42
IV.RCAV.EHE. ML:2.1 0.00010975 0.12 AML other m 2019-02-17T10:46:47.82
IV.FIR.HHE. ML:3.3 0.0006545 0.08 AML other m 2019-02-17T10:46:48.36
IV.FIR.HHN. ML:2.9 0.000296 0.54 AML other m 2019-02-17T10:46:48.81
IV.RCAV.EHN. ML:2.4 0.000213 0.1 AML other m 2019-02-17T10:46:48.93
IV.VIVA.HHN. ML:3 0.0008235 0.16 AML other m 2019-02-17T10:46:56.96
IV.VIVA.HHE. ML:3.2 0.00132 0.06 AML other m 2019-02-17T10:46:57.53
IV.NDIM.HHE. ML:3.7 0.0007115 0.08 AML other m 2019-02-17T10:47:00.17
IV.NDIM.HHN. ML:3.7 0.000714 1.9 AML other m 2019-02-17T10:47:02.03
OX.SABO.HNN. ML:4.6 0.003325 0.88 AML other m 2019-02-17T10:47:09.69
OX.SABO.HNE. ML:4.7 0.004185 0.9 AML other m 2019-02-17T10:47:09.69
IV.EUCT.HNN. ML:4.2 0.0009395 0.06 AML other m 2019-02-17T10:47:46.95
IV.EUCT.HNE. ML:4.1 0.000623 0.84 AML other m 2019-02-17T10:47:59.65
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