Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 01-04-2024 and time 17:31:05 (Italy) in region 3 km NW Giano dell'Umbria (PG)

A magnitude ML 0.9 earthquake occured in region: 3 km NW Giano dell'Umbria (PG), on

  • 01-04-2024 15:31:05 (UTC)
  • 01-04-2024 17:31:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8560, 12.5480 at 8 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
Giano dell'Umbria PG 3 3846 3846
Gualdo Cattaneo PG 6 6155 10001
Massa Martana PG 9 3770 13771
Montefalco PG 10 5679 19450
Collazzone PG 10 3473 22923
Bevagna PG 10 5081 28004
Castel Ritaldi PG 11 3278 31282
Todi PG 14 16851 48133
Fratta Todina PG 15 1839 49972
Cannara PG 16 4305 54277
Monte Castello di Vibio PG 16 1567 55844
Trevi PG 17 8469 64313
Foligno PG 17 57155 121468
Deruta PG 18 9669 131137
Marsciano PG 18 18902 150039
Spello PG 18 8645 158684
Acquasparta TR 18 4778 163462
Bettona PG 18 4367 167829
Campello sul Clitunno PG 19 2442 170271

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km SW of Foligno (57155 inhabitants)
31 Km SE of Perugia (166134 inhabitants)
34 Km N of Terni (111501 inhabitants)
61 Km NE of Viterbo (67173 inhabitants)
87 Km SE of Arezzo (99543 inhabitants)
89 Km NW of L'Aquila (69753 inhabitants)
96 Km N of Guidonia Montecelio (88673 inhabitants)
97 Km W of Teramo (54892 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 0.9 2024-04-01
15:31:05		 42.8562 12.5483 8 2024-04-01
15:46:18		 Sala Sismica INGV-Roma 126375421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-01 15:31:05 ± 0.11
Latitude 42.8562 ± 0.0063
Longitude 12.5483 ± 0.0135
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126375421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1170
Semi-minor axis of confidence ellipse (meter) 558
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 117
Circular confidence region, given by single value of horizontal uncertainty (meter) 1170.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.05486
Epicentral distance of station farthest from the epicenter (degree) 0.33545
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 126375421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-01 15:46:18
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2024-04-01T15:31:18.64 0.6 undecidable manual S 11 37.2294 50 -0.03 47
IV.CESI.HHZ. 2024-04-01T15:31:17.49 0.6 undecidable manual S 60 33.3444 103 0.06 47
IV.CESX.HHZ. 2024-04-01T15:31:15.38 1.0 undecidable manual S 173 27.6501 106 -0.16 23
IV.ASSB.HHZ. 2024-04-01T15:31:14.19 0.3 undecidable manual S 23 22.5552 109 0.35 68
IV.GAVE.HNE. 2024-04-01T15:31:13.03 0.3 undecidable manual P 123 33.5442 103 0.57 63
IV.MGAB.HHZ. 2024-04-01T15:31:13.26 0.3 undecidable manual P 280 36.0417 50 0.32 67
IV.CESI.HHZ. 2024-04-01T15:31:12.07 0.3 undecidable manual P 60 33.3444 103 -0.34 67
IV.ATCC.EHZ. 2024-04-01T15:31:12.56 0.3 undecidable manual P 11 37.2294 50 -0.57 62
IV.CESX.HHZ. 2024-04-01T15:31:11.44 0.6 undecidable manual P 173 27.6501 106 0.12 47
IV.ASSB.HHZ. 2024-04-01T15:31:10.31 0.1 undecidable manual P 23 22.5552 109 -0.03 97
IV.MOMA.HHZ. 2024-04-01T15:31:08.82 0.3 undecidable manual S 163 6.0939 142 -0.18 72
IT.GNU.HGZ. 2024-04-01T15:31:08.96 0.3 undecidable manual S 163 6.0939 142 -0.04 75
IV.MOMA.HHZ. 2024-04-01T15:31:07.47 0.1 undecidable manual P 163 6.0939 142 -0.08 99
IT.GNU.HGZ. 2024-04-01T15:31:07.56 0.1 undecidable manual P 163 6.0939 142 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HNN. ML:1.7 0.0008238805 0.13 AML other m 2024-04-01T15:31:09.47
IV.MOMA.HHE. ML:1.8 0.001103897 0.16 AML other m 2024-04-01T15:31:09.53
IV.MOMA.HHN. ML:1.6 0.000741 0.14 AML other m 2024-04-01T15:31:09.40
IV.MOMA.HNE. ML:1.8 0.0010129172 0.13 AML other m 2024-04-01T15:31:09.10
IV.ASSB.HHN. ML:0.9 0.00005114562500000001 0.12 AML other m 2024-04-01T15:31:14.78
IV.ASSB.HHE. ML:0.9 0.00005079495 0.4 AML other m 2024-04-01T15:31:14.32
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