Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 11-04-2024 and time 21:32:36 (Italy) in region 4 km E Castel Ritaldi (PG)

A magnitude ML 1.7 earthquake occured in region: 4 km E Castel Ritaldi (PG), on

  • 11-04-2024 19:32:36 (UTC)
  • 11-04-2024 21:32:36 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8140, 12.7250 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
Castel Ritaldi PG 4 3278 3278
Campello sul Clitunno PG 4 2442 5720
Trevi PG 7 8469 14189
Spoleto PG 9 38218 52407
Montefalco PG 11 5679 58086
Giano dell'Umbria PG 12 3846 61932
Vallo di Nera PG 12 364 62296
Sant'Anatolia di Narco PG 13 564 62860
Scheggino PG 14 461 63321
Cerreto di Spoleto PG 16 1075 64396
Foligno PG 16 57155 121551
Bevagna PG 16 5081 126632
Massa Martana PG 17 3770 130402
Gualdo Cattaneo PG 17 6155 136557
Sellano PG 19 1079 137636
Acquasparta TR 20 4778 142414

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km S of Foligno (57155 inhabitants)
29 Km N of Terni (111501 inhabitants)
43 Km SE of Perugia (166134 inhabitants)
67 Km NE of Viterbo (67173 inhabitants)
75 Km NW of L'Aquila (69753 inhabitants)
82 Km W of Teramo (54892 inhabitants)
90 Km N of Guidonia Montecelio (88673 inhabitants)
95 Km N of Tivoli (56533 inhabitants)
100 Km SE of Arezzo (99543 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 1.7 2024-04-11
19:32:36		 42.8142 12.7247 10 2024-04-11
19:37:54		 Sala Sismica INGV-Roma 126654331
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-11 19:32:36 ± 0.03
Latitude 42.8142 ± 0.0027
Longitude 12.7247 ± 0.0025
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126654331

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 279
Semi-minor axis of confidence ellipse (meter) 227
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 212
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 41
Number of defining phases 21
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) 0.34624
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 50
Type of magnitude ML
Reference to an origin 126654331
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-11 19:37:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2024-04-11T19:33:01.99 3.0 undecidable manual S 0.63 0
IV.FRON.EHZ. 2024-04-11T19:33:01.56 3.0 undecidable manual S 0.13 0
IV.CING.HHZ. 2024-04-11T19:33:00.05 3.0 undecidable manual S 0.11 0
IV.GIUL.HHZ. 2024-04-11T19:32:59.20 3.0 positive manual P -0.34 0
IV.SSFR.HHZ. 2024-04-11T19:32:58.53 3.0 undecidable manual S -0.27 0
IV.FIAM.HHZ. 2024-04-11T19:32:58.04 3.0 undecidable manual S -0.28 0
IV.RM33.EHZ. 2024-04-11T19:32:53.82 3.0 undecidable manual S 0.22 0
IV.CAFI.HHZ. 2024-04-11T19:32:51.93 3.0 undecidable manual P 0.65 0
IV.CING.HHZ. 2024-04-11T19:32:49.53 3.0 undecidable manual P 0.06 0
IV.FDMO.HHZ. 2024-04-11T19:32:49.09 1.0 undecidable manual S 50 38.4282 50 0.07 24
IV.TERO.HHZ. 2024-04-11T19:32:49.36 3.0 negative manual P -0.32 0
IV.SSFR.HHZ. 2024-04-11T19:32:48.74 3.0 undecidable manual P -0.09 0
IV.MF5.EHZ. 2024-04-11T19:32:48.29 3.0 negative manual P 0.56 0
IV.NRCA.HHZ. 2024-04-11T19:32:47.56 0.1 undecidable manual S 86 31.746 50 0.31 92
IV.GUMA.HHZ. 2024-04-11T19:32:47.33 3.0 positive manual P 0.59 0
IV.LNSS.HHZ. 2024-04-11T19:32:47.96 0.6 undecidable manual S 132 34.8429 50 -0.1 48
IV.FOSV.EHZ. 2024-04-11T19:32:46.05 3.0 negative manual P -0.16 0
IV.SMA1.EHZ. 2024-04-11T19:32:46.48 3.0 positive manual P 0.31 0
IV.SNTG.HHZ. 2024-04-11T19:32:46.08 3.0 positive manual P 0.11 0
IV.ASSB.HHZ. 2024-04-11T19:32:45.56 0.6 undecidable manual S 348 25.9518 50 -0.12 48
IV.MMO1.EHZ. 2024-04-11T19:32:45.38 3.0 positive manual P -0.2 0
IV.RM33.EHZ. 2024-04-11T19:32:45.75 3.0 positive manual P -0.16 0
IV.CESX.HHZ. 2024-04-11T19:32:45.57 0.6 undecidable manual S 206 25.4523 111 0.02 49
IV.MGAB.HHZ. 2024-04-11T19:32:45.85 3.0 positive manual P 0.07 0
IV.CSP1.EHZ. 2024-04-11T19:32:45.48 3.0 positive manual P -0.1 0
IV.CESI.HHZ. 2024-04-11T19:32:45.44 0.6 undecidable manual S 35 25.752 50 -0.2 48
IV.GAVE.EHZ. 2024-04-11T19:32:43.50 0.6 undecidable manual S 134 19.3695 117 -0.12 49
IV.FDMO.HHZ. 2024-04-11T19:32:43.58 0.6 positive manual P 50 38.4282 50 0.03 48
IV.NRCA.HHZ. 2024-04-11T19:32:42.42 0.1 undecidable manual P 86 31.746 50 -0.1 96
ZO.PDN12.EHZ. 2024-04-11T19:32:42.36 0.6 undecidable manual S 87 15.6732 123 -0.16 49
IV.LNSS.HHZ. 2024-04-11T19:32:42.90 0.1 undecidable manual P 132 34.8429 50 -0.09 96
IV.CESX.HHZ. 2024-04-11T19:32:41.35 0.6 undecidable manual P 206 25.4523 111 -0.19 48
IV.MOMA.HHZ. 2024-04-11T19:32:41.49 0.3 undecidable manual S 265 12.5763 128 -0.17 73
IV.CESI.HHZ. 2024-04-11T19:32:41.58 0.1 positive manual P 35 25.752 50 -0.01 99
IT.GNU.HGZ. 2024-04-11T19:32:41.66 0.6 undecidable manual S 265 12.5763 128 0 51
IV.ASSB.HHZ. 2024-04-11T19:32:41.59 0.1 negative manual P 348 25.9518 50 -0.03 98
IV.ARRO.EHZ. 2024-04-11T19:32:41.76 0.6 undecidable manual P 173 26.2515 50 0.08 49
IV.GAVE.EHZ. 2024-04-11T19:32:40.44 0.1 undecidable manual P 134 19.3695 117 0.01 100
IV.MOMA.HHZ. 2024-04-11T19:32:39.48 0.1 undecidable manual P 265 12.5763 128 0.18 98
IT.GNU.HGZ. 2024-04-11T19:32:39.47 0.1 undecidable manual P 265 12.5763 128 0.17 98
ZO.PDN12.EHZ. 2024-04-11T19:32:39.90 0.1 undecidable manual P 87 15.6732 123 0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HNN. ML:2.0 0.0010500000000000002 0.44 AML other m 2024-04-11T19:32:42.76
IV.MOMA.HHN. ML:2.0 0.001165 0.52 AML other m 2024-04-11T19:32:42.62
IV.MOMA.HHE. ML:2.1 0.0012799999999999999 0.88 AML other m 2024-04-11T19:32:43.58
IV.MOMA.HNE. ML:2.1 0.0013 0.88 AML other m 2024-04-11T19:32:43.14
IV.GAVE.EHE. ML:2.1 0.0010110000000000002 0.16 AML other m 2024-04-11T19:32:44.44
IV.GAVE.HNE. ML:2.1 0.0010135 0.14 AML other m 2024-04-11T19:32:44.43
IV.GAVE.EHN. ML:2.0 0.000775 0.82 AML other m 2024-04-11T19:32:45.53
IV.GAVE.HNN. ML:1.7 0.0003885 0.82 AML other m 2024-04-11T19:32:45.12
IV.CESI.HHN. ML:1.8 0.0003865 0.2 AML other m 2024-04-11T19:32:46.02
IV.ASSB.HHN. ML:1.8 0.0003795 0.78 AML other m 2024-04-11T19:32:46.80
IV.CESI.HHE. ML:1.6 0.000212 0.76 AML other m 2024-04-11T19:32:46.28
IV.CESX.HHE. ML:1.8 0.0003445 1.36 AML other m 2024-04-11T19:32:46.69
IV.CESX.HHN. ML:1.8 0.00036899999999999997 0.74 AML other m 2024-04-11T19:32:47.38
IV.ARRO.EHN. ML:1.4 0.0001515 0.18 AML other m 2024-04-11T19:32:48.41
IV.ASSB.HHE. ML:1.7 0.0002635 1.02 AML other m 2024-04-11T19:32:48.03
IV.NRCA.HHE. ML:1.7 0.000234 0.12 AML other m 2024-04-11T19:32:48.77
IV.ARRO.EHE. ML:1.5 0.0001825 0.52 AML other m 2024-04-11T19:32:49.03
IV.LNSS.HHE. ML:1.9 0.0002935 1.5 AML other m 2024-04-11T19:32:49.13
IV.NRCA.HHN. ML:1.6 0.00016999999999999999 1.12 AML other m 2024-04-11T19:32:49.04
IV.FDMO.HHN. ML:1.5 0.00011255 0.44 AML other m 2024-04-11T19:32:49.62
IV.FDMO.HHE. ML:1.6 0.0001375 0.2 AML other m 2024-04-11T19:32:50.15
IV.LNSS.HHN. ML:1.9 0.000306 0.94 AML other m 2024-04-11T19:32:50.87
IV.MMO1.EHN. ML:1.8 0.00015150000000000002 0.3 AML other m 2024-04-11T19:32:52.83
IV.CSP1.EHE. ML:2.2 0.0004055 0.3 AML other m 2024-04-11T19:32:53.63
IV.CSP1.EHN. ML:2.0 0.000291 0.86 AML other m 2024-04-11T19:32:53.36
IV.MMO1.EHE. ML:1.7 0.0001375 0.24 AML other m 2024-04-11T19:32:53.80
IV.FOSV.EHE. ML:1.3 0.0000506 1.08 AML other m 2024-04-11T19:32:54.06
IV.SNTG.HHN. ML:1.3 0.00004380000000000001 0.92 AML other m 2024-04-11T19:32:55.61
IV.SNTG.HHE. ML:1.3 0.0000434 1.48 AML other m 2024-04-11T19:32:55.21
IV.MGAB.HHE. ML:1.6 0.0000935 1.02 AML other m 2024-04-11T19:32:55.22
IV.SMA1.EHE. ML:1.7 0.00011815 0.4 AML other m 2024-04-11T19:32:55.37
IV.GUMA.HHE. ML:2.2 0.000388 1.08 AML other m 2024-04-11T19:32:55.68
IV.RM33.EHN. ML:1.6 0.00009329999999999999 1.34 AML other m 2024-04-11T19:32:56.23
IV.RM33.EHE. ML:1.5 0.00008525 0.22 AML other m 2024-04-11T19:32:56.77
IV.SMA1.EHN. ML:1.7 0.00011199999999999998 1.5 AML other m 2024-04-11T19:32:56.96
IV.MGAB.HHN. ML:1.5 0.00008049999999999999 1.14 AML other m 2024-04-11T19:32:56.41
IV.FOSV.EHN. ML:1.4 0.0000599 1.4 AML other m 2024-04-11T19:32:57.94
IV.GUMA.HHN. ML:2.1 0.00026700000000000004 1.52 AML other m 2024-04-11T19:32:58.91
IV.SSFR.HHE. ML:1.8 0.00011949999999999999 0.2 AML other m 2024-04-11T19:32:59.52
IV.CING.HHN. ML:1.4 0.0000376 0.8 AML other m 2024-04-11T19:32:59.13
IV.FIAM.HHN. ML:1.5 0.0000514 0.42 AML other m 2024-04-11T19:32:59.77
IV.SSFR.HHN. ML:1.7 0.0000861 0.22 AML other m 2024-04-11T19:33:02.26
IV.FRON.EHE. ML:1.4 0.0000361 0.46 AML other m 2024-04-11T19:33:02.15
IV.FRON.EHN. ML:1.6 0.000053 0.68 AML other m 2024-04-11T19:33:02.46
IV.CING.HHE. ML:1.5 0.000044 0.62 AML other m 2024-04-11T19:33:02.41
IV.FIAM.HHE. ML:1.5 0.00005270000000000001 0.48 AML other m 2024-04-11T19:33:03.72
IV.ARVD.HHN. ML:1.4 0.00003315 1.14 AML other m 2024-04-11T19:33:06.03
IV.ARVD.HHE. ML:1.2 0.00002735 0.88 AML other m 2024-04-11T19:33:07.26
IV.CAFI.HHN. ML:1.3 0.0000242 1.04 AML other m 2024-04-11T19:33:09.75
IV.CAFI.HHE. ML:1.3 0.0000268 1.46 AML other m 2024-04-11T19:33:11.26
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