Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 18-01-2019 and time 14:55:30 (Italy) in region 4 km E Norcia (PG)

A magnitude ML 1.3 earthquake occured in region: 4 km E Norcia (PG), on

  • 18-01-2019 13:55:30 (UTC)
  • 18-01-2019 14:55:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7750, 13.1390 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.

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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 4 4957 4957
Cascia PG 12 3217 8174
Accumoli RI 13 667 8841
Arquata del Tronto AP 13 1178 10019
Castelsantangelo sul Nera MC 14 281 10300
Preci PG 14 724 11024
Cittareale RI 18 482 11506
Montegallo AP 18 523 12029
Visso MC 18 1107 13136
Poggiodomo PG 18 117 13253
Cerreto di Spoleto PG 19 1075 14328
Ussita MC 19 444 14772

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SE of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
48 Km W of Teramo (54892 inhabitants)
52 Km NW of L'Aquila (69753 inhabitants)
71 Km SE of Perugia (166134 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
93 Km E of Viterbo (67173 inhabitants)
94 Km NE of Tivoli (56533 inhabitants)
95 Km W of Pescara (121014 inhabitants)
97 Km W of Chieti (51815 inhabitants)
99 Km SW of Ancona (100861 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.3 2019-01-18
13:55:30		 42.7748 13.139 7 2019-01-18
14:03:36		 Sala Sismica INGV-Roma 64756111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-01-18 13:55:30 ± 0.16
Latitude 42.7748 ± 0.0036
Longitude 13.1390 ± 0.0061
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 64756111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 505
Semi-minor axis of confidence ellipse (meter) 207
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 124
Circular confidence region, given by single value of horizontal uncertainty (meter) 510.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.32016
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 64756111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-01-18 14:03:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CERT.HHZ. 2019-01-18T13:55:46.28 3.0 positive manual P -1.22 0
IV.MF5.EHZ. 2019-01-18T13:55:43.63 0.6 undecidable manual S 48 35.1426 102 0.22 46
IV.SMA1.EHZ. 2019-01-18T13:55:38.99 0.6 undecidable manual S 135 22.6551 108 -0.2 47
IV.LNSS.HHZ. 2019-01-18T13:55:38.53 0.6 undecidable manual S 203 20.6682 109 -0.03 49
IV.GAVE.HNZ. 2019-01-18T13:55:38.98 0.1 undecidable manual S 245 21.9669 108 0.01 98
IV.MMO1.EHZ. 2019-01-18T13:55:38.27 0.6 undecidable manual S 48 20.5683 110 -0.25 47
IV.CSP1.EHZ. 2019-01-18T13:55:37.60 1.0 negative manual P 9 35.5422 102 -0.61 21
IV.MF5.EHZ. 2019-01-18T13:55:37.91 0.6 negative manual P 48 35.1426 102 -0.22 46
IV.MC2.EHZ. 2019-01-18T13:55:37.28 0.6 undecidable manual S 15 15.6732 115 0.34 46
IV.CESI.HHZ. 2019-01-18T13:55:37.72 0.6 positive manual P 323 31.8459 103 0.23 46
IV.RM33.EHZ. 2019-01-18T13:55:36.87 1.0 negative manual P 168 30.1476 104 -0.28 23
IV.SMA1.EHZ. 2019-01-18T13:55:36.50 0.6 undecidable manual P 135 22.6551 108 0.8 39
IV.FDMO.HHZ. 2019-01-18T13:55:36.56 1.0 undecidable manual P 352 29.3484 104 -0.43 22
IV.GAVE.HNZ. 2019-01-18T13:55:35.51 1.0 undecidable manual P 245 21.9669 108 -0.06 24
IV.MMO1.EHZ. 2019-01-18T13:55:35.09 1.0 undecidable manual P 48 20.5683 110 -0.22 24
IV.LNSS.HHZ. 2019-01-18T13:55:35.28 0.3 undecidable manual P 203 20.6682 109 -0.05 73
IV.MC2.EHZ. 2019-01-18T13:55:34.60 1.0 undecidable manual P 15 15.6732 115 0.2 24
IV.NRCA.HHZ. 2019-01-18T13:55:34.26 0.6 undecidable manual S 343 6.7932 137 -0.14 49
IV.NRCA.HHZ. 2019-01-18T13:55:32.98 0.1 undecidable manual P 343 6.7932 137 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:1.5 0.00066769255 0.0768 AML other m 2019-01-18T13:55:34.34
IV.NRCA.HHN. ML:1.6 0.00082035115 0.0768 AML other m 2019-01-18T13:55:34.38
IV.NRCA.HHE. ML:1.6 0.0008621045000000001 0.0768 AML other m 2019-01-18T13:55:34.38
IV.NRCA.HNE. ML:1.6 0.00086082075 0.0768 AML other m 2019-01-18T13:55:34.38
IV.LNSS.HNE. ML:1.3 0.000149764525 0.928 AML other m 2019-01-18T13:55:46.32
IV.LNSS.HHN. ML:1.3 0.00016693530000000002 0.1984 AML other m 2019-01-18T13:55:38.94
IV.LNSS.HNN. ML:1.3 0.00013872085000000002 0.16 AML other m 2019-01-18T13:55:39.03
IV.LNSS.HHE. ML:1.2 0.000123187395 0.16 AML other m 2019-01-18T13:55:38.68
IV.RM33.HNN. ML:1.3 0.000093825065 0.8768 AML other m 2019-01-18T13:55:37.61
IV.RM33.EHE. ML:0.5 0.00001253873175 0.1792 AML other m 2019-01-18T13:55:41.88
IV.RM33.EHN. ML:0.7 0.00002641254 0.9408 AML other m 2019-01-18T13:55:51.90
IV.RM33.HNE. ML:1.4 0.0001289148 0.7616 AML other m 2019-01-18T13:55:40.37
IV.CSP1.EHN. ML:1.0 0.000039147717 1.12 AML other m 2019-01-18T13:55:41.82
IV.CSP1.EHE. ML:1.2 0.000060750845000000004 2.0416 AML other m 2019-01-18T13:55:54.58
IV.CESI.HHN. ML:0.8 0.000029783419999999998 1.0176 AML other m 2019-01-18T13:55:38.41
IV.CESI.HHE. ML:1.0 0.000043457335 1.0752 AML other m 2019-01-18T13:55:53.65
IV.MF5.EHN. ML:1.6 0.000151845351 1.4592 AML other m 2019-01-18T13:55:46.79
IV.MF5.EHE. ML:1.2 0.000070434205 1.5168 AML other m 2019-01-18T13:55:39.15
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download