Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 31-03-2024 and time 18:52:20 (UTC) in region 2 km W Campello sul Clitunno (PG)

A magnitude ML 1.3 earthquake occured in region: 2 km W Campello sul Clitunno (PG), on

  • 31-03-2024 18:52:20 (UTC)
  • 31-03-2024 20:52:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8160, 12.7480 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
Campello sul Clitunno PG 3 2442 2442
Castel Ritaldi PG 6 3278 5720
Trevi PG 7 8469 14189
Spoleto PG 9 38218 52407
Vallo di Nera PG 11 364 52771
Sant'Anatolia di Narco PG 12 564 53335
Montefalco PG 12 5679 59014
Scheggino PG 13 461 59475
Cerreto di Spoleto PG 14 1075 60550
Giano dell'Umbria PG 14 3846 64396
Foligno PG 16 57155 121551
Sellano PG 17 1079 122630
Bevagna PG 17 5081 127711
Massa Martana PG 19 3770 131481
Gualdo Cattaneo PG 19 6155 137636
Poggiodomo PG 19 117 137753

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km S of Foligno (57155 inhabitants)
30 Km N of Terni (111501 inhabitants)
44 Km SE of Perugia (166134 inhabitants)
69 Km NE of Viterbo (67173 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
80 Km W of Teramo (54892 inhabitants)
91 Km N of Guidonia Montecelio (88673 inhabitants)
95 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 1.3 2024-03-31
18:52:20		 42.8163 12.748 9 2024-03-31
19:43:53		 Sala Sismica INGV-Roma 126349491
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-03-31 18:52:20 ± 0.08
Latitude 42.8163 ± 0.0036
Longitude 12.7480 ± 0.0049
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 126349491

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 435
Semi-minor axis of confidence ellipse (meter) 237
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 154
Circular confidence region, given by single value of horizontal uncertainty (meter) 430.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 27
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47574
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 126349491
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-03-31 19:43:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2024-03-31T18:52:36.48 0.6 undecidable manual S 79 47.9187 50 0.52 43
IV.CSP1.EHZ. 2024-03-31T18:52:36.34 0.6 undecidable manual S 50 48.0186 50 0.36 45
IV.NRCA.HHZ. 2024-03-31T18:52:31.17 0.6 undecidable manual S 86 29.8479 107 0.13 49
IV.LNSS.HHZ. 2024-03-31T18:52:31.93 0.6 undecidable manual S 135 33.6441 50 -0.19 48
IV.MGAB.HHZ. 2024-03-31T18:52:30.13 1.0 negative manual P 282 52.8027 50 0.08 24
IV.ARRO.EHZ. 2024-03-31T18:52:30.64 0.6 undecidable manual S 177 26.3514 109 0.75 41
IV.ASSB.HHZ. 2024-03-31T18:52:30.35 0.6 undecidable manual S 344 26.1516 109 0.54 45
IV.CESX.HHZ. 2024-03-31T18:52:30.23 0.3 undecidable manual S 210 26.5512 109 0.28 72
IV.CESI.HHZ. 2024-03-31T18:52:29.71 0.6 undecidable manual S 31 24.4533 110 0.44 46
IV.CSP1.EHZ. 2024-03-31T18:52:29.31 1.0 undecidable manual P 50 48.0186 50 -0.01 24
IV.MMO1.EHZ. 2024-03-31T18:52:28.94 0.6 undecidable manual P 79 47.9187 50 -0.37 45
IV.GAVE.HNZ. 2024-03-31T18:52:27.37 0.6 undecidable manual S 139 18.1707 116 0.1 50
IV.LNSS.HHZ. 2024-03-31T18:52:27.06 0.6 positive manual P 135 33.6441 50 -0.03 50
IV.NRCA.HHZ. 2024-03-31T18:52:26.03 0.3 negative manual P 86 29.8479 107 -0.44 69
IT.GNU.HGZ. 2024-03-31T18:52:26.33 0.6 undecidable manual S 265 14.5743 122 0.18 50
IV.ARRO.EHZ. 2024-03-31T18:52:26.11 0.1 undecidable manual P 177 26.3514 109 0.31 95
IV.MOMA.HHZ. 2024-03-31T18:52:26.39 0.6 undecidable manual S 265 14.5743 122 0.24 49
IV.CESX.HHZ. 2024-03-31T18:52:25.38 0.1 undecidable manual P 210 26.5512 109 -0.46 92
ZO.PDN12.EHZ. 2024-03-31T18:52:25.90 0.6 undecidable manual S 88 13.7751 123 -0.02 51
IV.CESI.HHZ. 2024-03-31T18:52:25.38 0.1 undecidable manual P 31 24.4533 110 -0.06 100
IV.ASSB.HHZ. 2024-03-31T18:52:25.56 0.1 undecidable manual P 344 26.1516 109 -0.2 97
IV.GAVE.HNZ. 2024-03-31T18:52:24.17 0.1 undecidable manual P 139 18.1707 116 -0.12 100
IV.MOMA.HHZ. 2024-03-31T18:52:23.29 1.0 undecidable manual P 265 14.5743 122 -0.36 24
IV.MTCL.HGZ. 2024-03-31T18:52:23.53 3.0 undecidable manual S 0
ZO.PDN12.EHZ. 2024-03-31T18:52:23.33 0.1 undecidable manual P 88 13.7751 123 -0.19 99
IT.GNU.HGZ. 2024-03-31T18:52:23.37 0.1 undecidable manual P 265 14.5743 122 -0.28 97
IV.MTCL.HGZ. 2024-03-31T18:52:22.33 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHN. ML:1.3 0.0001975 0.8 AML other m 2024-03-31T18:52:27.99
IV.MOMA.HHE. ML:1.2 0.0001635 1.4 AML other m 2024-03-31T18:52:29.99
IV.CESI.HHN. ML:1.4 0.000153 1.22 AML other m 2024-03-31T18:52:29.27
IV.ASSB.HHE. ML:1.3 0.00010755000000000001 1.12 AML other m 2024-03-31T18:52:31.24
IV.CESI.HHE. ML:1.2 0.00010839999999999999 0.66 AML other m 2024-03-31T18:52:32.90
IV.LNSS.HHN. ML:1.4 0.00011999999999999999 0.86 AML other m 2024-03-31T18:52:32.70
IV.ASSB.HHN. ML:1.2 0.00008925 0.86 AML other m 2024-03-31T18:52:33.48
IV.NRCA.HHE. ML:1.2 0.00007865 0.42 AML other m 2024-03-31T18:52:33.79
IV.NRCA.HHN. ML:1.2 0.00007325 0.44 AML other m 2024-03-31T18:52:33.96
IV.LNSS.HHE. ML:1.4 0.00010125000000000001 1.44 AML other m 2024-03-31T18:52:33.26
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