Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 28-08-2019 and time 01:40:22 (Italy) in region 5 km SE Norcia (PG)

A magnitude ML 1.5 earthquake occured in region: 5 km SE Norcia (PG), on

  • 27-08-2019 23:40:22 (UTC)
  • 28-08-2019 01:40:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7520, 13.1270 at 11 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.

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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 5 4957 4957
Cascia PG 10 3217 8174
Accumoli RI 12 667 8841
Arquata del Tronto AP 14 1178 10019
Cittareale RI 15 482 10501
Preci PG 16 724 11225
Castelsantangelo sul Nera MC 16 281 11506
Poggiodomo PG 16 117 11623
Monteleone di Spoleto PG 18 599 12222
Cerreto di Spoleto PG 19 1075 13297
Amatrice RI 19 2657 15954
Montegallo AP 20 523 16477

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SE of Foligno (57155 inhabitants)
45 Km E of Terni (111501 inhabitants)
48 Km W of Teramo (54892 inhabitants)
50 Km NW of L'Aquila (69753 inhabitants)
72 Km SE of Perugia (166134 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
90 Km NE of Guidonia Montecelio (88673 inhabitants)
92 Km E of Viterbo (67173 inhabitants)
92 Km NE of Tivoli (56533 inhabitants)
95 Km W of Pescara (121014 inhabitants)
96 Km W of Chieti (51815 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 1.5 2019-08-27
23:40:22		 42.7522 13.1267 11 2019-11-13
14:31:03		 Bollettino Sismico Italiano INGV 72696731
Reviewed
Rev100 		ML 1.6 2019-08-27
23:40:22		 42.7498 13.1223 11 2019-08-27
23:48:53		 Sala Sismica INGV-Roma 71859701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-27 23:40:22 ± 0.04
Latitude 42.7522 ± 0.0018
Longitude 13.1267 ± 0.0024
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 72696731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 250
Semi-minor axis of confidence ellipse (meter) 160
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 43
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 35
Number of associated phases, regardless of their use for origin computation 44
Number of defining phases 43
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.75723
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 29
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 23
Type of magnitude ML
Reference to an origin 71859701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-27 23:48:53

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 61
Type of magnitude ML
Reference to an origin 72696731
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-09-23 14:38:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VIVA.HHZ. 2019-08-27T23:40:55.00 3.0 undecidable manual S -2.53 0
IV.T0110.HHZ. 2019-08-27T23:40:36.10 0.6 undecidable manual P 137 78.6657 90 0.31 42
IV.ARVD.HHZ. 2019-08-27T23:40:36.89 0.6 undecidable manual P 350 84.0492 90 0.26 42
IV.CSP1.EHZ. 2019-08-27T23:40:35.13 0.3 undecidable manual S 10 38.2284 90 0.22 69
IV.MURB.HHZ. 2019-08-27T23:40:35.42 0.6 undecidable manual P 319 74.7696 90 0.22 43
IV.CESI.HHZ. 2019-08-27T23:40:33.59 0.3 undecidable manual S 327 33.3444 90 -0.02 71
IV.ATCC.EHZ. 2019-08-27T23:40:33.48 0.3 undecidable manual P 321 62.1933 90 0.22 66
IV.FDMO.HHZ. 2019-08-27T23:40:33.10 0.3 undecidable manual S 354 31.746 90 -0.08 71
IV.CAMP.HHZ. 2019-08-27T23:40:33.40 0.3 undecidable manual S 136 33.2445 90 -0.2 70
IV.EL6.EHZ. 2019-08-27T23:40:33.70 0.3 undecidable manual P 358 64.0914 90 0.15 67
IV.MNTT.EHZ. 2019-08-27T23:40:32.53 0.3 undecidable manual P 48 51.3153 90 0.94 53
IT.MTCL.HGZ. 2019-08-27T23:40:32.26 0.3 undecidable manual S 339 28.749 90 -0.13 70
IV.OFFI.HHZ. 2019-08-27T23:40:32.31 0.3 undecidable manual P 66 49.8168 90 0.96 53
IV.SNTG.HHZ. 2019-08-27T23:40:32.95 0.3 undecidable manual P 345 57.7977 90 0.37 65
IV.FEMA.HNZ. 2019-08-27T23:40:31.04 0.6 undecidable manual S 345 24.1536 90 -0.11 47
IV.ASSB.HHZ. 2019-08-27T23:40:31.20 0.3 undecidable manual P 310 49.8168 90 -0.15 68
IV.FIAM.HHZ. 2019-08-27T23:40:31.62 0.3 undecidable manual P 181 53.7018 90 -0.34 65
IV.RM33.EHZ. 2019-08-27T23:40:31.89 0.3 undecidable manual S 165 27.9498 90 -0.28 70
IV.GIGS.HHZ. 2019-08-27T23:40:31.07 0.3 undecidable manual P 132 49.3173 90 -0.2 68
IV.SMA1.EHZ. 2019-08-27T23:40:30.99 0.3 undecidable manual S 128 21.7671 90 0.48 66
IV.CESX.HHZ. 2019-08-27T23:40:30.49 0.6 undecidable manual P 250 46.8198 90 -0.4 43
IV.MOMA.HHZ. 2019-08-27T23:40:30.79 0.3 undecidable manual P 277 45.7209 90 0.08 70
IV.MTRA.EHZ. 2019-08-27T23:40:30.29 0.3 undecidable manual S 89 21.9669 90 -0.3 69
IV.MMO1.EHZ. 2019-08-27T23:40:30.92 0.3 undecidable manual S 45 23.0547 90 0.05 74
IV.TERO.HHZ. 2019-08-27T23:40:30.10 0.3 undecidable manual P 110 41.5251 90 0.03 71
IV.LNSS.HHZ. 2019-08-27T23:40:29.35 0.3 undecidable manual S 203 17.9709 90 -0.17 73
IV.CSP1.EHZ. 2019-08-27T23:40:29.52 0.3 undecidable manual P 10 38.2284 90 -0.04 70
IV.T1299.EHZ. 2019-08-27T23:40:29.17 0.6 undecidable manual S 136 18.2706 90 -0.41 46
IV.GAVE.EHZ. 2019-08-27T23:40:29.90 0.3 undecidable manual S 251 20.0688 90 -0.17 72
IV.FDMO.HHZ. 2019-08-27T23:40:28.52 0.1 undecidable manual P 354 31.746 90 -0.04 95
IV.CAMP.HHZ. 2019-08-27T23:40:28.62 0.1 undecidable manual P 136 33.2445 90 -0.19 93
IT.MTCL.HGZ. 2019-08-27T23:40:28.01 0.3 undecidable manual P 339 28.749 90 -0.1 71
IV.CESI.HHZ. 2019-08-27T23:40:28.74 0.1 undecidable manual P 327 33.3444 90 -0.07 94
IV.ARRO.EHZ. 2019-08-27T23:40:28.88 0.3 undecidable manual P 237 35.1426 90 -0.21 69
IV.MMO1.EHZ. 2019-08-27T23:40:27.22 0.3 undecidable manual P 45 23.0547 90 -0.01 73
IV.NRCA.HHZ. 2019-08-27T23:40:27.07 0.3 undecidable manual S 354 9.0798 125 -0.16 72
IV.RM33.EHZ. 2019-08-27T23:40:27.80 0.1 undecidable manual P 165 27.9498 90 -0.18 94
IV.SMA1.EHZ. 2019-08-27T23:40:27.06 0.1 undecidable manual P 128 21.7671 90 0.04 98
IV.MTRA.EHZ. 2019-08-27T23:40:27.09 0.3 undecidable manual P 89 21.9669 90 0.03 74
IV.FEMA.HNZ. 2019-08-27T23:40:27.62 0.3 undecidable manual P 345 24.1536 90 0.23 71
IV.T1299.EHZ. 2019-08-27T23:40:26.57 0.3 undecidable manual P 136 18.2706 90 0.09 73
IV.GAVE.EHZ. 2019-08-27T23:40:26.68 0.1 undecidable manual P 251 20.0688 90 -0.09 97
IV.LNSS.HHZ. 2019-08-27T23:40:26.36 0.1 undecidable manual P 203 17.9709 90 -0.09 98
IV.NRCA.HHZ. 2019-08-27T23:40:25.19 0.1 undecidable manual P 354 9.0798 125 0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:2.1 0.0014488335 0.1024 AML other m 2019-08-27T23:40:28.34
IV.NRCA.HHE. ML:2.2 0.0022258585 0.1024 AML other m 2019-08-27T23:40:27.20
IV.LNSS.HNE. ML:1.6 0.00033645345 0.1408 AML other m 2019-08-27T23:40:31.49
IV.LNSS.HHE. ML:1.6 0.00035271379999999994 0.0896 AML other m 2019-08-27T23:40:30.18
IV.LNSS.HNN. ML:1.7 0.00038875785 0.128 AML other m 2019-08-27T23:40:29.68
IV.LNSS.HHN. ML:1.8 0.00043853985000000007 0.1152 AML other m 2019-08-27T23:40:30.02
IV.GAVE.EHN. ML:1.8 0.0004781915 0.1536 AML other m 2019-08-27T23:40:31.07
IV.GAVE.EHE. ML:1.8 0.00052250715 0.2304 AML other m 2019-08-27T23:40:31.62
IV.GAVE.HNN. ML:1.5 0.0002413681 0.768 AML other m 2019-08-27T23:40:29.93
IV.GAVE.HNE. ML:1.8 0.00052438625 0.2304 AML other m 2019-08-27T23:40:31.62
IV.SMA1.EHE. ML:1.4 0.00018442375 0.2176 AML other m 2019-08-27T23:40:31.32
IV.SMA1.EHN. ML:1.3 0.000146453785 0.1664 AML other m 2019-08-27T23:40:32.29
IV.MTRA.EHE. ML:1.5 0.0002055922 0.1408 AML other m 2019-08-27T23:40:31.54
IV.MTRA.HNE. ML:1.5 0.00022451175 0.1408 AML other m 2019-08-27T23:40:31.54
IV.MTRA.HNN. ML:1.5 0.00019044835 0.1536 AML other m 2019-08-27T23:40:31.62
IV.MTRA.EHN. ML:1.4 0.00016151455 0.1536 AML other m 2019-08-27T23:40:31.54
IV.RM33.HNN. ML:1.6 0.00021106085 0.1152 AML other m 2019-08-27T23:40:33.08
IV.RM33.HNE. ML:1.5 0.000156837 0.1792 AML other m 2019-08-27T23:40:33.63
IV.RM33.EHN. ML:1.6 0.0002021578 0.1152 AML other m 2019-08-27T23:40:33.09
IV.RM33.EHE. ML:1.5 0.00016099459999999998 0.1792 AML other m 2019-08-27T23:40:33.64
IV.FDMO.HHE. ML:1.6 0.0001840076 0.2048 AML other m 2019-08-27T23:40:33.51
IV.FDMO.HHN. ML:1.6 0.00018527445000000002 0.2048 AML other m 2019-08-27T23:40:33.37
IV.CAMP.HHE. ML:0.8 0.000032421755 0.2688 AML other m 2019-08-27T23:40:34.34
IV.CAMP.HHN. ML:1.0 0.000046614415000000007 0.4864 AML other m 2019-08-27T23:40:34.09
IV.CESI.HHE. ML:1.4 0.00010576945 0.1792 AML other m 2019-08-27T23:40:33.89
IV.CESI.HHN. ML:1.7 0.0002124964 0.3584 AML other m 2019-08-27T23:40:34.11
IV.CESI.HNE. ML:1.6 0.00014872685 0.3456 AML other m 2019-08-27T23:40:33.73
IV.ARRO.EHE. ML:1.0 0.00004065505499999999 0.1792 AML other m 2019-08-27T23:40:35.43
IV.ARRO.EHN. ML:1.1 0.000048444185 0.1408 AML other m 2019-08-27T23:40:35.91
IV.CSP1.EHN. ML:1.4 0.00009019555 0.2432 AML other m 2019-08-27T23:40:36.43
IV.CSP1.EHE. ML:1.4 0.00009309094500000001 0.1792 AML other m 2019-08-27T23:40:37.36
IV.TERO.HHE. ML:1.3 0.000068106395 0.1152 AML other m 2019-08-27T23:40:36.76
IV.TERO.HHN. ML:1.4 0.00008733302 0.1408 AML other m 2019-08-27T23:40:37.25
IV.CESX.HHN. ML:1.0 0.000031323950000000004 0.2816 AML other m 2019-08-27T23:40:45.54
IV.CESX.HHE. ML:1.0 0.00003029473 0.1792 AML other m 2019-08-27T23:40:39.02
IV.MOMA.HNE. ML:1.5 0.000100213905 0.512 AML other m 2019-08-27T23:40:35.14
IV.MOMA.HHE. ML:1.5 0.00009304267999999999 0.2176 AML other m 2019-08-27T23:40:38.07
IV.MOMA.HHN. ML:1.3 0.000060220969999999996 0.1664 AML other m 2019-08-27T23:40:38.43
IV.GIGS.HHN. ML:0.6 0.000008884304500000001 0.1408 AML other m 2019-08-27T23:40:39.93
IV.GIGS.HHE. ML:0.6 0.000011573690000000002 0.2432 AML other m 2019-08-27T23:40:40.12
IV.ASSB.HHE. ML:1.3 0.00005010295 0.1664 AML other m 2019-08-27T23:40:40.15
IV.ASSB.HHN. ML:1.3 0.000047544724999999994 0.1408 AML other m 2019-08-27T23:40:40.01
IV.FIAM.HHE. ML:1.2 0.000036437725 0.1792 AML other m 2019-08-27T23:40:40.08
IV.FIAM.HHN. ML:1.0 0.000026946265000000004 0.2816 AML other m 2019-08-27T23:40:40.67
IV.OFFI.HHE. ML:1.6 0.000103277645 0.32 AML other m 2019-08-27T23:40:43.28
IV.OFFI.HHN. ML:1.8 0.00015517065 0.448 AML other m 2019-08-27T23:40:42.03
IV.MNTT.EHE. ML:1.7 0.0001183627 0.3328 AML other m 2019-08-27T23:40:42.73
IV.MNTT.EHN. ML:1.7 0.000122588765 0.192 AML other m 2019-08-27T23:40:45.56
IV.SNTG.HNE. ML:1.8 0.000128265175 0.7296 AML other m 2019-08-27T23:40:53.02
IV.SNTG.HHE. ML:1.0 0.00001998463 0.1024 AML other m 2019-08-27T23:40:43.67
IV.SNTG.HHN. ML:1.1 0.00002726619 0.2688 AML other m 2019-08-27T23:40:41.89
IV.ATCC.EHE. ML:1.4 0.000043099715 0.2432 AML other m 2019-08-27T23:40:43.55
IV.ATCC.EHN. ML:1.2 0.000031256095 0.4864 AML other m 2019-08-27T23:40:48.81
IV.EL6.EHN. ML:1.5 0.000055313775 0.384 AML other m 2019-08-27T23:40:44.45
IV.EL6.EHE. ML:1.4 0.00004434826 0.1664 AML other m 2019-08-27T23:40:46.18
IV.MURB.HHN. ML:1.7 0.00007848713 0.32 AML other m 2019-08-27T23:40:48.75
IV.MURB.HHE. ML:1.7 0.000076924165 0.2432 AML other m 2019-08-27T23:40:47.90
IV.T0110.HHE. ML:1.3 0.000030961435 0.3584 AML other m 2019-08-27T23:40:53.75
IV.T0110.HHN. ML:1.4 0.000034447649999999995 0.4224 AML other m 2019-08-27T23:40:50.00
IV.ARVD.HHN. ML:0.9 0.000009523906 0.2048 AML other m 2019-08-27T23:40:50.90
IV.ARVD.HHE. ML:1.1 0.000014886714999999999 0.1024 AML other m 2019-08-27T23:40:50.87
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