Earthquake with magnitude of ML 1.6 on date 12-02-2019 and time 03:42:21 (UTC) in region 3 km E Norcia (PG)

A magnitude ML 1.6 earthquake occured in region: 3 km E Norcia (PG), on

  • 12-02-2019 03:42:21 (UTC)
  • 12-02-2019 04:42:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.79, 13.13 at 7 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 12 281 5238
Cascia PG 12 3217 8455
Preci PG 13 724 9179
Arquata del Tronto AP 14 1178 10357
Accumoli RI 14 667 11024
Visso MC 16 1107 12131
Ussita MC 18 444 12575
Cerreto di Spoleto PG 18 1075 13650
Montegallo AP 18 523 14173
Poggiodomo PG 18 117 14290
Cittareale RI 19 482 14772
Sellano PG 20 1079 15851

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
49 Km W of Teramo (54892 inhabitants)
53 Km NW of L'Aquila (69753 inhabitants)
70 Km SE of Perugia (166134 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
94 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km N of Tivoli (56533 inhabitants)
96 Km W of Pescara (121014 inhabitants)
98 Km SW of Ancona (100861 inhabitants)
98 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
Rev 100 ML 1.6 2019-02-12
03:42:21
42.79 13.13 7 2019-02-12
03:46:23
Sala Sismica INGV-Roma 65423701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-02-12 03:42:21 ± 0.1
Latitude 42.79 ± 0.00
Longitude 13.13 ± 0.00
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 65423701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 360
Semi-minor axis of confidence ellipse (meter) 63
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 249
Circular confidence region, given by single value of horizontal uncertainty (meter) 360
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.04676
Epicentral distance of station farthest from the epicenter (degree) 0.42808
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 18
Type of magnitude ML
Reference to an origin 65423701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-02-12 03:46:23
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MF5.EHZ. 2019-02-12T03:42:34.40 0.1 undecidable manual S 50 0.313 102 0.49 90
IV.RM33.EHZ. 2019-02-12T03:42:32.83 0.1 undecidable manual S 167 0.286 103 -0.04 100
IV.CESI.HHZ. 2019-02-12T03:42:32.47 0.1 undecidable manual S 323 0.2725 104 0.1 99
IV.FDMO.HHZ. 2019-02-12T03:42:31.71 0.1 undecidable manual S 353 0.25 105 0.17 98
IV.ASSB.HHZ. 2019-02-12T03:42:30.60 0.6 negative manual P 307 0.4281 50 -0.19 47
IV.SMA1.EHZ. 2019-02-12T03:42:30.96 0.1 undecidable manual S 136 0.2176 107 0.61 88
IV.GAVE.EHZ. 2019-02-12T03:42:29.73 0.1 undecidable manual S 241 0.1979 109 0.12 100
IV.MTRA.EHZ. 2019-02-12T03:42:29.42 0.1 undecidable manual S 99 0.1979 109 -0.2 98
IV.ARRO.EHZ. 2019-02-12T03:42:29.24 1.0 negative manual P 232 0.339 101 -0.02 25
IV.TERO.HHZ. 2019-02-12T03:42:29.22 1.0 undecidable manual P 115 0.3849 50 -0.83 19
IV.MMO1.EHZ. 2019-02-12T03:42:28.91 0.1 undecidable manual S 52 0.1826 110 -0.13 100
IV.MF5.EHZ. 2019-02-12T03:42:28.78 1.0 negative manual P 50 0.313 102 0.09 25
IV.RM33.EHZ. 2019-02-12T03:42:27.56 0.6 negative manual P 167 0.286 103 -0.54 45
IV.CESI.HHZ. 2019-02-12T03:42:27.86 0.3 negative manual P 323 0.2725 104 0.06 75
IV.FDMO.HHZ. 2019-02-12T03:42:27.23 1.0 positive manual P 353 0.25 105 -0.1 25
IV.SMA1.EHZ. 2019-02-12T03:42:26.51 0.1 undecidable manual P 136 0.2176 107 -0.13 99
IV.GAVE.EHZ. 2019-02-12T03:42:26.43 0.6 undecidable manual P 241 0.1979 109 0.22 49
IV.MTRA.EHZ. 2019-02-12T03:42:26.20 0.6 undecidable manual P 99 0.1979 109 -0.02 51
IV.LNSS.HHZ. 2019-02-12T03:42:26.23 0.6 negative manual P 200 0.1961 109 0.05 51
IV.MMO1.EHZ. 2019-02-12T03:42:25.67 0.1 positive manual P 52 0.1826 110 -0.21 98
IV.NRCA.HHZ. 2019-02-12T03:42:24.40 0.1 undecidable manual S 346 0.0468 145 -0.31 99
IV.NRCA.HHZ. 2019-02-12T03:42:23.30 1.0 undecidable manual P 346 0.0468 145 -0.08 26
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.HNE. ML:1.8 0.0003995 0.32 AML other m 2019-02-12T03:42:29.42
IV.MTRA.EHE. ML:1.7 0.000373 0.8 AML other m 2019-02-12T03:42:30.58
IV.MTRA.HNN. ML:1.7 0.000358 0.36 AML other m 2019-02-12T03:42:30.13
IV.MTRA.EHN. ML:1.7 0.000385 1.5 AML other m 2019-02-12T03:42:30.15
IV.GAVE.EHN. ML:1.6 0.000273 0.44 AML other m 2019-02-12T03:42:31.63
IV.LNSS.HHE. ML:1.5 0.0002345 0.6 AML other m 2019-02-12T03:42:31.67
IV.GAVE.EHE. ML:1.7 0.0003865 0.3 AML other m 2019-02-12T03:42:31.76
IV.RM33.EHN. ML:1.6 0.0001645 0.42 AML other m 2019-02-12T03:42:32.28
IV.FDMO.HHN. ML:1.3 0.00011305 1.06 AML other m 2019-02-12T03:42:32.14
IV.LNSS.HHN. ML:1.5 0.0002155 0.84 AML other m 2019-02-12T03:42:32.71
IV.SMA1.EHN. ML:1.6 0.0002285 0.9 AML other m 2019-02-12T03:42:33.60
IV.RM33.EHE. ML:1.5 0.00013405 0.96 AML other m 2019-02-12T03:42:33.72
IV.CESI.HHN. ML:1.7 0.0002615 1.16 AML other m 2019-02-12T03:42:33.89
IV.FDMO.HHE. ML:1.3 0.0001138 0.38 AML other m 2019-02-12T03:42:33.91
IV.CESI.HHE. ML:1.6 0.0001775 0.92 AML other m 2019-02-12T03:42:35.05
IV.TERO.HHE. ML:1.3 6.0E-5 0.86 AML other m 2019-02-12T03:42:36.46
IV.SMA1.EHE. ML:1.6 0.0002315 0.46 AML other m 2019-02-12T03:42:37.09
IV.TERO.HHN. ML:1.4 7.46E-5 0.84 AML other m 2019-02-12T03:42:38.55
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