Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 24-09-2019 and time 13:21:21 (Italy) in region 5 km N Norcia (PG)

A magnitude ML 1.1 earthquake occured in region: 5 km N Norcia (PG), on

  • 24-09-2019 11:21:21 (UTC)
  • 24-09-2019 13:21:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8380, 13.0870 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 5 4957 4957
Preci PG 6 724 5681
Castelsantangelo sul Nera MC 8 281 5962
Visso MC 10 1107 7069
Ussita MC 13 444 7513
Cerreto di Spoleto PG 14 1075 8588
Sellano PG 14 1079 9667
Cascia PG 15 3217 12884
Arquata del Tronto AP 19 1178 14062
Monte Cavallo MC 19 145 14207
Poggiodomo PG 19 117 14324
Vallo di Nera PG 20 364 14688

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
54 Km W of Teramo (54892 inhabitants)
60 Km NW of L'Aquila (69753 inhabitants)
64 Km E of Perugia (166134 inhabitants)
93 Km NE of Viterbo (67173 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km N of Tivoli (56533 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 1.1 2019-09-24
11:21:21		 42.8383 13.0873 10 2019-09-24
11:28:56		 Sala Sismica INGV-Roma 72723251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-24 11:21:21 ± 0.04
Latitude 42.8383 ± 0.0027
Longitude 13.0873 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72723251

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 266
Semi-minor axis of confidence ellipse (meter) 259
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 49
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 58
Number of associated phases, regardless of their use for origin computation 37
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.52520
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 24
Type of magnitude ML
Reference to an origin 72723251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-24 11:28:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RMP.HHZ. 2019-09-24T11:21:41.43 3.0 positive manual P -0.24 0
IV.EL6.EHZ. 2019-09-24T11:21:39.16 0.3 undecidable manual S 1 54.501 50 0.42 65
IV.GIGS.HHZ. 2019-09-24T11:21:39.84 0.6 undecidable manual S 137 58.2972 50 0.09 46
IV.TERO.HHZ. 2019-09-24T11:21:37.09 0.3 undecidable manual S 119 48.4182 50 -0.03 71
IV.ARRO.EHZ. 2019-09-24T11:21:35.00 0.3 undecidable manual S 222 38.9277 50 0.41 67
IV.MOMA.HHZ. 2019-09-24T11:21:35.85 0.3 undecidable manual S 265 42.2244 50 0.37 67
IV.RM33.EHZ. 2019-09-24T11:21:34.41 0.3 undecidable manual S 164 37.9287 50 0.07 72
IV.GUMA.HHZ. 2019-09-24T11:21:33.08 0.3 undecidable manual S 39 32.0457 50 0.33 69
IV.MF5.EHZ. 2019-09-24T11:21:33.84 0.3 undecidable manual S 61 34.5432 50 0.43 67
IV.SMA1.EHZ. 2019-09-24T11:21:32.14 0.6 undecidable manual S 139 30.6471 50 -0.24 47
IV.MTRA.EHZ. 2019-09-24T11:21:31.20 0.3 undecidable manual S 110 26.751 50 -0.14 73
IV.CSP1.EHZ. 2019-09-24T11:21:31.93 0.3 undecidable manual S 19 29.6481 50 -0.2 71
IV.EL6.EHZ. 2019-09-24T11:21:31.16 0.1 undecidable manual P 1 54.501 50 -0.3 89
IV.GIGS.HHZ. 2019-09-24T11:21:31.84 0.1 undecidable manual P 137 58.2972 50 -0.2 90
IV.TERO.HHZ. 2019-09-24T11:21:30.22 0.1 undecidable manual P 119 48.4182 50 -0.31 90
IV.GAVE.EHZ. 2019-09-24T11:21:30.08 0.3 undecidable manual S 224 22.5552 114 0 75
IV.CESI.HHZ. 2019-09-24T11:21:30.20 0.3 undecidable manual S 321 23.6541 113 -0.24 72
IV.FDMO.HHZ. 2019-09-24T11:21:29.73 0.3 undecidable manual S 360 21.9669 114 -0.16 73
IV.MMO1.HNZ. 2019-09-24T11:21:29.24 0.6 undecidable manual S 71 20.6682 116 -0.22 48
IV.MOMA.HHZ. 2019-09-24T11:21:29.65 0.1 undecidable manual P 265 42.2244 50 0.07 96
IV.MF5.EHZ. 2019-09-24T11:21:28.55 0.1 undecidable manual P 61 34.5432 50 0.17 95
IT.MTCL.HGZ. 2019-09-24T11:21:28.57 0.3 undecidable manual S 338 18.6702 118 -0.29 71
IV.RM33.EHZ. 2019-09-24T11:21:28.87 0.1 undecidable manual P 164 37.9287 50 -0.05 97
IV.ARRO.EHZ. 2019-09-24T11:21:28.97 0.1 undecidable manual P 222 38.9277 50 -0.09 96
IV.GUMA.HHZ. 2019-09-24T11:21:28.05 0.1 undecidable manual P 39 32.0457 50 0.05 98
IV.MC2.EHZ. 2019-09-24T11:21:27.29 0.3 undecidable manual S 46 11.5773 131 0.47 70
IV.SMA1.EHZ. 2019-09-24T11:21:27.64 0.1 undecidable manual P 139 30.6471 50 -0.15 96
IV.CSP1.EHZ. 2019-09-24T11:21:27.42 0.1 undecidable manual P 19 29.6481 50 -0.22 95
IV.MMO1.HNZ. 2019-09-24T11:21:26.05 0.1 undecidable manual P 71 20.6682 116 -0.05 100
IV.CESI.HHZ. 2019-09-24T11:21:26.57 0.1 undecidable manual P 321 23.6541 113 -0.09 98
IV.MTRA.EHZ. 2019-09-24T11:21:26.97 0.1 undecidable manual P 110 26.751 50 -0.22 95
IV.FDMO.HHZ. 2019-09-24T11:21:26.31 0.1 undecidable manual P 360 21.9669 114 -0.04 100
IV.GAVE.EHZ. 2019-09-24T11:21:26.48 0.1 undecidable manual P 224 22.5552 114 0.02 100
IV.NRCA.HNZ. 2019-09-24T11:21:25.23 0.3 undecidable manual S 104 2.2977 167 0.16 75
IT.MTCL.HGZ. 2019-09-24T11:21:25.62 0.1 undecidable manual P 338 18.6702 118 -0.13 98
IV.MC2.EHZ. 2019-09-24T11:21:24.90 0.1 undecidable manual P 46 11.5773 131 0.32 96
IV.NRCA.HNZ. 2019-09-24T11:21:23.79 0.1 undecidable manual P 104 2.2977 167 0.22 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHE. ML:1.5 0.00021300000000000003 1.58 AML other m 2019-09-24T11:21:30.96
IV.GAVE.EHN. ML:1.5 0.0002185 0.3 AML other m 2019-09-24T11:21:30.45
IV.CESI.HHN. ML:1.5 0.000211 0.24 AML other m 2019-09-24T11:21:30.48
IV.CESI.HHE. ML:1.4 0.0001535 0.44 AML other m 2019-09-24T11:21:30.60
IV.MTRA.EHN. ML:1.2 0.00007764999999999999 1 AML other m 2019-09-24T11:21:31.83
IV.MTRA.EHE. ML:1.3 0.000107 0.94 AML other m 2019-09-24T11:21:32.62
IV.TERO.HHN. ML:1.3 0.00005785 0.08 AML other m 2019-09-24T11:21:37.75
IV.TERO.HHE. ML:1.0 0.00003085 0.8 AML other m 2019-09-24T11:21:38.86
IV.FDMO.HHE. ML:1.1 0.00008011268999999999 0.1024 AML other m 2019-09-24T11:21:30.17
IV.FDMO.HHN. ML:0.8 0.00004472131 0.16 AML other m 2019-09-24T11:21:30.02
IV.CSP1.EHE. ML:1.1 0.00006410124 0.256 AML other m 2019-09-24T11:21:32.72
IV.CSP1.EHN. ML:1.0 0.000051693379999999994 0.1344 AML other m 2019-09-24T11:21:33.44
IV.GUMA.HHE. ML:1.3 0.00009017019 0.1984 AML other m 2019-09-24T11:21:34.89
IV.GUMA.HHN. ML:1.4 0.00012320893 0.1984 AML other m 2019-09-24T11:21:34.15
IV.RM33.EHE. ML:0.8 0.000024436053499999997 0.6208 AML other m 2019-09-24T11:21:34.65
IV.RM33.EHN. ML:0.9 0.000028277593 3.2192 AML other m 2019-09-24T11:21:34.16
IV.ARRO.EHE. ML:0.8 0.00002147433 0.1792 AML other m 2019-09-24T11:21:36.80
IV.ARRO.EHN. ML:0.8 0.000023192919999999997 0.1408 AML other m 2019-09-24T11:21:36.20
IV.MOMA.HHE. ML:1.0 0.00002781551 0.1408 AML other m 2019-09-24T11:21:37.74
IV.MOMA.HHN. ML:0.9 0.0000251357235 0.1408 AML other m 2019-09-24T11:21:37.60
IV.EL6.EHE. ML:0.9 0.000020295055 1.1264 AML other m 2019-09-24T11:21:38.72
IV.EL6.EHN. ML:0.9 0.000020894029000000003 0.864 AML other m 2019-09-24T11:21:39.78
IV.GIGS.HHE. ML:0.4 0.000007071861000000001 0.96 AML other m 2019-09-24T11:21:40.52
IV.GIGS.HHN. ML:1.3 0.000039448745 2.6176 AML other m 2019-09-24T11:21:41.15
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