Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 09-04-2024 and time 18:01:55 (UTC) in region 8 km E Norcia (PG)

A magnitude ML 1.6 earthquake occured in region: 8 km E Norcia (PG), on

  • 09-04-2024 18:01:55 (UTC)
  • 09-04-2024 20:01:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8110, 13.1890 at 12 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 8 4957 4957
Castelsantangelo sul Nera MC 10 281 5238
Arquata del Tronto AP 10 1178 6416
Montegallo AP 12 523 6939
Accumoli RI 14 667 7606
Preci PG 14 724 8330
Montemonaco AP 15 604 8934
Ussita MC 16 444 9378
Visso MC 16 1107 10485
Cascia PG 18 3217 13702
Acquasanta Terme AP 19 2916 16618
Montefortino FM 19 1178 17796

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km E of Foligno (57155 inhabitants)
45 Km W of Teramo (54892 inhabitants)
52 Km NE of Terni (111501 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
73 Km E of Perugia (166134 inhabitants)
85 Km W of Montesilvano (53738 inhabitants)
92 Km W of Pescara (121014 inhabitants)
94 Km S of Ancona (100861 inhabitants)
95 Km NW of Chieti (51815 inhabitants)
98 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km E of Viterbo (67173 inhabitants)
99 Km NE 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 1.6 2024-04-09
18:01:55		 42.8108 13.1893 13 2024-04-09
18:11:31		 Sala Sismica INGV-Roma 126602941
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-09 18:01:55 ± 0.05
Latitude 42.8108 ± 0.0027
Longitude 13.1893 ± 0.0037
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126602941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 340
Semi-minor axis of confidence ellipse (meter) 36
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 228
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) 39
Number of associated phases, regardless of their use for origin computation 47
Number of defining phases 47
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) 0.05756
Epicentral distance of station farthest from the epicenter (degree) 0.69158
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 126602941
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-09 18:11:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ASSB.HHZ. 2024-04-09T18:02:11.47 0.6 undecidable manual S 301 50.2164 92 0.25 44
IV.SSFR.HHZ. 2024-04-09T18:02:09.03 0.1 undecidable manual P 335 76.7676 91 0.42 80
IV.MML1.EHZ. 2024-04-09T18:02:08.00 0.6 undecidable manual S 332 37.9287 93 0.05 46
IV.TERO.HHZ. 2024-04-09T18:02:08.29 0.6 undecidable manual S 122 39.7269 93 -0.13 46
IV.RM33.EHZ. 2024-04-09T18:02:07.04 0.6 undecidable manual S 176 33.5442 94 0.26 46
IV.CAMP.HHZ. 2024-04-09T18:02:07.23 0.6 undecidable manual S 150 35.4423 94 -0.04 47
IV.CSP1.EHZ. 2024-04-09T18:02:06.11 0.6 undecidable manual S 2 31.1466 94 -0.04 48
IV.CESI.HHZ. 2024-04-09T18:02:06.16 0.6 undecidable manual S 313 31.6461 94 -0.1 47
IV.FIAM.HHZ. 2024-04-09T18:02:06.31 0.3 undecidable manual P 186 60.495 92 0.21 66
IV.GAVE.EHZ. 2024-04-09T18:02:05.37 0.6 undecidable manual S 241 27.4503 95 0.23 46
IT.MTCL.HGZ. 2024-04-09T18:02:04.29 0.6 undecidable manual S 323 25.4523 96 -0.35 45
IV.FDMO.HHZ. 2024-04-09T18:02:04.47 0.6 undecidable manual S 342 26.3514 96 -0.4 45
IV.ASSB.HHZ. 2024-04-09T18:02:04.56 0.6 positive manual P 301 50.2164 92 0.05 46
IV.LNSS.HHZ. 2024-04-09T18:02:04.94 0.6 undecidable manual S 208 26.0517 96 0.15 47
IV.OFFI.HHZ. 2024-04-09T18:02:03.84 0.6 undecidable manual P 71 42.624 93 0.49 42
IV.SMA1.EHZ. 2024-04-09T18:02:03.94 0.6 undecidable manual S 149 23.2545 98 -0.11 47
IV.FEMA.HNZ. 2024-04-09T18:02:03.07 0.6 undecidable manual S 326 20.2686 100 -0.18 47
ZO.PDN12.EHZ. 2024-04-09T18:02:03.97 0.6 undecidable manual S 273 22.1556 98 0.21 47
IV.CAMP.HHZ. 2024-04-09T18:02:02.15 0.1 positive manual P 150 35.4423 94 -0.09 93
IV.MML1.EHZ. 2024-04-09T18:02:02.61 0.1 undecidable manual P 332 37.9287 93 -0.02 95
7F.SIB1.EHZ. 2024-04-09T18:02:02.01 0.6 undecidable manual S 35 11.3775 123 0.97 37
IV.TERO.HHZ. 2024-04-09T18:02:02.73 0.6 positive manual P 122 39.7269 93 -0.17 45
IV.MTRA.EHZ. 2024-04-09T18:02:02.33 0.6 undecidable manual S 110 17.871 104 -0.31 46
IV.GAVE.EHZ. 2024-04-09T18:02:01.00 0.1 undecidable manual P 241 27.4503 95 -0.01 96
IV.RM33.EHZ. 2024-04-09T18:02:01.87 0.1 undecidable manual P 176 33.5442 94 -0.08 93
IV.MMO1.HNZ. 2024-04-09T18:02:01.66 0.6 undecidable manual S 49 14.874 111 -0.21 47
IV.MC2.EHZ. 2024-04-09T18:02:01.11 0.6 undecidable manual S 360 11.1777 124 0.12 48
7F.SIB2.EHZ. 2024-04-09T18:02:01.00 0.6 undecidable manual S 46 12.876 118 -0.38 46
IV.CSP1.EHZ. 2024-04-09T18:02:01.47 0.1 undecidable manual P 2 31.1466 94 -0.12 94
IV.CESI.HHZ. 2024-04-09T18:02:01.58 0.1 positive manual P 313 31.6461 94 -0.07 95
ZO.PDN12.EHZ. 2024-04-09T18:02:00.17 0.1 undecidable manual P 273 22.1556 98 -0.04 97
IV.LNSS.HHZ. 2024-04-09T18:02:00.87 0.1 undecidable manual P 208 26.0517 96 0.07 96
IV.SMA1.EHZ. 2024-04-09T18:02:00.30 0.1 negative manual P 149 23.2545 98 -0.08 95
IT.MTCL.HGZ. 2024-04-09T18:02:00.51 0.1 undecidable manual P 323 25.4523 96 -0.2 93
7F.SIB3.EHZ. 2024-04-09T18:02:00.29 0.6 undecidable manual S 43 9.6792 130 -0.39 46
IV.FDMO.HHZ. 2024-04-09T18:02:00.67 0.3 negative manual P 342 26.3514 96 -0.18 70
IV.FEMA.HNZ. 2024-04-09T18:01:59.91 0.1 undecidable manual P 326 20.2686 100 0 97
IV.MTRA.EHZ. 2024-04-09T18:01:59.48 0.1 undecidable manual P 110 17.871 104 -0.08 96
IV.MMO1.HNZ. 2024-04-09T18:01:59.08 0.1 undecidable manual P 49 14.874 111 -0.04 98
ZO.PDN11.EHZ. 2024-04-09T18:01:59.92 0.6 undecidable manual S 242 6.3936 145 -0.16 48
IV.NRCA.HHZ. 2024-04-09T18:01:59.87 0.6 undecidable manual S 292 6.5934 144 -0.24 47
7F.SIB1.EHZ. 2024-04-09T18:01:59.71 0.1 undecidable manual P 35 11.3775 123 1.07 70
IV.NRCA.HHZ. 2024-04-09T18:01:58.12 0.1 undecidable manual P 292 6.5934 144 0.02 100
7F.SIB3.EHZ. 2024-04-09T18:01:58.32 0.1 undecidable manual P 43 9.6792 130 -0.11 97
IV.MC2.EHZ. 2024-04-09T18:01:58.71 0.1 undecidable manual P 360 11.1777 124 0.1 97
7F.SIB2.EHZ. 2024-04-09T18:01:58.73 0.1 undecidable manual P 46 12.876 118 -0.11 97
ZO.PDN11.EHZ. 2024-04-09T18:01:58.15 0.1 undecidable manual P 242 6.3936 145 0.06 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:2.3 0.002385 0.18 AML other m 2024-04-09T18:02:00.12
IV.NRCA.HNE. ML:2.2 0.00226 0.2 AML other m 2024-04-09T18:02:00.12
IV.NRCA.HNN. ML:2.1 0.0017400000000000002 0.12 AML other m 2024-04-09T18:02:00.57
IV.NRCA.HHN. ML:2.2 0.0019299999999999999 0.88 AML other m 2024-04-09T18:02:00.57
IV.MTRA.EHE. ML:1.7 0.000418 0.38 AML other m 2024-04-09T18:02:02.54
IV.MTRA.HNE. ML:1.7 0.00041349999999999997 0.38 AML other m 2024-04-09T18:02:02.73
IV.MTRA.HNN. ML:1.7 0.00042 1.66 AML other m 2024-04-09T18:02:02.83
IV.MTRA.EHN. ML:1.7 0.00040500000000000003 1.66 AML other m 2024-04-09T18:02:02.83
IV.SMA1.EHN. ML:1.4 0.000169 1.02 AML other m 2024-04-09T18:02:04.61
IV.FDMO.HHE. ML:1.3 0.00010685 0.26 AML other m 2024-04-09T18:02:04.77
IV.SMA1.EHE. ML:1.5 0.00020500000000000002 1.48 AML other m 2024-04-09T18:02:04.82
IV.GAVE.EHN. ML:1.6 0.000186 0.32 AML other m 2024-04-09T18:02:05.53
IV.GAVE.EHE. ML:1.7 0.000242 0.18 AML other m 2024-04-09T18:02:05.63
IV.FDMO.HHN. ML:1.4 0.00014000000000000001 0.44 AML other m 2024-04-09T18:02:05.87
IV.LNSS.HHE. ML:1.7 0.00026700000000000004 0.8 AML other m 2024-04-09T18:02:05.25
IV.LNSS.HHN. ML:1.8 0.00035350000000000003 0.76 AML other m 2024-04-09T18:02:05.66
IV.CESI.HHE. ML:1.6 0.00016700000000000002 0.52 AML other m 2024-04-09T18:02:06.68
IV.CESI.HHN. ML:1.8 0.0002945 0.9 AML other m 2024-04-09T18:02:07.68
IV.CAMP.HHN. ML:1.3 0.000084 0.24 AML other m 2024-04-09T18:02:07.40
IV.CAMP.HHE. ML:1.4 0.0000964 0.26 AML other m 2024-04-09T18:02:07.36
IV.RM33.EHN. ML:1.3 0.00008274999999999999 0.42 AML other m 2024-04-09T18:02:08.25
IV.RM33.EHE. ML:1.3 0.0000826 0.96 AML other m 2024-04-09T18:02:08.47
IV.MML1.EHN. ML:1.2 0.000062 0.16 AML other m 2024-04-09T18:02:08.60
IV.MML1.EHE. ML:1.3 0.00006325 0.12 AML other m 2024-04-09T18:02:08.87
IV.TERO.HHN. ML:1.7 0.000185 0.36 AML other m 2024-04-09T18:02:08.89
IV.TERO.HHE. ML:1.6 0.000126 0.1 AML other m 2024-04-09T18:02:09.71
IV.ASSB.HHN. ML:1.3 0.0000566 0.2 AML other m 2024-04-09T18:02:11.96
IV.ASSB.HHE. ML:1.3 0.000056349999999999994 0.46 AML other m 2024-04-09T18:02:13.17
IV.SSFR.HHN. ML:1.3 0.00003245 0.16 AML other m 2024-04-09T18:02:22.44
IV.SSFR.HHE. ML:1.5 0.000046899999999999995 0.7 AML other m 2024-04-09T18:02:22.63
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