Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 17-04-2024 and time 23:44:22 (Italy) in region 4 km W Sellano (PG)

A magnitude ML 1.3 earthquake occured in region: 4 km W Sellano (PG), on

  • 17-04-2024 21:44:22 (UTC)
  • 17-04-2024 23:44:22 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8820, 12.8780 at 9 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
Sellano PG 4 1079 1079
Cerreto di Spoleto PG 8 1075 2154
Trevi PG 11 8469 10623
Campello sul Clitunno PG 11 2442 13065
Vallo di Nera PG 13 364 13429
Preci PG 13 724 14153
Monte Cavallo MC 16 145 14298
Foligno PG 16 57155 71453
Sant'Anatolia di Narco PG 17 564 72017
Castel Ritaldi PG 18 3278 75295
Visso MC 18 1107 76402
Montefalco PG 18 5679 82081
Scheggino PG 19 461 82542
Poggiodomo PG 20 117 82659
Spoleto PG 20 38218 120877

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km SE of Foligno (57155 inhabitants)
40 Km NE of Terni (111501 inhabitants)
47 Km SE of Perugia (166134 inhabitants)
72 Km W of Teramo (54892 inhabitants)
73 Km NW of L'Aquila (69753 inhabitants)
82 Km NE of Viterbo (67173 inhabitants)
97 Km SW of Ancona (100861 inhabitants)
99 Km N of Guidonia Montecelio (88673 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 1.3 2024-04-17
21:44:22		 42.8823 12.8775 9 2024-04-17
21:56:02		 Sala Sismica INGV-Roma 126841731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-17 21:44:22 ± 0.06
Latitude 42.8823 ± 0.0036
Longitude 12.8775 ± 0.0061
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126841731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 398
Semi-minor axis of confidence ellipse (meter) 310
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 275
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 64
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.12411
Epicentral distance of station farthest from the epicenter (degree) 0.64481
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 20
Type of magnitude ML
Reference to an origin 126841731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-17 21:56:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FRON.EHZ. 2024-04-17T21:44:44.94 0.1 undecidable manual P 71.5728 9.78 0
IV.SSFR.HHZ. 2024-04-17T21:44:33.98 0.1 undecidable manual P 353 61.8936 50 0.3 89
IV.MML1.EHZ. 2024-04-17T21:44:32.14 0.3 undecidable manual S 17 26.751 109 -0.15 73
IV.ASSB.HHZ. 2024-04-17T21:44:31.19 0.3 undecidable manual S 315 25.1526 110 -0.57 66
IV.MURB.HHZ. 2024-04-17T21:44:31.98 0.1 undecidable manual P 326 51.0156 50 -0.02 96
IV.RM33.EHZ. 2024-04-17T21:44:31.83 0.1 undecidable manual P 146 49.7169 50 0.04 96
IV.SMA1.EHZ. 2024-04-17T21:44:31.76 0.1 undecidable manual P 127 46.62 50 0.45 88
IV.GAVE.EHZ. 2024-04-17T21:44:30.23 0.3 undecidable manual S 176 21.1677 113 -0.23 73
IV.ATCC.EHZ. 2024-04-17T21:44:30.07 0.1 undecidable manual P 330 38.7279 50 -0.03 98
IV.FDMO.HHZ. 2024-04-17T21:44:30.91 0.3 undecidable manual S 45 24.1536 111 -0.52 67
IV.SNTG.HHZ. 2024-04-17T21:44:30.32 0.1 undecidable manual P 7 41.625 50 -0.23 93
IV.MMO1.EHZ. 2024-04-17T21:44:29.74 0.1 undecidable manual P 87 36.5412 50 -0.02 98
IV.CSP1.EHZ. 2024-04-17T21:44:29.49 0.1 undecidable manual P 49 35.3424 50 -0.08 97
IV.CESX.HHZ. 2024-04-17T21:44:29.86 0.1 undecidable manual P 218 38.5281 50 -0.21 94
IV.ARRO.EHZ. 2024-04-17T21:44:29.38 0.1 undecidable manual P 195 34.8429 50 -0.12 97
IV.NRCA.HHZ. 2024-04-17T21:44:29.75 0.3 undecidable manual S 106 19.9689 115 -0.35 71
IV.LNSS.HHZ. 2024-04-17T21:44:29.15 0.1 undecidable manual P 157 33.744 50 -0.18 96
IV.MML1.EHZ. 2024-04-17T21:44:28.21 0.1 positive manual P 17 26.751 109 0.07 99
IV.MOMA.HHZ. 2024-04-17T21:44:28.21 0.1 undecidable manual P 251 26.4513 109 0.13 98
IV.CESI.HHZ. 2024-04-17T21:44:28.66 0.6 undecidable manual S 9 13.7751 124 0.44 47
IV.NRCA.HHZ. 2024-04-17T21:44:27.03 0.1 undecidable manual P 106 19.9689 115 0.16 99
IV.GAVE.EHZ. 2024-04-17T21:44:27.31 0.1 undecidable manual P 176 21.1677 113 0.23 97
IV.ASSB.HHZ. 2024-04-17T21:44:27.87 0.1 undecidable manual P 315 25.1526 110 0.04 100
IV.FDMO.HHZ. 2024-04-17T21:44:27.73 0.3 positive manual P 45 24.1536 111 0.08 74
IV.CESI.HHZ. 2024-04-17T21:44:26.30 0.1 undecidable manual P 9 13.7751 124 0.51 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.6 0.00044750000000000004 0.1 AML other m 2024-04-17T21:44:29.18
IV.CESI.HHN. ML:1.7 0.0004805 0.18 AML other m 2024-04-17T21:44:29.46
IV.NRCA.HHN. ML:1.5 0.000242 0.12 AML other m 2024-04-17T21:44:30.57
IV.GAVE.EHE. ML:1.5 0.00023799999999999998 0.16 AML other m 2024-04-17T21:44:31.17
IV.NRCA.HHE. ML:1.5 0.00022600000000000002 0.8 AML other m 2024-04-17T21:44:31.34
IV.ASSB.HHN. ML:1.3 0.000117 1.62 AML other m 2024-04-17T21:44:31.16
IV.FDMO.HHE. ML:1.1 0.0000814 0.94 AML other m 2024-04-17T21:44:32.03
IV.ASSB.HHE. ML:1.2 0.00010135 1.54 AML other m 2024-04-17T21:44:32.16
IV.GAVE.EHN. ML:1.4 0.0001615 1.18 AML other m 2024-04-17T21:44:32.79
IV.MML1.EHE. ML:1.1 0.00006925 0.16 AML other m 2024-04-17T21:44:32.52
IV.FDMO.HHN. ML:1.0 0.00007155 0.68 AML other m 2024-04-17T21:44:32.79
IV.MOMA.HHN. ML:1.2 0.00008005 0.16 AML other m 2024-04-17T21:44:33.56
IV.MOMA.HHE. ML:1.3 0.00010395 0.14 AML other m 2024-04-17T21:44:33.69
IV.MML1.EHN. ML:1.0 0.000052449999999999994 1.1 AML other m 2024-04-17T21:44:33.18
IV.LNSS.HHE. ML:1.4 0.00009820000000000002 0.8 AML other m 2024-04-17T21:44:35.21
IV.LNSS.HHN. ML:1.4 0.00009340000000000001 0.76 AML other m 2024-04-17T21:44:35.93
IV.ATCC.EHN. ML:1.3 0.0000718 1.54 AML other m 2024-04-17T21:44:36.07
IV.ATCC.EHE. ML:1.2 0.00006055 0.42 AML other m 2024-04-17T21:44:37.84
IV.MURB.HHN. ML:1.6 0.000113 1.02 AML other m 2024-04-17T21:44:40.09
IV.MURB.HHE. ML:1.6 0.00010250000000000001 0.26 AML other m 2024-04-17T21:44:40.50
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