Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 16-05-2024 and time 00:20:30 (UTC) in region 4 km SW Spoleto (PG)

A magnitude ML 1.9 earthquake occured in region: 4 km SW Spoleto (PG), on

  • 16-05-2024 00:20:30 (UTC)
  • 16-05-2024 02:20:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7010, 12.7140 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
Spoleto PG 4 38218 38218
Scheggino PG 10 461 38679
Sant'Anatolia di Narco PG 11 564 39243
Ferentillo TR 11 1913 41156
Montefranco TR 12 1276 42432
Acquasparta TR 14 4778 47210
Arrone TR 14 2763 49973
Castel Ritaldi PG 14 3278 53251
Campello sul Clitunno PG 14 2442 55693
Vallo di Nera PG 14 364 56057
Terni TR 16 111501 167558
San Gemini TR 17 5018 172576
Polino TR 17 233 172809
Massa Martana PG 18 3770 176579
Poggiodomo PG 18 117 176696
Giano dell'Umbria PG 19 3846 180542
Montecastrilli TR 19 5022 185564
Trevi PG 20 8469 194033

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NE of Terni (111501 inhabitants)
28 Km S of Foligno (57155 inhabitants)
52 Km SE of Perugia (166134 inhabitants)
59 Km NE of Viterbo (67173 inhabitants)
68 Km NW of L'Aquila (69753 inhabitants)
78 Km N of Guidonia Montecelio (88673 inhabitants)
81 Km W of Teramo (54892 inhabitants)
82 Km N of Tivoli (56533 inhabitants)
92 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 1.9 2024-05-16
00:20:30		 42.7012 12.7138 10 2024-05-16
00:27:51		 Sala Sismica INGV-Roma 127759141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-05-16 00:20:30 ± 0.07
Latitude 42.7012 ± 0.0054
Longitude 12.7138 ± 0.0049
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 127759141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 594
Semi-minor axis of confidence ellipse (meter) 420
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 191
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 71
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.67359
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 42
Type of magnitude ML
Reference to an origin 127759141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-05-16 00:27:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VAGA.HNZ. 2024-05-16T00:21:31.24 3.0 undecidable manual Sg 5.5 0
IV.GUMA.HHZ. 2024-05-16T00:20:52.40 3.0 undecidable manual S 1.85 0
IV.SRES.HHZ. 2024-05-16T00:20:49.61 3.0 undecidable manual S -0.8 0
IV.ATMI.HHZ. 2024-05-16T00:20:48.00 3.0 undecidable manual S -0.22 0
IV.ATCC.EHZ. 2024-05-16T00:20:48.57 0.6 undecidable manual S 354 54.0015 50 0.5 43
IV.MML1.EHZ. 2024-05-16T00:20:47.40 0.3 undecidable manual S 25 50.3163 50 0.32 67
IV.LAV9.HHZ. 2024-05-16T00:20:47.65 3.0 undecidable manual P -2.78 0
IV.FDMO.HHZ. 2024-05-16T00:20:46.85 0.3 undecidable manual S 39 48.0186 50 0.38 67
IV.ATFO.HHZ. 2024-05-16T00:20:44.17 0.1 undecidable manual P 351 74.7696 50 0.17 89
IV.NRCA.HHZ. 2024-05-16T00:20:43.18 0.3 undecidable manual S 66 35.742 50 -0.02 74
IV.CESI.HHZ. 2024-05-16T00:20:43.64 0.3 undecidable manual S 25 37.1295 50 0.09 72
IV.ASSB.HHZ. 2024-05-16T00:20:43.68 0.3 undecidable manual S 353 38.1285 50 -0.15 71
IV.MF5.EHZ. 2024-05-16T00:20:42.79 3.0 negative manual P 0.96 0
IV.MURB.HHZ. 2024-05-16T00:20:42.46 0.1 undecidable manual P 346 64.1913 50 0.08 92
IV.LNSS.HHZ. 2024-05-16T00:20:41.58 0.6 undecidable manual S 112 28.749 50 0.25 47
IV.FIAM.HHZ. 2024-05-16T00:20:41.66 3.0 negative manual P -0.7 0
IV.CSP1.EHZ. 2024-05-16T00:20:41.43 3.0 positive manual P 2.22 0
IV.MGAB.HHZ. 2024-05-16T00:20:40.96 0.1 undecidable manual P 296 54.3012 50 0.1 93
IV.ATCC.EHZ. 2024-05-16T00:20:40.61 0.1 undecidable manual P 354 54.0015 50 -0.2 91
IV.MML1.EHZ. 2024-05-16T00:20:40.06 1.0 negative manual P 25 50.3163 50 -0.18 23
IV.MMO1.EHZ. 2024-05-16T00:20:40.74 3.0 negative manual P 0.96 0
IV.SMA1.EHZ. 2024-05-16T00:20:40.48 3.0 negative manual P -0.08 0
IV.FDMO.HHZ. 2024-05-16T00:20:39.68 0.1 undecidable manual P 39 48.0186 50 -0.21 92
IV.RM33.EHZ. 2024-05-16T00:20:39.48 3.0 negative manual P -0.66 0
IV.ASSB.HHZ. 2024-05-16T00:20:38.10 0.1 undecidable manual P 353 38.1285 50 -0.27 93
IV.GAVE.EHZ. 2024-05-16T00:20:37.22 0.6 undecidable manual S 94 14.7741 124 0.18 49
IV.CESI.HHZ. 2024-05-16T00:20:37.99 0.1 undecidable manual P 25 37.1295 50 -0.22 94
IV.CESX.HHZ. 2024-05-16T00:20:37.14 0.6 undecidable manual S 225 14.5743 124 0.15 50
IV.NRCA.HHZ. 2024-05-16T00:20:37.73 0.1 negative manual P 66 35.742 50 -0.27 93
IV.LNSS.HHZ. 2024-05-16T00:20:36.75 0.1 negative manual P 112 28.749 50 -0.17 96
IV.GAVE.EHZ. 2024-05-16T00:20:34.34 0.1 negative manual P 94 14.7741 124 -0.1 100
IV.CESX.HHZ. 2024-05-16T00:20:34.37 0.3 positive manual P 225 14.5743 124 -0.05 76
IV.ARRO.EHZ. 2024-05-16T00:20:34.64 0.3 negative manual P 163 14.1747 125 0.29 72
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.HNN. ML:1.7 0.000496 0.34 AML other m 2024-05-16T00:20:37.20
IV.GAVE.EHN. ML:2.2 0.00155 0.34 AML other m 2024-05-16T00:20:37.20
IV.GAVE.EHE. ML:2.2 0.0017749999999999999 0.26 AML other m 2024-05-16T00:20:38.30
IV.GAVE.HNE. ML:2.3 0.0019049999999999998 0.26 AML other m 2024-05-16T00:20:38.30
IV.CESX.HHE. ML:2.3 0.002095 1.52 AML other m 2024-05-16T00:20:38.82
IV.CESX.HHN. ML:2.3 0.0018549999999999999 1.5 AML other m 2024-05-16T00:20:39.08
IV.ARRO.EHE. ML:1.9 0.0008334999999999999 1.02 AML other m 2024-05-16T00:20:39.27
IV.ARRO.EHN. ML:1.8 0.0006459999999999999 0.32 AML other m 2024-05-16T00:20:40.51
IV.LNSS.HHE. ML:2.0 0.0004775 0.2 AML other m 2024-05-16T00:20:41.91
IV.NRCA.HHE. ML:2.0 0.00044 0.14 AML other m 2024-05-16T00:20:43.45
IV.NRCA.HHN. ML:2.0 0.00036250000000000003 0.76 AML other m 2024-05-16T00:20:44.13
IV.ASSB.HHN. ML:1.8 0.0002545 0.82 AML other m 2024-05-16T00:20:44.50
IV.LNSS.HHN. ML:2.1 0.0006639999999999999 0.48 AML other m 2024-05-16T00:20:45.79
IV.CESI.HHN. ML:2.0 0.00034250000000000003 0.22 AML other m 2024-05-16T00:20:45.53
IV.ASSB.HHE. ML:1.8 0.000255 0.24 AML other m 2024-05-16T00:20:45.98
IV.FDMO.HHE. ML:1.7 0.0001375 0.2 AML other m 2024-05-16T00:20:47.08
IV.MML1.EHN. ML:1.7 0.000127 0.9 AML other m 2024-05-16T00:20:48.03
IV.FDMO.HHN. ML:1.7 0.0001295 0.64 AML other m 2024-05-16T00:20:48.00
IV.MMO1.EHN. ML:2.0 0.00022099999999999998 0.36 AML other m 2024-05-16T00:20:49.49
IV.SMA1.EHE. ML:2.0 0.0002875 0.82 AML other m 2024-05-16T00:20:50.14
IV.SRES.HHE. ML:1.5 0.00008155 0.22 AML other m 2024-05-16T00:20:50.27
IV.MGAB.HHN. ML:1.8 0.00014000000000000001 0.34 AML other m 2024-05-16T00:20:50.67
IV.RM33.EHN. ML:1.8 0.000168 0.94 AML other m 2024-05-16T00:20:50.20
IV.CSP1.EHN. ML:2.2 0.000327 0.48 AML other m 2024-05-16T00:20:50.97
IV.SRES.HHN. ML:1.3 0.000049449999999999996 0.32 AML other m 2024-05-16T00:20:50.78
IV.MMO1.EHE. ML:1.8 0.000165 0.28 AML other m 2024-05-16T00:20:50.71
IV.ATCC.EHE. ML:1.8 0.0001375 0.68 AML other m 2024-05-16T00:20:50.94
IV.SMA1.EHN. ML:2.1 0.000299 1.04 AML other m 2024-05-16T00:20:51.67
IV.CESI.HHE. ML:1.7 0.000211 0.68 AML other m 2024-05-16T00:20:51.53
IV.MML1.EHE. ML:1.7 0.0001344 0.84 AML other m 2024-05-16T00:20:51.50
IV.ATCC.EHN. ML:1.8 0.00014050000000000003 0.9 AML other m 2024-05-16T00:20:52.40
IV.CSP1.EHE. ML:2.3 0.00040300000000000004 0.58 AML other m 2024-05-16T00:20:52.43
IV.FIAM.HHN. ML:1.6 0.00009279999999999999 1.24 AML other m 2024-05-16T00:20:52.77
IV.FIAM.HHE. ML:1.7 0.00010505 1.16 AML other m 2024-05-16T00:20:52.82
IV.RM33.EHE. ML:1.6 0.0001315 0.9 AML other m 2024-05-16T00:20:53.11
IV.MURB.HHE. ML:2.2 0.0002875 0.3 AML other m 2024-05-16T00:20:54.41
IV.MURB.HHN. ML:2.1 0.00023449999999999998 0.96 AML other m 2024-05-16T00:20:54.87
IV.MGAB.HHE. ML:1.9 0.0001785 0.78 AML other m 2024-05-16T00:20:54.71
IV.GUMA.HHE. ML:2.2 0.00027049999999999996 0.28 AML other m 2024-05-16T00:20:58.17
IV.GUMA.HHN. ML:2.1 0.000251 1.36 AML other m 2024-05-16T00:20:58.89
IV.ATMI.HHN. ML:2.0 0.000142 1.66 AML other m 2024-05-16T00:21:01.16
IV.ATMI.HHE. ML:2.2 0.00024249999999999999 0.32 AML other m 2024-05-16T00:21:03.13
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