Earthquake with magnitude of ML 1.8 on date 11-08-2019 and time 20:27:59 (Italy) in region 8 km E Norcia (PG)

A magnitude ML 1.8 earthquake occured in region: 8 km E Norcia (PG), on

  • 11-08-2019 18:27:59 (UTC)
  • 11-08-2019 20:27:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.78, 13.19 at 9 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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 8 4957 4957
Arquata del Tronto AP 9 1178 6135
Accumoli RI 10 667 6802
Castelsantangelo sul Nera MC 13 281 7083
Montegallo AP 14 523 7606
Cascia PG 16 3217 10823
Preci PG 17 724 11547
Montemonaco AP 18 604 12151
Acquasanta Terme AP 18 2916 15067
Cittareale RI 18 482 15549
Amatrice RI 18 2657 18206
Visso MC 19 1107 19313
Ussita MC 19 444 19757

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Teramo (54892 inhabitants)
44 Km E of Foligno (57155 inhabitants)
51 Km NW of L'Aquila (69753 inhabitants)
51 Km E of Terni (111501 inhabitants)
75 Km E of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
91 Km W of Pescara (121014 inhabitants)
93 Km NW of Chieti (51815 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
96 Km NE of Tivoli (56533 inhabitants)
97 Km S of Ancona (100861 inhabitants)
97 Km E of Viterbo (67173 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
Bulletin
Rev1000
ML 1.8 2019-08-11
18:27:59
42.78 13.19 9 2019-11-13
14:31:06
Bollettino Sismico Italiano INGV 73248121
Reviewed
Rev100
ML 1.7 2019-08-11
18:27:59
42.78 13.19 9 2019-08-11
18:34:45
Sala Sismica INGV-Roma 71387271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-11 18:27:59 ± 0.06
Latitude 42.78 ± 0.00
Longitude 13.19 ± 0.00
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 73248121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 417
Semi-minor axis of confidence ellipse (meter) 196
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 70
Circular confidence region, given by single value of horizontal uncertainty (meter) 420
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 55
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 43
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) 0.07734
Epicentral distance of station farthest from the epicenter (degree) 0.90562
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 40
Type of magnitude ML
Reference to an origin 71387271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-11 18:34:45

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 73248121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-10-14 10:26:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FIAM.HHZ. 2019-08-11T18:28:18.57 0.3 undecidable manual S 186 0.5135 50 0.68 58
IV.SNTG.HHZ. 2019-08-11T18:28:18.40 0.6 undecidable manual S 339 0.509 50 0.63 40
IV.MOMA.HHZ. 2019-08-11T18:28:17.06 0.6 undecidable manual S 273 0.4551 50 0.9 36
IV.MPAG.EHZ. 2019-08-11T18:28:17.36 0.6 undecidable manual P 340 0.9056 50 0.4 39
IV.ASSB.HHZ. 2019-08-11T18:28:16.88 0.3 undecidable manual S 304 0.4694 50 0.29 66
IV.VCEL.EHZ. 2019-08-11T18:28:12.31 0.3 undecidable manual P 129 0.6142 50 0.34 63
IV.TERO.HHZ. 2019-08-11T18:28:12.37 0.3 undecidable manual S 117 0.3417 50 -0.43 66
IV.MF5.EHZ. 2019-08-11T18:28:11.86 0.3 undecidable manual S 43 0.2878 50 0.67 61
IV.GUMA.HHZ. 2019-08-11T18:28:11.97 0.6 undecidable manual S 21 0.3031 50 0.32 45
IV.CESI.HHZ. 2019-08-11T18:28:11.73 0.3 undecidable manual S 317 0.3076 50 -0.06 71
IV.RM33.EHZ. 2019-08-11T18:28:10.62 0.6 undecidable manual S 176 0.2707 50 -0.07 48
IV.FIAM.HHZ. 2019-08-11T18:28:10.13 0.3 undecidable manual P 186 0.5135 50 -0.12 68
IV.SNTG.HHZ. 2019-08-11T18:28:10.04 0.3 undecidable manual P 339 0.509 50 -0.14 67
IV.EL6.EHZ. 2019-08-11T18:28:10.95 0.3 undecidable manual P 353 0.554 50 0.01 69
IV.ASSB.HHZ. 2019-08-11T18:28:09.30 0.1 positive manual P 304 0.4694 50 -0.2 89
IV.MOMA.HHZ. 2019-08-11T18:28:09.39 0.3 undecidable manual P 273 0.4551 50 0.14 68
IV.GIGS.HHZ. 2019-08-11T18:28:08.55 0.3 undecidable manual P 139 0.4308 50 -0.29 66
IV.T1299.HNZ. 2019-08-11T18:28:07.28 0.6 undecidable manual S 155 0.1601 118 0.51 44
IV.MML1.HNE. 2019-08-11T18:28:07.63 0.3 undecidable manual P 335 0.3705 50 -0.17 69
IV.ARRO.EHZ. 2019-08-11T18:28:07.87 0.3 undecidable manual P 237 0.3705 50 0.07 70
IV.PF6.EHN. 2019-08-11T18:28:07.23 0.3 undecidable manual P 1 0.3588 50 -0.38 66
IV.SMA1.EHZ. 2019-08-11T18:28:07.59 0.3 undecidable manual S 144 0.1826 115 0.03 74
IV.MTRA.EHZ. 2019-08-11T18:28:06.91 0.3 undecidable manual S 98 0.1529 119 0.36 69
IV.TERO.HHZ. 2019-08-11T18:28:06.84 0.3 undecidable manual P 117 0.3417 50 -0.47 65
IV.MMO1.EHZ. 2019-08-11T18:28:06.43 0.3 undecidable manual S 40 0.1565 118 -0.23 71
IV.CESI.HHZ. 2019-08-11T18:28:06.40 0.3 undecidable manual P 317 0.3076 50 -0.33 67
IV.MF5.EHZ. 2019-08-11T18:28:06.64 0.6 undecidable manual P 43 0.2878 50 0.26 46
IV.CSP1.EHZ. 2019-08-11T18:28:06.54 0.1 undecidable manual P 2 0.313 50 -0.28 91
IV.MC2.EHZ. 2019-08-11T18:28:06.47 0.3 undecidable manual S 360 0.1322 122 0.62 64
IV.GUMA.HHZ. 2019-08-11T18:28:06.68 0.1 undecidable manual P 21 0.3031 50 0.03 96
IV.CAMP.HHE. 2019-08-11T18:28:06.06 0.3 undecidable manual P 146 0.2914 50 -0.39 67
IT.MTCL.HGZ. 2019-08-11T18:28:05.43 0.3 undecidable manual P 327 0.2563 108 -0.38 67
IV.RM33.EHZ. 2019-08-11T18:28:05.84 0.1 undecidable manual P 176 0.2707 50 -0.25 92
IV.GAVE.HNZ. 2019-08-11T18:28:05.20 0.6 undecidable manual P 248 0.2338 110 -0.14 47
IV.FDMO.HHZ. 2019-08-11T18:28:05.67 0.3 undecidable manual P 344 0.268 50 -0.38 67
IV.LNSS.HHZ. 2019-08-11T18:28:04.82 0.1 undecidable manual P 212 0.2077 112 0.02 98
IV.T1299.HNZ. 2019-08-11T18:28:04.08 0.1 undecidable manual P 155 0.1601 118 0.25 94
IV.SMA1.EHZ. 2019-08-11T18:28:04.28 0.1 negative manual P 144 0.1826 115 -0.01 98
IV.MC2.EHZ. 2019-08-11T18:28:03.44 0.1 undecidable manual P 360 0.1322 122 0.14 97
IV.MTRA.EHZ. 2019-08-11T18:28:03.59 0.3 undecidable manual P 98 0.1529 119 -0.11 73
IV.NRCA.HNZ. 2019-08-11T18:28:03.82 0.6 undecidable manual S 315 0.0773 137 -0.4 46
IV.MMO1.EHZ. 2019-08-11T18:28:03.68 0.1 positive manual P 40 0.1565 118 -0.09 97
IV.NRCA.HNZ. 2019-08-11T18:28:02.33 0.1 positive manual P 315 0.0773 137 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:2.9 0.01218345 0.128 AML other m 2019-08-11T18:28:04.25
IV.NRCA.HNN. ML:2.5 0.0048849185 0.1024 AML other m 2019-08-11T18:28:04.77
IV.NRCA.HHN. ML:2.6 0.005557805 0.1024 AML other m 2019-08-11T18:28:04.72
IV.NRCA.HHE. ML:3 0.013194195 0.1152 AML other m 2019-08-11T18:28:04.24
IV.MTRA.EHE. ML:1.9 0.00068384385 0.3712 AML other m 2019-08-11T18:28:08.46
IV.MTRA.EHN. ML:2 0.000896893 0.3968 AML other m 2019-08-11T18:28:07.03
IV.MTRA.HNE. ML:1.9 0.0006681672 0.5248 AML other m 2019-08-11T18:28:08.45
IV.MTRA.HNN. ML:2 0.0009067673 0.3968 AML other m 2019-08-11T18:28:07.02
IV.SMA1.EHE. ML:1.8 0.00042829495 0.2688 AML other m 2019-08-11T18:28:10.11
IV.SMA1.EHN. ML:1.8 0.0005017213 0.2304 AML other m 2019-08-11T18:28:07.78
IV.LNSS.HNE. ML:1.6 0.00026530654 0.1664 AML other m 2019-08-11T18:28:10.23
IV.LNSS.HHE. ML:1.6 0.0002872448 0.1664 AML other m 2019-08-11T18:28:10.23
IV.LNSS.HNN. ML:1.8 0.000396864605 0.3712 AML other m 2019-08-11T18:28:12.79
IV.LNSS.HHN. ML:1.7 0.00035278325 0.3584 AML other m 2019-08-11T18:28:12.78
IV.FDMO.HHE. ML:1.6 0.00019524625 0.192 AML other m 2019-08-11T18:28:12.28
IV.FDMO.HHN. ML:1.7 0.0002321565 0.192 AML other m 2019-08-11T18:28:12.77
IV.RM33.HNE. ML:1.8 0.0003181177 0.1408 AML other m 2019-08-11T18:28:11.86
IV.RM33.EHE. ML:1.8 0.0002929466 0.1408 AML other m 2019-08-11T18:28:11.87
IV.RM33.EHN. ML:1.6 0.00021333495 0.1536 AML other m 2019-08-11T18:28:11.89
IV.RM33.HNN. ML:1.7 0.00025134685 0.1664 AML other m 2019-08-11T18:28:11.81
IV.CESI.HNE. ML:1.6 0.0001723376 0.2176 AML other m 2019-08-11T18:28:13.89
IV.CESI.HNN. ML:1.9 0.00033064545 0.2944 AML other m 2019-08-11T18:28:11.92
IV.CESI.HHE. ML:1.6 0.0001752826 0.1792 AML other m 2019-08-11T18:28:12.00
IV.CESI.HHN. ML:1.9 0.0003224944 0.2432 AML other m 2019-08-11T18:28:12.06
IV.MF5.EHN. ML:1.8 0.00026902845 0.4352 AML other m 2019-08-11T18:28:12.29
IV.MF5.EHE. ML:1.7 0.00020951505 0.3072 AML other m 2019-08-11T18:28:12.47
IV.GUMA.HNE. ML:2.1 0.00054355045 0.2304 AML other m 2019-08-11T18:28:13.75
IV.GUMA.HNN. ML:2.8 0.00241605625 1.3952 AML other m 2019-08-11T18:28:15.87
IV.GUMA.HHE. ML:2.3 0.0007994258 0.2304 AML other m 2019-08-11T18:28:13.64
IV.GUMA.HHN. ML:2 0.0004006769 0.2432 AML other m 2019-08-11T18:28:14.47
IV.TERO.HHN. ML:1.6 0.00014456135 0.1536 AML other m 2019-08-11T18:28:14.50
IV.TERO.HNN. ML:1.3 8.0965085E-5 0.2304 AML other m 2019-08-11T18:28:14.87
IV.TERO.HHE. ML:1.5 0.000121683435 0.128 AML other m 2019-08-11T18:28:12.99
IV.TERO.HNE. ML:2 0.00040877885 1.1136 AML other m 2019-08-11T18:28:12.32
IV.ARRO.EHN. ML:1.3 6.834645E-5 0.2048 AML other m 2019-08-11T18:28:14.79
IV.ARRO.EHE. ML:1.4 7.273092E-5 0.192 AML other m 2019-08-11T18:28:16.26
IV.GIGS.HHE. ML:1 2.26899E-5 0.2048 AML other m 2019-08-11T18:28:16.10
IV.GIGS.HHN. ML:1 2.268161E-5 0.2048 AML other m 2019-08-11T18:28:17.16
IV.ASSB.HHN. ML:1.6 0.000102576795 0.1024 AML other m 2019-08-11T18:28:18.42
IV.ASSB.HHE. ML:1.8 0.0001409651 0.1408 AML other m 2019-08-11T18:28:17.46
IV.MOMA.HHN. ML:1.8 0.0001460401 0.1536 AML other m 2019-08-11T18:28:18.55
IV.MOMA.HNE. ML:1.9 0.000190262765 0.1792 AML other m 2019-08-11T18:28:19.64
IV.MOMA.HHE. ML:1.9 0.0002046496 0.1792 AML other m 2019-08-11T18:28:19.64
IV.SNTG.HNN. ML:2 0.0002278776 1.0496 AML other m 2019-08-11T18:28:19.51
IV.SNTG.HHE. ML:1.4 4.9118395E-5 0.1024 AML other m 2019-08-11T18:28:19.69
IV.SNTG.HHN. ML:1.4 5.5862365E-5 0.1792 AML other m 2019-08-11T18:28:18.94
IV.SNTG.HNE. ML:1.7 0.0001179564 0.576 AML other m 2019-08-11T18:28:22.09
IV.FIAM.HNN. ML:1.8 0.00014389 2.4576 AML other m 2019-08-11T18:28:19.34
IV.FIAM.HHN. ML:1 2.1254295E-5 0.4736 AML other m 2019-08-11T18:28:23.23
IV.FIAM.HHE. ML:1 2.5897045E-5 0.1664 AML other m 2019-08-11T18:28:19.26
IV.EL6.EHE. ML:1.7 0.000106552895 0.2816 AML other m 2019-08-11T18:28:22.05
IV.EL6.EHN. ML:1.8 0.000118169855 0.256 AML other m 2019-08-11T18:28:24.51
IV.VCEL.EHN. ML:1.6 7.581731E-5 0.5248 AML other m 2019-08-11T18:28:25.96
IV.VCEL.EHE. ML:1.6 7.084445E-5 0.32 AML other m 2019-08-11T18:28:24.70
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