INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.2 on date 20-01-2019 and time 20:07:34 (Italy) in region 6 km E Norcia (PG)

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

  • 20-01-2019 19:07:34 (UTC)
  • 20-01-2019 20:07:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.77, 13.16 at 9 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
Accumoli RI 11 667 5624
Arquata del Tronto AP 12 1178 6802
Cascia PG 13 3217 10019
Castelsantangelo sul Nera MC 14 281 10300
Preci PG 15 724 11024
Montegallo AP 17 523 11547
Cittareale RI 17 482 12029
Visso MC 19 1107 13136
Poggiodomo PG 19 117 13253
Amatrice RI 19 2657 15910
Ussita MC 19 444 16354
Montemonaco AP 20 604 16958

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
47 Km W of Teramo (54892 inhabitants)
48 Km NE of Terni (111501 inhabitants)
51 Km NW of L'Aquila (69753 inhabitants)
73 Km SE of Perugia (166134 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
93 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km W of Pescara (121014 inhabitants)
95 Km NE of Tivoli (56533 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
95 Km NW of Chieti (51815 inhabitants)
99 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
Rev 100 ML 1.2 2019-01-20
19:07:34
42.77 13.16 9 2019-01-20
19:30:03
Sala Sismica INGV-Roma 64827131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-20 19:07:34 ± 0.05
Latitude 42.77 ± 0.00
Longitude 13.16 ± 0.00
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 64827131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 332
Semi-minor axis of confidence ellipse (meter) 211
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 269
Circular confidence region, given by single value of horizontal uncertainty (meter) 330
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 26
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) 0.50722
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 64827131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-20 19:30:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.PE3.EHZ. 2019-01-20T19:08:08.32 3.0 undecidable manual S -3.13 0
IV.GUMA.HHZ. 2019-01-20T19:07:47.89 0.3 undecidable manual S 24 0.3184 50 0.49 66
IV.CESI.HHZ. 2019-01-20T19:07:46.59 0.3 undecidable manual S 322 0.2959 50 -0.16 71
IV.CAMP.HHZ. 2019-01-20T19:07:46.58 0.3 undecidable manual S 142 0.3013 50 -0.33 69
IV.SNTG.HHZ. 2019-01-20T19:07:45.42 0.6 undecidable manual P 342 0.5072 50 0.04 47
IV.FDMO.HHZ. 2019-01-20T19:07:45.76 0.3 undecidable manual S 349 0.268 106 0.02 74
IV.MOMA.HHZ. 2019-01-20T19:07:44.28 0.3 undecidable manual P 274 0.4308 50 0.2 69
IV.GAVE.HNZ. 2019-01-20T19:07:43.94 0.6 undecidable manual S 247 0.2086 110 0.38 46
IV.SMA1.EHZ. 2019-01-20T19:07:43.52 0.3 undecidable manual S 137 0.1943 112 0.49 68
IV.MF5.EHZ. 2019-01-20T19:07:42.26 0.3 undecidable manual P 46 0.3094 50 0.25 70
IV.LNSS.HHZ. 2019-01-20T19:07:42.94 0.3 undecidable manual S 207 0.1898 112 0.04 74
IV.TERO.HHZ. 2019-01-20T19:07:42.82 0.1 undecidable manual P 114 0.3615 50 -0.08 95
IV.GUMA.HHZ. 2019-01-20T19:07:42.25 0.3 undecidable manual P 24 0.3184 50 0.1 72
IV.MMO1.EHZ. 2019-01-20T19:07:42.38 0.3 undecidable manual S 45 0.1781 114 -0.08 74
IV.FDMO.HHZ. 2019-01-20T19:07:41.16 0.1 undecidable manual P 349 0.268 106 -0.04 98
IV.CAMP.HHZ. 2019-01-20T19:07:41.37 0.3 undecidable manual P 142 0.3013 50 -0.5 66
IV.CESI.HHZ. 2019-01-20T19:07:41.59 0.1 undecidable manual P 322 0.2959 50 -0.19 94
IV.MC2.EHZ. 2019-01-20T19:07:41.40 0.6 undecidable manual S 10 0.1403 119 0.23 48
IT.MTCL.HGZ. 2019-01-20T19:07:40.90 0.3 undecidable manual P 333 0.2491 107 0.12 72
IV.GAVE.HNZ. 2019-01-20T19:07:40.03 0.1 undecidable manual P 247 0.2086 110 0.1 98
IV.FEMA.HNZ. 2019-01-20T19:07:40.01 0.6 undecidable manual P 338 0.2041 111 0.16 48
IV.MMO1.EHZ. 2019-01-20T19:07:39.19 0.1 undecidable manual P 45 0.1781 114 -0.12 98
IV.LNSS.HHZ. 2019-01-20T19:07:39.55 0.1 undecidable manual P 207 0.1898 112 0 100
IV.SMA1.EHZ. 2019-01-20T19:07:39.57 0.3 undecidable manual P 137 0.1943 112 -0.06 74
IV.MC2.EHZ. 2019-01-20T19:07:38.65 0.3 undecidable manual P 10 0.1403 119 0.09 74
IV.NRCA.HHZ. 2019-01-20T19:07:38.52 0.3 undecidable manual S 333 0.0674 139 -0.44 70
IV.NRCA.HHZ. 2019-01-20T19:07:37.04 0.1 undecidable manual P 333 0.0674 139 -0.24 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHE. ML:1.2 4.67E-5 0.44 AML other m 2019-01-20T19:07:53.61
IV.NRCA.HNN. ML:1.9 0.00131 0.1 AML other m 2019-01-20T19:07:38.91
IV.CESI.HHN. ML:1.4 0.00010135 1.8 AML other m 2019-01-20T19:07:46.96
IV.GUMA.HHN. ML:1.6 0.0001605 0.52 AML other m 2019-01-20T19:07:50.58
IV.MOMA.HHN. ML:1 2.98E-5 0.18 AML other m 2019-01-20T19:07:53.77
IV.NRCA.HHE. ML:2.2 0.0024987165 0.1664 AML other m 2019-01-20T19:07:39.03
IV.NRCA.HNE. ML:2.2 0.0023004735 0.1536 AML other m 2019-01-20T19:07:39.03
IV.LNSS.HHE. ML:1.4 0.0001906582 0.1408 AML other m 2019-01-20T19:07:45.31
IV.LNSS.HHN. ML:1.3 0.0001473964 0.2688 AML other m 2019-01-20T19:07:43.08
IV.SMA1.EHN. ML:1.3 0.00014468765 0.3328 AML other m 2019-01-20T19:07:46.85
IV.SMA1.EHE. ML:1.2 0.000123351025 0.6656 AML other m 2019-01-20T19:07:51.16
IV.FDMO.HHN. ML:0.9 4.1237905E-5 0.256 AML other m 2019-01-20T19:07:46.00
IV.CAMP.HHN. ML:0.7 1.9504365E-5 0.5888 AML other m 2019-01-20T19:07:46.60
IV.CAMP.HHE. ML:0.4 1.2425824E-5 0.256 AML other m 2019-01-20T19:07:46.76
IV.CESI.HHE. ML:1.1 5.168138E-5 0.2176 AML other m 2019-01-20T19:07:47.20
IV.GUMA.HHE. ML:1.6 0.0001566377 0.32 AML other m 2019-01-20T19:07:50.02
IV.TERO.HHE. ML:0.9 2.744588E-5 0.1536 AML other m 2019-01-20T19:07:48.69
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