Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 11-04-2024 and time 09:23:52 (UTC) in region 5 km SE Cascia (PG)

A magnitude ML 1.1 earthquake occured in region: 5 km SE Cascia (PG), on

  • 11-04-2024 09:23:52 (UTC)
  • 11-04-2024 11:23:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6810, 13.0350 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
Cascia PG 5 3217 3217
Monteleone di Spoleto PG 8 599 3816
Poggiodomo PG 9 117 3933
Cittareale RI 12 482 4415
Norcia PG 13 4957 9372
Leonessa RI 14 2435 11807
Scheggino PG 17 461 12268
Sant'Anatolia di Narco PG 17 564 12832
Vallo di Nera PG 17 364 13196
Accumoli RI 18 667 13863
Posta RI 18 694 14557
Cerreto di Spoleto PG 18 1075 15632
Polino TR 19 233 15865

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Terni (111501 inhabitants)
41 Km SE of Foligno (57155 inhabitants)
47 Km NW of L'Aquila (69753 inhabitants)
55 Km W of Teramo (54892 inhabitants)
71 Km SE of Perugia (166134 inhabitants)
80 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km E of Viterbo (67173 inhabitants)
82 Km N of Tivoli (56533 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
99 Km NE of Roma (2864731 inhabitants)
100 Km W of Pescara (121014 inhabitants)
100 Km W of Chieti (51815 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 1.1 2024-04-11
09:23:52		 42.6813 13.0348 10 2024-04-11
09:32:52		 Sala Sismica INGV-Roma 126642441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-11 09:23:52 ± 0.07
Latitude 42.6813 ± 0.0036
Longitude 13.0348 ± 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 126642441

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 424
Semi-minor axis of confidence ellipse (meter) 338
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 232
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42268
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 126642441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-11 09:32:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RIBO.EHZ.01 2024-04-11T09:24:21.22 3.0 undecidable manual Sn -0.16 0
IV.TERO.HHZ. 2024-04-11T09:24:07.04 0.6 undecidable manual S 98 46.9197 50 -0.22 45
7F.SIB2.EHE. 2024-04-11T09:24:03.16 0.6 undecidable manual S 43 31.9458 50 -0.11 47
7F.SIB1.EHE. 2024-04-11T09:24:02.99 0.3 undecidable manual S 39 30.4473 50 0.12 72
IV.RM33.EHZ. 2024-04-11T09:24:01.10 0.3 undecidable manual S 142 24.0537 113 -0.05 73
IV.SMA1.EHZ. 2024-04-11T09:24:01.67 0.3 undecidable manual S 103 25.1526 50 0.21 67
IV.TERO.HHZ. 2024-04-11T09:24:00.63 0.3 undecidable manual P 98 46.9197 50 -0.22 67
IV.SSFR.HHZ. 2024-04-11T09:24:00.05 3.0 undecidable manual Pn -0.02 0
IV.NRCA.HHZ. 2024-04-11T09:23:59.00 0.3 undecidable manual S 21 18.0708 119 -0.26 74
7F.SIB1.EHE. 2024-04-11T09:23:58.49 0.1 undecidable manual P 39 30.4473 50 0.18 95
7F.SIB2.EHE. 2024-04-11T09:23:58.41 0.3 undecidable manual P 43 31.9458 50 -0.13 70
IV.RM33.EHZ. 2024-04-11T09:23:57.25 0.1 undecidable manual P 142 24.0537 113 -0.07 98
IV.GAVE.EHZ. 2024-04-11T09:23:57.44 0.3 undecidable manual S 276 11.5773 131 0.04 75
IV.SMA1.EHZ. 2024-04-11T09:23:57.79 0.1 undecidable manual P 103 25.1526 50 0.29 90
IV.NRCA.HHZ. 2024-04-11T09:23:56.23 0.1 undecidable manual P 21 18.0708 119 0 97
IV.LNSS.HHZ. 2024-04-11T09:23:56.28 0.6 undecidable manual S 177 8.6802 139 -0.43 47
IV.GAVE.EHZ. 2024-04-11T09:23:55.21 0.1 undecidable manual P 276 11.5773 131 0.06 100
IV.LNSS.HHZ. 2024-04-11T09:23:54.90 0.3 undecidable manual P 177 8.6802 139 0.14 73
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.1 0.00018446785 0.18 AML other m 2024-04-11T09:23:57.21
IV.LNSS.HHE. ML:1.2 0.0001969334 0.16 AML other m 2024-04-11T09:23:56.61
IV.GAVE.EHN. ML:1.0 0.00010935175 0.22 AML other m 2024-04-11T09:23:57.48
IV.GAVE.EHE. ML:0.9 0.00009155708 0.08 AML other m 2024-04-11T09:23:57.84
IV.NRCA.HHN. ML:1.1 0.00010139999999999998 0.14 AML other m 2024-04-11T09:23:59.28
IV.NRCA.HHE. ML:1.2 0.0001225 0.68 AML other m 2024-04-11T09:23:59.27
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