Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 30-09-2023 and time 05:34:05 (UTC) in region 7 km NW Sellano (PG)

A magnitude ML 1.0 earthquake occured in region: 7 km NW Sellano (PG), on

  • 30-09-2023 05:34:05 (UTC)
  • 30-09-2023 07:34:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9440, 12.8850 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sellano PG 7 1079 1079
Monte Cavallo MC 11 145 1224
Trevi PG 13 8469 9693
Cerreto di Spoleto PG 14 1075 10768
Preci PG 15 724 11492
Foligno PG 15 57155 68647
Serravalle di Chienti MC 15 1070 69717
Campello sul Clitunno PG 16 2442 72159
Valtopina PG 17 1398 73557
Visso MC 17 1107 74664
Pieve Torina MC 18 1458 76122
Spello PG 18 8645 84767
Vallo di Nera PG 19 364 85131
Montefalco PG 20 5679 90810
Fiordimonte MC 20 202 91012

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km E of Foligno (57155 inhabitants)
44 Km E of Perugia (166134 inhabitants)
47 Km NE of Terni (111501 inhabitants)
74 Km W of Teramo (54892 inhabitants)
78 Km NW of L'Aquila (69753 inhabitants)
87 Km NE of Viterbo (67173 inhabitants)
91 Km SW of Ancona (100861 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 1.0 2023-09-30
05:34:05		 42.9442 12.8853 10 2023-09-30
05:41:08		 Sala Sismica INGV-Roma 121604551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-09-30 05:34:05 ± 0.06
Latitude 42.9442 ± 0.0045
Longitude 12.8853 ± 0.0049
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 121604551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 415
Semi-minor axis of confidence ellipse (meter) 369
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 346
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) 72
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
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 21
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 121604551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-09-30 05:41:08
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.BERNI.HHZ. 2023-09-30T05:35:50.43 3.0 undecidable manual Sn -0.71 0
OX.CIMO.HHZ. 2023-09-30T05:35:27.71 3.0 undecidable manual Sn -7.39 0
7C.SPAOL.HHZ. 2023-09-30T05:35:21.71 3.0 negative manual Pn -4.57 0
IX.SSB3.HHZ.02 2023-09-30T05:35:19.45 3.0 undecidable manual Sg 3.68 0
IV.ECTS.HHZ. 2023-09-30T05:35:15.86 3.0 undecidable manual Pn -6.21 0
IV.GRI.EHZ. 2023-09-30T05:35:11.24 3.0 negative manual Pn -4.91 0
IV.MGR.HHZ. 2023-09-30T05:34:54.31 3.0 undecidable manual Pn -1.68 0
IV.SACR.HHZ. 2023-09-30T05:34:40.49 3.0 undecidable manual Pg 3.65 0
IV.BRSN.HNZ. 2023-09-30T05:34:26.25 3.0 undecidable manual Pn -2.08 0
IV.SFI.EHZ. 2023-09-30T05:34:23.46 3.0 undecidable manual P -1.71 0
IV.MF5.EHZ. 2023-09-30T05:34:21.19 0.3 undecidable manual S 84 46.9197 50 0.79 59
IV.MMO1.EHZ. 2023-09-30T05:34:17.38 0.3 undecidable manual S 98 36.2415 50 -0.18 72
IV.MOMA.HHZ. 2023-09-30T05:34:15.92 0.3 undecidable manual S 239 29.9478 50 0.02 75
IV.CSP1.EHZ. 2023-09-30T05:34:15.83 0.3 undecidable manual S 58 30.6471 50 -0.25 71
IV.MF5.EHZ. 2023-09-30T05:34:14.25 0.3 undecidable manual P 84 46.9197 50 0.32 68
IV.ASSB.HHZ. 2023-09-30T05:34:13.04 0.3 undecidable manual S 301 21.3675 114 -0.18 74
IV.NRCA.HHZ. 2023-09-30T05:34:13.46 0.3 undecidable manual S 123 22.2555 113 -0.04 76
IV.LNSS.HNN. 2023-09-30T05:34:12.73 0.1 undecidable manual P 162 39.9267 50 -0.13 96
IV.MML1.EHZ. 2023-09-30T05:34:12.81 0.3 undecidable manual S 20 20.0688 115 0.02 76
IV.MMO1.EHZ. 2023-09-30T05:34:12.11 0.3 undecidable manual P 98 36.2415 50 -0.18 72
IV.FDMO.HHZ. 2023-09-30T05:34:12.27 0.3 undecidable manual S 58 19.3695 116 -0.29 72
IV.GAVE.HNE. 2023-09-30T05:34:11.09 0.1 undecidable manual P 179 27.9498 109 0.08 99
IV.CSP1.EHZ. 2023-09-30T05:34:11.22 0.1 undecidable manual P 58 30.6471 50 -0.21 96
IV.MOMA.HHZ. 2023-09-30T05:34:11.33 0.3 undecidable manual P 239 29.9478 50 0 75
IV.FDMO.HHZ. 2023-09-30T05:34:09.30 0.1 undecidable manual P 58 19.3695 116 -0.1 100
IV.ASSB.HHZ. 2023-09-30T05:34:09.77 0.3 undecidable manual P 301 21.3675 114 -0.01 76
IV.CESI.HHZ. 2023-09-30T05:34:09.21 0.3 undecidable manual S 13 6.8931 144 0.04 78
IV.NRCA.HHZ. 2023-09-30T05:34:09.88 0.3 undecidable manual P 123 22.2555 113 -0.06 75
IV.MML1.EHZ. 2023-09-30T05:34:09.84 0.3 undecidable manual P 20 20.0688 115 0.3 72
IV.CESI.HHZ. 2023-09-30T05:34:07.71 0.1 undecidable manual P 13 6.8931 144 0.26 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.1 0.0001975 0.38 AML other m 2023-09-30T05:34:09.30
IV.CESI.HHE. ML:1.0 0.00016450000000000001 0.42 AML other m 2023-09-30T05:34:09.30
IV.FDMO.HHE. ML:1.0 0.0000692 0.3 AML other m 2023-09-30T05:34:12.47
IV.FDMO.HHN. ML:0.8 0.00004910000000000001 0.88 AML other m 2023-09-30T05:34:12.47
IV.ASSB.HHN. ML:1.1 0.00009715 0.18 AML other m 2023-09-30T05:34:13.34
IV.ASSB.HHE. ML:0.9 0.00005624999999999999 0.5 AML other m 2023-09-30T05:34:13.29
IV.NRCA.HHN. ML:1.2 0.0000987 0.1 AML other m 2023-09-30T05:34:13.61
IV.NRCA.HHE. ML:1.1 0.00008405 0.58 AML other m 2023-09-30T05:34:13.82
IV.MML1.EHE. ML:0.5 0.000027300000000000003 1.28 AML other m 2023-09-30T05:34:13.25
IV.MML1.EHN. ML:0.7 0.000038150000000000006 0.42 AML other m 2023-09-30T05:34:14.63
IV.CSP1.EHN. ML:1.2 0.00008335 1.4 AML other m 2023-09-30T05:34:16.28
IV.CSP1.EHE. ML:1.2 0.00008225000000000001 0.98 AML other m 2023-09-30T05:34:17.64
IV.MMO1.EHE. ML:1.2 0.0000575 0.36 AML other m 2023-09-30T05:34:17.43
IV.MMO1.EHN. ML:1.1 0.00004465 0.68 AML other m 2023-09-30T05:34:17.79
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