Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 19-07-2019 and time 00:26:31 (UTC) in region 3 km NE Norcia (PG)

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

  • 19-07-2019 00:26:31 (UTC)
  • 19-07-2019 02:26:31 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8200, 13.1080 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.

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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 3 4957 4957
Preci PG 9 724 5681
Castelsantangelo sul Nera MC 9 281 5962
Visso MC 13 1107 7069
Cascia PG 14 3217 10286
Ussita MC 14 444 10730
Cerreto di Spoleto PG 16 1075 11805
Arquata del Tronto AP 16 1178 12983
Sellano PG 17 1079 14062
Accumoli RI 18 667 14729
Poggiodomo PG 19 117 14846
Montegallo AP 19 523 15369

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
52 Km W of Teramo (54892 inhabitants)
57 Km NW of L'Aquila (69753 inhabitants)
67 Km E of Perugia (166134 inhabitants)
92 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)
99 Km N of Tivoli (56533 inhabitants)
99 Km W of Pescara (121014 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 0.9 2019-07-19
00:26:31		 42.8203 13.108 10 2019-07-19
00:32:01		 Sala Sismica INGV-Roma 70694751
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-19 00:26:31 ± 0.11
Latitude 42.8203 ± 0.0063
Longitude 13.1080 ± 0.0086
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70694751

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 744
Semi-minor axis of confidence ellipse (meter) 553
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 312
Circular confidence region, given by single value of horizontal uncertainty (meter) 740.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.01439
Epicentral distance of station farthest from the epicenter (degree) 0.30667
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 70694751
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-19 00:32:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SMA1.EHZ. 2019-07-19T00:26:41.97 0.3 undecidable manual S 139 28.0497 50 0.37 68
IV.FDMO.HHZ. 2019-07-19T00:26:40.27 0.3 undecidable manual S 356 24.0537 112 -0.09 73
IV.GAVE.EHZ. 2019-07-19T00:26:39.62 0.3 undecidable manual S 231 22.4553 113 -0.24 71
IV.MMO1.EHZ. 2019-07-19T00:26:38.79 0.3 undecidable manual S 64 19.869 116 -0.24 71
IV.MF5.EHZ. 2019-07-19T00:26:38.48 0.3 undecidable manual P 57 34.0437 50 0.27 69
IV.GAVE.EHZ. 2019-07-19T00:26:36.36 0.3 undecidable manual P 231 22.4553 113 0.09 73
IV.SMA1.EHZ. 2019-07-19T00:26:36.80 0.3 undecidable manual P 139 28.0497 50 -0.48 67
IV.FDMO.HHZ. 2019-07-19T00:26:36.49 0.1 undecidable manual P 356 24.0537 112 -0.07 97
IV.MTRA.EHZ. 2019-07-19T00:26:36.38 0.3 undecidable manual P 107 24.5532 112 -0.27 70
IV.MMO1.EHZ. 2019-07-19T00:26:35.82 0.1 undecidable manual P 64 19.869 116 0.03 99
IV.NRCA.HNZ. 2019-07-19T00:26:34.91 0.1 undecidable manual S 19 1.5984 171 0.12 100
IV.NRCA.HNZ. 2019-07-19T00:26:33.69 0.1 undecidable manual P 19 1.5984 171 0.35 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0.0 0.0007310374 0.08 AML other m 2019-07-19T00:26:35.06
IV.NRCA.HHN. ML:0.0 0.0007561218999999999 0.08 AML other m 2019-07-19T00:26:35.06
IV.NRCA.HNE. ML:0.0 0.00063114615 0.08 AML other m 2019-07-19T00:26:35.06
IV.NRCA.HNN. ML:0.0 0.0007603681 0.08 AML other m 2019-07-19T00:26:35.06
IV.GAVE.EHE. ML:1.3 0.00013430158000000001 0.1 AML other m 2019-07-19T00:26:40.00
IV.GAVE.EHN. ML:1.3 0.00013162175 0.26 AML other m 2019-07-19T00:26:40.14
IV.MTRA.EHE. ML:1.0 0.00005393742999999999 0.24 AML other m 2019-07-19T00:26:41.98
IV.MTRA.EHN. ML:0.8 0.000037893280000000004 0.12 AML other m 2019-07-19T00:26:42.11
IV.FDMO.HHE. ML:0.8 0.000035394975 0.18 AML other m 2019-07-19T00:26:40.99
IV.FDMO.HHN. ML:0.7 0.000028561435000000003 0.2 AML other m 2019-07-19T00:26:42.97
IV.SMA1.EHE. ML:0.8 0.00002873604 0.42 AML other m 2019-07-19T00:26:45.23
IV.SMA1.EHN. ML:0.8 0.000029765175000000003 0.22 AML other m 2019-07-19T00:26:42.56
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