Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 05-04-2024 and time 22:53:53 (Italy) in region 1 km SE Spoleto (PG)

A magnitude ML 1.6 earthquake occured in region: 1 km SE Spoleto (PG), on

  • 05-04-2024 20:53:53 (UTC)
  • 05-04-2024 22:53:53 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7260, 12.7430 at 11 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
Spoleto PG 1 38218 38218
Scheggino PG 7 461 38679
Sant'Anatolia di Narco PG 8 564 39243
Campello sul Clitunno PG 11 2442 41685
Vallo di Nera PG 11 364 42049
Ferentillo TR 12 1913 43962
Castel Ritaldi PG 12 3278 47240
Montefranco TR 14 1276 48516
Poggiodomo PG 16 117 48633
Arrone TR 16 2763 51396
Acquasparta TR 17 4778 56174
Trevi PG 17 8469 64643
Polino TR 18 233 64876
Cerreto di Spoleto PG 18 1075 65951
Giano dell'Umbria PG 18 3846 69797
Massa Martana PG 19 3770 73567
Monteleone di Spoleto PG 19 599 74166
Terni TR 20 111501 185667

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km NE of Terni (111501 inhabitants)
26 Km S of Foligno (57155 inhabitants)
51 Km SE of Perugia (166134 inhabitants)
62 Km NE of Viterbo (67173 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
79 Km W of Teramo (54892 inhabitants)
81 Km N of Guidonia Montecelio (88673 inhabitants)
85 Km N of Tivoli (56533 inhabitants)
95 Km N of Roma (2864731 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 2024-04-05
20:53:53		 42.7257 12.7433 11 2024-04-05
20:59:22		 Sala Sismica INGV-Roma 126506681
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-05 20:53:53 ± 0.04
Latitude 42.7257 ± 0.0027
Longitude 12.7433 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126506681

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 315
Semi-minor axis of confidence ellipse (meter) 233
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 218
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 77
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 13
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.40020
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 126506681
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-05 20:59:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.BDI.HHZ. 2024-04-05T20:54:52.92 3.0 undecidable manual Sn -1.85 0
IV.MCRV.HHZ. 2024-04-05T20:54:33.69 3.0 undecidable manual Pn -2.92 0
IV.BDI.HHZ. 2024-04-05T20:54:26.61 3.0 negative manual Pn -1.37 0
IV.GIUL.HHZ. 2024-04-05T20:54:19.23 3.0 positive manual P 2.17 0
IV.CING.HHZ. 2024-04-05T20:54:18.84 3.0 undecidable manual S -0.37 0
IV.ATMI.HHZ. 2024-04-05T20:54:10.05 3.0 positive manual P 2.52 0
IV.PIEI.HHZ. 2024-04-05T20:54:06.83 3.0 undecidable manual P -2.91 0
IV.TERO.HHZ. 2024-04-05T20:54:05.99 3.0 positive manual P -0.86 0
IV.GUMA.HHZ. 2024-04-05T20:54:05.06 3.0 positive manual P 0.26 0
IV.ATFO.HHZ. 2024-04-05T20:54:04.48 3.0 undecidable manual P -2.1 0
IV.FIAM.HHZ. 2024-04-05T20:54:04.42 3.0 negative manual P -0.75 0
IV.MURB.HHZ. 2024-04-05T20:54:04.77 3.0 negative manual P -0.11 0
IV.LNSS.HHZ. 2024-04-05T20:54:03.54 0.3 undecidable manual S 119 27.75 50 -0.17 71
IV.SNTG.HHZ. 2024-04-05T20:54:03.04 3.0 undecidable manual P -1.59 0
IV.CSP1.EHZ. 2024-04-05T20:54:03.26 3.0 positive manual P -0.54 0
IV.SMA1.EHZ. 2024-04-05T20:54:03.03 3.0 positive manual P -0.22 0
IV.MMO1.EHZ. 2024-04-05T20:54:03.10 3.0 negative manual P -0.19 0
IV.MGAB.HHZ. 2024-04-05T20:54:03.46 3.0 undecidable manual P -0.6 0
IV.RM33.EHZ. 2024-04-05T20:54:02.21 3.0 positive manual P -0.49 0
IV.FDMO.HHZ. 2024-04-05T20:54:02.02 0.1 undecidable manual P 39 44.4222 50 -0.02 95
IV.MML1.EHZ. 2024-04-05T20:54:02.47 3.0 positive manual P 0.16 0
IV.CESI.HHZ. 2024-04-05T20:54:00.45 0.1 undecidable manual P 23 33.6441 50 0.07 95
IV.MOMA.HHZ. 2024-04-05T20:54:00.35 0.3 undecidable manual S 302 16.5723 122 -0.17 72
IV.NRCA.HHZ. 2024-04-05T20:54:00.12 0.1 negative manual P 68 32.4453 50 -0.09 95
IV.CESX.HHZ. 2024-04-05T20:54:00.92 0.3 undecidable manual S 225 18.1707 120 -0.09 73
IV.ASSB.HHZ. 2024-04-05T20:54:00.87 0.1 undecidable manual P 349 35.8419 50 0.15 94
IV.LNSS.HHZ. 2024-04-05T20:53:59.48 0.1 negative manual P 119 27.75 50 0 98
IV.GAVE.EHZ. 2024-04-05T20:53:59.48 0.3 undecidable manual S 107 12.876 129 0 75
IV.MOMA.HHZ. 2024-04-05T20:53:57.65 0.1 undecidable manual P 302 16.5723 122 0 100
IV.CESX.HHZ. 2024-04-05T20:53:57.97 0.1 undecidable manual P 225 18.1707 120 0.04 99
IV.GAVE.EHZ. 2024-04-05T20:53:57.02 0.1 positive manual P 107 12.876 129 -0.02 100
IV.ARRO.EHZ. 2024-04-05T20:53:57.86 0.3 positive manual P 174 16.3725 123 0.25 71
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.HNE. ML:2.0 0.0011970000000000001 0.86 AML other m 2024-04-05T20:54:00.11
IV.GAVE.EHE. ML:2.0 0.001164 1.68 AML other m 2024-04-05T20:54:00.11
IV.GAVE.EHN. ML:1.9 0.000851 0.82 AML other m 2024-04-05T20:54:00.73
IV.GAVE.HNN. ML:1.5 0.00029949999999999996 0.84 AML other m 2024-04-05T20:54:00.74
IV.MOMA.HNE. ML:1.8 0.000488 0.3 AML other m 2024-04-05T20:54:00.54
IV.MOMA.HHN. ML:1.8 0.0006095 0.3 AML other m 2024-04-05T20:54:00.56
IV.MOMA.HHE. ML:1.8 0.0004905 0.86 AML other m 2024-04-05T20:54:00.83
IV.ARRO.EHN. ML:1.2 0.00014800000000000002 0.94 AML other m 2024-04-05T20:54:01.88
IV.CESX.HHN. ML:1.5 0.00027649999999999994 0.7 AML other m 2024-04-05T20:54:01.52
IV.MOMA.HNN. ML:1.8 0.0005434999999999999 0.16 AML other m 2024-04-05T20:54:01.57
IV.CESX.HHE. ML:1.6 0.000293 0.4 AML other m 2024-04-05T20:54:02.35
IV.ARRO.EHE. ML:1.3 0.00017199999999999998 0.44 AML other m 2024-04-05T20:54:02.64
IV.LNSS.HHE. ML:2.0 0.000508 0.92 AML other m 2024-04-05T20:54:04.26
IV.LNSS.HHN. ML:1.8 0.00035850000000000004 0.76 AML other m 2024-04-05T20:54:04.08
IV.CESI.HHN. ML:1.6 0.000188 0.2 AML other m 2024-04-05T20:54:05.63
IV.NRCA.HHE. ML:1.7 0.00023449999999999998 0.42 AML other m 2024-04-05T20:54:05.49
IV.CESI.HHE. ML:1.6 0.000155 0.46 AML other m 2024-04-05T20:54:05.68
IV.NRCA.HHN. ML:1.7 0.00020649999999999998 0.08 AML other m 2024-04-05T20:54:06.49
IV.ASSB.HHN. ML:1.4 0.00009955 0.44 AML other m 2024-04-05T20:54:06.56
IV.ASSB.HHE. ML:1.6 0.00014350000000000002 1.12 AML other m 2024-04-05T20:54:06.98
IV.FDMO.HHN. ML:1.1 0.0000413 0.16 AML other m 2024-04-05T20:54:08.69
IV.FDMO.HHE. ML:1.2 0.00004720000000000001 0.96 AML other m 2024-04-05T20:54:09.31
IV.RM33.EHN. ML:1.5 0.00009045 0.28 AML other m 2024-04-05T20:54:10.39
IV.RM33.EHE. ML:1.5 0.0000968 0.2 AML other m 2024-04-05T20:54:10.68
IV.MML1.EHE. ML:1.4 0.00006975 1.3 AML other m 2024-04-05T20:54:10.74
IV.SMA1.EHE. ML:1.7 0.00011949999999999999 0.52 AML other m 2024-04-05T20:54:10.49
IV.MML1.EHN. ML:1.2 0.00004745 0.1 AML other m 2024-04-05T20:54:10.91
IV.FIAM.HHN. ML:1.1 0.000026000000000000002 0.72 AML other m 2024-04-05T20:54:12.94
IV.SMA1.EHN. ML:1.6 0.00010395 1.6 AML other m 2024-04-05T20:54:12.19
IV.MGAB.HHN. ML:1.5 0.0000732 0.2 AML other m 2024-04-05T20:54:13.92
IV.FIAM.HHE. ML:1.2 0.000032 0.54 AML other m 2024-04-05T20:54:14.11
IV.MGAB.HHE. ML:1.5 0.00006315 0.3 AML other m 2024-04-05T20:54:14.45
IV.MURB.HHE. ML:1.6 0.0000799 1.02 AML other m 2024-04-05T20:54:15.89
IV.GUMA.HHE. ML:1.6 0.00007605 1.56 AML other m 2024-04-05T20:54:16.90
IV.MURB.HHN. ML:1.7 0.00009784999999999999 0.94 AML other m 2024-04-05T20:54:17.47
IV.GUMA.HHN. ML:1.4 0.00005595 0.32 AML other m 2024-04-05T20:54:18.25
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