Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 23-09-2019 and time 17:49:41 (UTC) in region 4 km E Norcia (PG)

A magnitude ML 2.1 earthquake occured in region: 4 km E Norcia (PG), on

  • 23-09-2019 17:49:41 (UTC)
  • 23-09-2019 19:49:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7970, 13.1440 at 10 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 4 4957 4957
Castelsantangelo sul Nera MC 11 281 5238
Preci PG 13 724 5962
Arquata del Tronto AP 13 1178 7140
Cascia PG 14 3217 10357
Accumoli RI 14 667 11024
Visso MC 16 1107 12131
Montegallo AP 16 523 12654
Ussita MC 17 444 13098
Cerreto di Spoleto PG 19 1075 14173
Montemonaco AP 19 604 14777
Poggiodomo PG 19 117 14894
Cittareale RI 20 482 15376

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
48 Km W of Teramo (54892 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
71 Km E of Perugia (166134 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
95 Km E of Viterbo (67173 inhabitants)
95 Km NE of Guidonia Montecelio (88673 inhabitants)
95 Km W of Pescara (121014 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
97 Km N of Tivoli (56533 inhabitants)
97 Km NW 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 2.1 2019-09-23
17:49:41		 42.797 13.1438 10 2020-02-28
16:41:53		 Bollettino Sismico Italiano INGV 72832481
Reviewed
Rev100 		ML 2.1 2019-09-23
17:49:41		 42.796 13.1412 10 2019-09-23
17:58:41		 Sala Sismica INGV-Roma 72699361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-23 17:49:41 ± 0.04
Latitude 42.7970 ± 0.0027
Longitude 13.1438 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 72832481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 289
Semi-minor axis of confidence ellipse (meter) 201
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 81
Circular confidence region, given by single value of horizontal uncertainty (meter) 290.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 45
Number of associated phases, regardless of their use for origin computation 66
Number of defining phases 60
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.96497
Number of stations at which the event was observed 43
Number of stations from which data was used for origin computation 40
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 77
Type of magnitude ML
Reference to an origin 72832481
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-09-27 15:45:32

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 61
Type of magnitude ML
Reference to an origin 72699361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-23 17:58:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LPEL.HHZ. 2019-09-23T17:50:15.31 3.0 undecidable manual S -3.28 0
IV.MPAG.EHZ. 2019-09-23T17:50:12.50 3.0 undecidable manual S 342 97.4247 50 1.81 0
IV.PIEI.HHZ. 2019-09-23T17:50:11.70 3.0 undecidable manual S 329 95.6376 50 1.49 0
IV.ARVD.HHZ. 2019-09-23T17:50:06.99 3.0 undecidable manual S -0.48 0
IV.SSFR.HHZ. 2019-09-23T17:50:06.10 1.0 undecidable manual S 338 76.7676 50 0.94 17
IV.ATCC.EHZ. 2019-09-23T17:50:01.20 0.6 undecidable manual S 317 59.3961 50 0.66 39
IV.EL6.EHZ. 2019-09-23T17:50:01.00 0.6 undecidable manual S 357 59.0964 50 0.53 42
IV.INTR.HHE. 2019-09-23T17:50:00.58 1.0 undecidable manual P 144 107.115 50 0.53 19
IV.SNTG.HHZ. 2019-09-23T17:49:59.10 0.6 undecidable manual S 342 53.4021 50 0.16 46
IV.PIEI.HHZ. 2019-09-23T17:49:58.68 0.6 undecidable manual P 329 95.6376 50 0.41 40
IV.MPAG.EHZ. 2019-09-23T17:49:58.74 1.0 undecidable manual P 342 97.4247 50 0.19 21
IV.CESX.HHZ. 2019-09-23T17:49:58.60 3.0 undecidable manual S 245 50.0166 50 0.57 0
IV.ATTE.HHN. 2019-09-23T17:49:57.80 3.0 undecidable manual P 78.0663 2.24 0
IV.CERT.HHE. 2019-09-23T17:49:57.88 1.0 undecidable manual P 188 95.0382 50 -0.3 20
IV.SAP2.EHZ. 2019-09-23T17:49:56.00 1.0 undecidable manual S 32 39.1275 50 0.86 19
IV.T0110.HHZ. 2019-09-23T17:49:56.33 0.3 undecidable manual P 140 81.4518 50 0.23 64
IV.SSFR.HHZ. 2019-09-23T17:49:55.52 0.6 undecidable manual P 338 76.7676 50 0.16 44
IV.ARRO.EHZ. 2019-09-23T17:49:55.50 0.3 undecidable manual S 232 39.2274 50 0.35 67
IV.ATFO.HHZ. 2019-09-23T17:49:55.73 1.0 undecidable manual P 324 78.366 50 0.12 22
IV.TERO.HHZ. 2019-09-23T17:49:55.60 0.6 undecidable manual S 117 42.2244 50 -0.35 45
IV.MML1.HNE. 2019-09-23T17:49:54.50 1.0 undecidable manual S 338 37.8288 50 -0.27 23
IV.MURB.HHZ. 2019-09-23T17:49:54.73 0.3 undecidable manual P 316 72.0723 50 0.09 67
IV.PF6.EHN. 2019-09-23T17:49:54.40 0.3 undecidable manual S 6 38.0286 50 -0.44 66
IV.VCEL.EHN. 2019-09-23T17:49:54.97 0.3 undecidable manual P 128 72.2721 50 0.29 64
IV.GUMA.HHZ. 2019-09-23T17:49:53.90 0.6 undecidable manual S 28 33.3444 50 0.32 46
IV.CSP1.EHZ. 2019-09-23T17:49:53.10 0.6 undecidable manual S 9 33.0447 50 -0.41 45
IV.FOSV.HNE. 2019-09-23T17:49:53.22 1.0 undecidable manual P 331 63.3921 50 -0.08 23
IV.ATCC.EHZ. 2019-09-23T17:49:52.67 0.1 undecidable manual P 317 59.3961 50 -0.01 93
IV.EL6.EHZ. 2019-09-23T17:49:52.58 0.1 undecidable manual P 357 59.0964 50 -0.07 92
IV.CESI.HHZ. 2019-09-23T17:49:52.40 0.3 undecidable manual S 320 30.1476 50 -0.34 69
IV.FIAM.HHZ. 2019-09-23T17:49:52.38 0.1 undecidable manual P 182 58.6968 50 -0.21 89
IV.SNTG.HHZ. 2019-09-23T17:49:51.64 0.3 undecidable manual P 342 53.4021 50 -0.13 69
IV.GIGS.HHZ. 2019-09-23T17:49:51.08 0.1 undecidable manual P 137 51.8037 50 -0.44 86
IV.OFFI.HHZ. 2019-09-23T17:49:51.39 0.6 undecidable manual P 71 46.62 50 0.67 40
IV.FDMO.HHZ. 2019-09-23T17:49:51.30 1.0 undecidable manual S 350 26.9508 50 -0.58 22
IV.MNTT.EHZ. 2019-09-23T17:49:51.02 0.6 undecidable manual P 51 47.0196 50 0.24 45
IV.GAVE.EHZ. 2019-09-23T17:49:50.90 0.3 undecidable manual S 240 23.4543 113 0.11 73
IV.T1299.EHE. 2019-09-23T17:49:50.50 0.6 undecidable manual S 148 21.2676 115 0.39 46
IV.MOMA.HHZ. 2019-09-23T17:49:50.83 0.3 undecidable manual P 271 46.7199 50 0.09 70
IV.CESX.HHZ. 2019-09-23T17:49:50.91 0.3 undecidable manual P 245 50.0166 50 -0.33 66
IV.ARRO.EHZ. 2019-09-23T17:49:49.51 0.1 positive manual P 232 39.2274 50 -0.06 96
IV.FEMA.HNE. 2019-09-23T17:49:49.40 1.0 undecidable manual S 337 19.869 116 -0.26 24
IV.SAP2.EHZ. 2019-09-23T17:49:49.89 0.1 undecidable manual P 32 39.1275 50 0.32 91
IV.MML1.HNE. 2019-09-23T17:49:49.28 0.1 undecidable manual P 338 37.8288 50 -0.08 95
IV.MMO1.EHZ. 2019-09-23T17:49:49.10 0.3 undecidable manual S 53 18.6702 118 -0.21 72
IV.PF6.EHN. 2019-09-23T17:49:49.14 0.1 positive manual P 6 38.0286 50 -0.26 92
IV.TERO.HHZ. 2019-09-23T17:49:49.75 0.6 undecidable manual P 117 42.2244 50 -0.29 45
IV.MTRA.HNZ. 2019-09-23T17:49:49.80 0.3 undecidable manual S 102 21.0678 115 -0.23 71
IV.CSP1.EHZ. 2019-09-23T17:49:48.50 0.1 positive manual P 9 33.0447 50 -0.13 95
IV.CESI.HHZ. 2019-09-23T17:49:48.05 0.1 undecidable manual P 320 30.1476 50 -0.13 96
IV.RM33.EHZ. 2019-09-23T17:49:48.36 0.1 undecidable manual P 170 32.4453 50 -0.18 94
IV.CAMP.HHZ. 2019-09-23T17:49:48.91 0.3 undecidable manual P -0.16 71
IV.GUMA.HHZ. 2019-09-23T17:49:48.81 0.1 positive manual P 28 33.3444 50 0.14 95
IV.MF5.EHZ. 2019-09-23T17:49:48.90 0.1 positive manual P 50 33.2445 50 0.24 93
IT.MTCL.HGZ. 2019-09-23T17:49:47.10 0.6 undecidable manual P -0.2 48
IV.FDMO.HHZ. 2019-09-23T17:49:47.43 0.1 positive manual P 350 26.9508 50 -0.26 94
IV.GAVE.EHZ. 2019-09-23T17:49:47.09 0.1 undecidable manual P 240 23.4543 113 0.03 99
IV.SMA1.EHZ. 2019-09-23T17:49:47.20 0.1 undecidable manual P 140 24.1536 112 0 99
IV.MC2.EHZ. 2019-09-23T17:49:47.90 0.3 undecidable manual S 16 13.1757 127 0.21 73
IV.T1299.EHE. 2019-09-23T17:49:46.95 0.1 undecidable manual P 148 21.2676 115 0.28 94
IV.MMO1.EHZ. 2019-09-23T17:49:46.16 0.1 positive manual P 53 18.6702 118 -0.05 99
IV.MTRA.HNZ. 2019-09-23T17:49:46.56 0.1 undecidable manual P 102 21.0678 115 -0.07 99
IV.FEMA.HNE. 2019-09-23T17:49:46.41 0.1 undecidable manual P 337 19.869 116 0 100
IV.MC2.EHZ. 2019-09-23T17:49:45.49 0.1 undecidable manual P 16 13.1757 127 0.22 97
IV.NRCA.HNZ. 2019-09-23T17:49:45.50 0.1 undecidable manual S 329 4.6953 155 -0.26 97
IV.NRCA.HNZ. 2019-09-23T17:49:44.30 0.1 undecidable manual P 329 4.6953 155 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:2.9 0.0127012 0.1408 AML other m 2019-09-23T17:49:45.63
IV.NRCA.HHN. ML:2.9 0.014821255 0.1408 AML other m 2019-09-23T17:49:45.56
IV.NRCA.HNE. ML:2.9 0.01265859 0.0768 AML other m 2019-09-23T17:49:45.68
IV.NRCA.HHE. ML:2.9 0.012529035 0.0768 AML other m 2019-09-23T17:49:45.68
IV.MTRA.EHE. ML:2.3 0.0013272944999999999 0.192 AML other m 2019-09-23T17:49:50.55
IV.MTRA.HNE. ML:2.3 0.001341087 0.1792 AML other m 2019-09-23T17:49:50.55
IV.MTRA.HNN. ML:2.2 0.001283061 0.2304 AML other m 2019-09-23T17:49:50.71
IV.MTRA.EHN. ML:2.2 0.0012820624999999998 0.2304 AML other m 2019-09-23T17:49:50.71
IV.GAVE.HNN. ML:2.1 0.0007965716499999999 0.1664 AML other m 2019-09-23T17:49:51.55
IV.GAVE.EHN. ML:2.6 0.0025150715000000004 0.1536 AML other m 2019-09-23T17:49:51.55
IV.GAVE.HNE. ML:2.5 0.002130633 0.1536 AML other m 2019-09-23T17:49:51.65
IV.GAVE.EHE. ML:2.6 0.002367236 0.1664 AML other m 2019-09-23T17:49:51.66
IV.FDMO.HHN. ML:2.1 0.0007780623500000001 0.2304 AML other m 2019-09-23T17:49:52.12
IV.FDMO.HHE. ML:2.1 0.00066160515 0.1792 AML other m 2019-09-23T17:49:52.01
IV.CESI.HNN. ML:2.4 0.0012210524999999998 0.1152 AML other m 2019-09-23T17:49:52.59
IV.CESI.HHN. ML:2.4 0.0011201725 0.1024 AML other m 2019-09-23T17:49:52.60
IV.CESI.HNE. ML:2.2 0.0008491332 0.1152 AML other m 2019-09-23T17:49:52.63
IV.CESI.HHE. ML:2.2 0.0008397245999999999 0.1152 AML other m 2019-09-23T17:49:52.63
IV.CSP1.EHE. ML:2.2 0.00070531095 0.2944 AML other m 2019-09-23T17:49:53.59
IV.CSP1.EHN. ML:2.3 0.0009065073500000001 0.3584 AML other m 2019-09-23T17:49:53.48
IV.RM33.EHE. ML:1.9 0.00034945735 0.1152 AML other m 2019-09-23T17:49:54.16
IV.CAMP.HHE. ML:1.4 0.000104097425 0.32 AML other m 2019-09-23T17:49:54.39
IV.RM33.HNE. ML:1.9 0.00036741555 0.1664 AML other m 2019-09-23T17:49:54.53
IV.SMA1.EHE. ML:2.1 0.0008387324 0.2944 AML other m 2019-09-23T17:49:54.60
IV.GUMA.HNN. ML:2.5 0.0012917326499999999 0.3328 AML other m 2019-09-23T17:49:54.62
IV.RM33.HNN. ML:1.8 0.00031372485 0.2048 AML other m 2019-09-23T17:49:54.77
IV.RM33.EHN. ML:1.9 0.00032742645 0.192 AML other m 2019-09-23T17:49:54.68
IV.GUMA.HHE. ML:2.5 0.001431238 0.3712 AML other m 2019-09-23T17:49:54.65
IV.GUMA.HHN. ML:2.4 0.00111492475 0.3456 AML other m 2019-09-23T17:49:55.17
IV.SMA1.EHN. ML:2.1 0.0007415361499999999 0.256 AML other m 2019-09-23T17:49:55.19
IV.CAMP.HHN. ML:1.5 0.00012139429999999999 0.2432 AML other m 2019-09-23T17:49:55.35
IV.TERO.HHN. ML:2.1 0.00038475955 0.0896 AML other m 2019-09-23T17:49:56.27
IV.TERO.HNN. ML:1.8 0.00019871375 0.0768 AML other m 2019-09-23T17:49:56.39
IV.TERO.HHE. ML:2.1 0.00043381124999999996 0.1024 AML other m 2019-09-23T17:49:56.43
IV.GUMA.HNE. ML:2.3 0.00083769605 0.2688 AML other m 2019-09-23T17:49:56.46
IV.SAP2.EHN. ML:3.0 0.0033981385 0.1536 AML other m 2019-09-23T17:49:56.67
IV.SAP2.EHE. ML:2.2 0.0005180698000000001 0.128 AML other m 2019-09-23T17:49:57.13
IV.ARRO.EHN. ML:1.8 0.00022633345 0.2432 AML other m 2019-09-23T17:49:57.03
IV.MOMA.HHN. ML:1.9 0.0002079114 0.1792 AML other m 2019-09-23T17:49:58.21
IV.ARRO.EHE. ML:1.8 0.00022965345 0.2048 AML other m 2019-09-23T17:49:58.16
IV.MOMA.HNE. ML:2.2 0.000501383 0.1792 AML other m 2019-09-23T17:49:58.57
IV.MOMA.HHE. ML:2.3 0.0005579749499999999 0.1792 AML other m 2019-09-23T17:49:58.66
IV.MF5.EHE. ML:2.0 0.00041832250000000006 1.4112 AML other m 2019-09-23T17:49:58.10
IV.GIGS.HHE. ML:1.2 0.00003782368 0.0768 AML other m 2019-09-23T17:49:59.28
IV.SNTG.HNE. ML:2.0 0.00025655025 0.1152 AML other m 2019-09-23T17:49:59.46
IV.SNTG.HHE. ML:2.0 0.00024623235 0.1152 AML other m 2019-09-23T17:49:59.46
IV.SNTG.HHN. ML:2.0 0.00021653085 0.0896 AML other m 2019-09-23T17:49:59.47
IV.MF5.EHN. ML:1.9 0.0003147618 0.3968 AML other m 2019-09-23T17:50:00.00
IV.MNTT.EHN. ML:2.2 0.00047411314999999996 0.2304 AML other m 2019-09-23T17:50:00.60
IV.OFFI.HHE. ML:2.0 0.00028936235 0.2176 AML other m 2019-09-23T17:50:01.33
IV.ATCC.EHN. ML:1.8 0.0001391624 0.2304 AML other m 2019-09-23T17:50:01.38
IV.EL6.EHN. ML:2.5 0.0006340479 0.1536 AML other m 2019-09-23T17:50:01.76
IV.MNTT.EHE. ML:2.2 0.00047402955 0.2304 AML other m 2019-09-23T17:50:01.89
IV.GIGS.HHN. ML:1.1 0.00003198257 0.1152 AML other m 2019-09-23T17:50:01.89
IV.ATCC.EHE. ML:1.9 0.0001542633 0.1024 AML other m 2019-09-23T17:50:02.03
IV.EL6.EHE. ML:2.3 0.00041750779999999996 0.1408 AML other m 2019-09-23T17:50:02.54
IV.FIAM.HNN. ML:1.8 0.00013007873 0.4352 AML other m 2019-09-23T17:50:03.60
IV.SNTG.HNN. ML:2.0 0.0002155213 1.04 AML other m 2019-09-23T17:50:04.56
IV.FIAM.HHN. ML:1.4 0.00004964994 0.3712 AML other m 2019-09-23T17:50:04.86
IV.FIAM.HNE. ML:2.8 0.00133796034 0.4896 AML other m 2019-09-23T17:50:05.49
IV.FIAM.HHE. ML:1.3 0.00003783908 0.32 AML other m 2019-09-23T17:50:06.69
IV.SSFR.HNE. ML:2.2 0.00022941754999999996 0.1792 AML other m 2019-09-23T17:50:06.72
IV.SSFR.HNN. ML:2.4 0.0003354545 0.1024 AML other m 2019-09-23T17:50:07.51
IV.SSFR.HHN. ML:2.3 0.00030969475000000005 0.1408 AML other m 2019-09-23T17:50:07.76
IV.ATFO.HHN. ML:1.7 0.00007229924 1.7056 AML other m 2019-09-23T17:50:08.92
IV.ATFO.HHE. ML:1.8 0.000078015095 0.1664 AML other m 2019-09-23T17:50:08.01
IV.MURB.HHN. ML:2.2 0.0002267009 0.2048 AML other m 2019-09-23T17:50:08.47
IV.MURB.HNN. ML:2.2 0.00024343145 0.2176 AML other m 2019-09-23T17:50:08.48
IV.T0110.HHE. ML:1.6 0.00006173194 0.3584 AML other m 2019-09-23T17:50:08.69
IV.MURB.HHE. ML:2.2 0.00023536970000000002 0.2048 AML other m 2019-09-23T17:50:08.79
IV.MURB.HNE. ML:2.1 0.0001988068 0.2176 AML other m 2019-09-23T17:50:08.70
IV.SSFR.HHE. ML:2.2 0.00023652095000000002 0.128 AML other m 2019-09-23T17:50:09.34
IV.MPAG.EHE. ML:1.9 0.00007833782000000001 0.2176 AML other m 2019-09-23T17:50:13.27
IV.MPAG.EHN. ML:1.8 0.000064756305 0.256 AML other m 2019-09-23T17:50:13.25
IV.PIEI.HHE. ML:1.6 0.00004517345000000001 0.2304 AML other m 2019-09-23T17:50:16.08
IV.PIEI.HHN. ML:1.4 0.000025750019999999997 0.2048 AML other m 2019-09-23T17:50:16.61
IV.T0110.HHN. ML:1.7 0.000069785815 1.3728 AML other m 2019-09-23T17:50:17.78
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download