Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 18-07-2019 and time 14:55:25 (Italy) in region 6 km E Norcia (PG)

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

  • 18-07-2019 12:55:25 (UTC)
  • 18-07-2019 14:55:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7890, 13.1630 at 11 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 6 4957 4957
Arquata del Tronto AP 11 1178 6135
Castelsantangelo sul Nera MC 12 281 6416
Accumoli RI 13 667 7083
Preci PG 14 724 7807
Cascia PG 14 3217 11024
Montegallo AP 15 523 11547
Visso MC 17 1107 12654
Ussita MC 18 444 13098
Montemonaco AP 18 604 13702
Cittareale RI 19 482 14184

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
47 Km W of Teramo (54892 inhabitants)
49 Km NE of Terni (111501 inhabitants)
52 Km NW of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
93 Km W of Pescara (121014 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km NW of Chieti (51815 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
96 Km NE of Tivoli (56533 inhabitants)
97 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 1.2 2019-07-18
12:55:25		 42.7888 13.1628 11 2019-07-18
13:08:36		 Sala Sismica INGV-Roma 70681181
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-07-18 12:55:25 ± 0.05
Latitude 42.7888 ± 0.0027
Longitude 13.1628 ± 0.0049
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 70681181

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 341
Semi-minor axis of confidence ellipse (meter) 278
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 292
Circular confidence region, given by single value of horizontal uncertainty (meter) 340.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.05756
Epicentral distance of station farthest from the epicenter (degree) 0.54229
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 70681181
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-07-18 13:08:36
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RM33.EHZ. 2019-07-18T12:55:36.75 0.3 undecidable manual S 172 31.3464 91 0.12 71
IV.EL6.EHZ. 2019-07-18T12:55:36.69 0.6 undecidable manual P 355 60.1953 90 0.19 45
IV.FDMO.HHZ. 2019-07-18T12:55:35.47 0.3 undecidable manual S 347 28.1496 91 -0.31 69
IV.GAVE.EHZ. 2019-07-18T12:55:34.62 0.3 undecidable manual S 244 24.3534 91 -0.15 73
IV.MOMA.HHZ. 2019-07-18T12:55:34.94 1.0 negative manual P 272 48.3183 90 0.27 23
IV.LNSS.HHZ. 2019-07-18T12:55:34.44 0.3 undecidable manual S 206 22.9548 91 0.05 73
IV.GIGS.HHZ. 2019-07-18T12:55:34.89 1.0 negative manual P 138 50.1165 90 -0.06 24
IV.ARRO.EHZ. 2019-07-18T12:55:33.14 0.3 undecidable manual P 234 39.8268 90 -0.23 70
IV.MTRA.HNZ. 2019-07-18T12:55:33.10 0.3 undecidable manual S 101 19.3695 92 -0.34 71
IV.FEMA.HNE. 2019-07-18T12:55:33.76 0.6 undecidable manual S 334 21.2676 91 -0.19 48
IV.MMO1.EHZ. 2019-07-18T12:55:33.02 0.3 undecidable manual S 47 18.0708 92 -0.09 74
IV.GUMA.HHE. 2019-07-18T12:55:32.76 0.1 undecidable manual P 25 33.4443 90 0.38 91
IV.CAMP.HHZ. 2019-07-18T12:55:32.46 0.3 undecidable manual P 144 34.5432 90 -0.09 73
IV.MC2.EHE. 2019-07-18T12:55:32.06 0.3 undecidable manual S 9 13.7751 100 0.11 74
IV.MF5.EHE. 2019-07-18T12:55:32.66 0.1 undecidable manual P 47 32.745 90 0.39 91
IT.MTCL.HGE. 2019-07-18T12:55:31.14 0.1 undecidable manual P 330 26.3514 91 -0.15 96
IV.RM33.EHZ. 2019-07-18T12:55:31.96 0.1 undecidable manual P 172 31.3464 91 -0.1 98
IV.FDMO.HHZ. 2019-07-18T12:55:31.34 0.1 undecidable manual P 347 28.1496 91 -0.23 94
IV.SMA1.EHZ. 2019-07-18T12:55:30.66 0.1 undecidable manual P 141 22.4553 91 -0.04 100
IV.MTRA.HNZ. 2019-07-18T12:55:30.10 0.1 undecidable manual P 101 19.3695 92 -0.11 99
IV.FEMA.HNE. 2019-07-18T12:55:30.87 0.3 undecidable manual P 334 21.2676 91 0.36 70
IV.GAVE.EHZ. 2019-07-18T12:55:30.88 0.1 undecidable manual P 244 24.3534 91 -0.11 99
IV.T1299.EHE. 2019-07-18T12:55:30.40 0.1 undecidable manual P 150 19.7691 91 0.13 97
IV.LNSS.HHZ. 2019-07-18T12:55:30.78 0.1 undecidable manual P 206 22.9548 91 0.02 99
IV.NRCA.HNZ. 2019-07-18T12:55:30.13 0.6 undecidable manual S 321 6.3936 141 -0.15 51
IV.MMO1.EHZ. 2019-07-18T12:55:29.87 0.1 undecidable manual P 47 18.0708 92 -0.15 98
IV.MC2.EHE. 2019-07-18T12:55:29.49 0.1 undecidable manual P 9 13.7751 100 0.13 98
IV.NRCA.HNZ. 2019-07-18T12:55:28.53 0.1 negative manual P 321 6.3936 141 0.14 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTRA.EHN. ML:1.3 0.0001545 0.18 AML other m 2019-07-18T12:55:34.42
IV.MTRA.EHE. ML:1.4 0.00016999999999999999 0.12 AML other m 2019-07-18T12:55:34.50
IV.LNSS.HHE. ML:1.7 0.00028849999999999997 0.16 AML other m 2019-07-18T12:55:34.80
IV.LNSS.HHN. ML:1.5 0.000208 0.4 AML other m 2019-07-18T12:55:34.94
IV.GAVE.EHE. ML:1.6 0.0002595 0.42 AML other m 2019-07-18T12:55:35.31
IV.GAVE.EHN. ML:1.7 0.00028149999999999996 0.24 AML other m 2019-07-18T12:55:35.42
IV.FDMO.HHN. ML:1.0 0.0000467 1.14 AML other m 2019-07-18T12:55:35.32
IV.FDMO.HHE. ML:0.9 0.000040050000000000004 0.84 AML other m 2019-07-18T12:55:36.29
IV.RM33.EHN. ML:1.0 0.00004505 1.52 AML other m 2019-07-18T12:55:37.08
IV.RM33.EHE. ML:1.0 0.000043249999999999994 0.6 AML other m 2019-07-18T12:55:37.92
IV.ARRO.EHE. ML:0.9 0.00003065 0.18 AML other m 2019-07-18T12:55:40.06
IV.ARRO.EHN. ML:1.0 0.0000348 0.14 AML other m 2019-07-18T12:55:41.27
IV.MOMA.HHE. ML:1.5 0.00008635000000000001 0.16 AML other m 2019-07-18T12:55:43.28
IV.MOMA.HHN. ML:1.0 0.0000301 0.8 AML other m 2019-07-18T12:55:43.56
IV.CAMP.HHE. ML:1.0 0.00003835 0.08 AML other m 2019-07-18T12:55:50.92
IV.CAMP.HHN. ML:0.9 0.000029999999999999997 1.62 AML other m 2019-07-18T12:55:51.86
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