Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 04-06-2023 and time 19:35:16 (UTC) in region 2 km S Sellano (PG)

A magnitude ML 0.5 earthquake occured in region: 2 km S Sellano (PG), on

  • 04-06-2023 19:35:16 (UTC)
  • 04-06-2023 21:35:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8730, 12.9300 at 14 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
Sellano PG 2 1079 1079
Cerreto di Spoleto PG 6 1075 2154
Preci PG 9 724 2878
Vallo di Nera PG 13 364 3242
Campello sul Clitunno PG 14 2442 5684
Visso MC 15 1107 6791
Monte Cavallo MC 15 145 6936
Trevi PG 15 8469 15405
Norcia PG 16 4957 20362
Sant'Anatolia di Narco PG 17 564 20926
Poggiodomo PG 18 117 21043
Castelsantangelo sul Nera MC 18 281 21324
Cascia PG 19 3217 24541
Ussita MC 19 444 24985
Scheggino PG 20 461 25446

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km E of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
51 Km SE of Perugia (166134 inhabitants)
68 Km W of Teramo (54892 inhabitants)
70 Km NW of L'Aquila (69753 inhabitants)
84 Km NE of Viterbo (67173 inhabitants)
96 Km SW of Ancona (100861 inhabitants)
98 Km N of Guidonia Montecelio (88673 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 0.5 2023-06-04
19:35:16		 42.8733 12.9298 14 2023-06-04
19:56:19		 Sala Sismica INGV-Roma 118110291
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-06-04 19:35:16 ± 0.08
Latitude 42.8733 ± 0.0036
Longitude 12.9298 ± 0.0061
Depth (km) 14 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 118110291

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 488
Semi-minor axis of confidence ellipse (meter) 232
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 238
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.29678
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 8
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.1
Num. used stations 6
Type of magnitude ML
Reference to an origin 118110291
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-06-04 19:56:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2023-06-04T19:35:46.98 3.0 undecidable manual Sn 0.77 0
IV.CSP1.EHZ. 2023-06-04T19:35:27.39 0.6 undecidable manual S 43 32.9448 97 0.02 49
7F.SIB3.EHN. 2023-06-04T19:35:26.02 0.6 undecidable manual S 90 27.6501 99 0.05 49
IV.ASSB.HHZ. 2023-06-04T19:35:26.27 0.6 undecidable manual S 311 28.9488 99 -0.03 49
IV.MML1.EHE. 2023-06-04T19:35:25.47 0.6 undecidable manual S 7 26.8509 100 -0.29 47
IV.GAVE.EHZ. 2023-06-04T19:35:23.77 0.6 undecidable manual S 188 20.2686 107 -0.28 47
IV.ASSB.HHZ. 2023-06-04T19:35:22.08 0.1 undecidable manual P 311 28.9488 99 0.09 97
IV.CESI.HHZ. 2023-06-04T19:35:22.57 0.6 undecidable manual S 352 14.7741 118 -0.11 49
IV.NRCA.HHZ. 2023-06-04T19:35:22.93 0.6 undecidable manual S 106 15.6732 116 0.04 50
IV.EL6.EHZ. 2023-06-04T19:35:21.35 3.0 negative manual P -3.5 0
IV.CSP1.EHZ. 2023-06-04T19:35:21.90 1.0 positive manual P 43 32.9448 97 -0.7 20
7F.SIB3.EHN. 2023-06-04T19:35:21.65 0.1 undecidable manual P 90 27.6501 99 -0.14 96
IV.MML1.EHE. 2023-06-04T19:35:21.91 0.1 undecidable manual P 7 26.8509 100 0.24 94
IV.GAVE.EHZ. 2023-06-04T19:35:20.77 0.1 undecidable manual P 188 20.2686 107 0.09 100
IV.FDMO.HHE. 2023-06-04T19:35:20.95 0.1 undecidable manual P 35 22.1556 104 -0.01 100
IV.CESI.HHZ. 2023-06-04T19:35:20.08 1.0 positive manual P 352 14.7741 118 0.19 24
IV.NRCA.HHZ. 2023-06-04T19:35:20.19 0.1 negative manual P 106 15.6732 116 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHN. ML:0.5 0.000026349999999999997 0.16 AML other m 2023-06-04T19:35:23.01
IV.NRCA.HHE. ML:0.4 0.000021499999999999997 0.62 AML other m 2023-06-04T19:35:23.10
IV.GAVE.EHE. ML:0.6 0.0000260378 0.1408 AML other m 2023-06-04T19:35:24.20
IV.GAVE.EHN. ML:0.5 0.000021150000000000002 0.44 AML other m 2023-06-04T19:35:24.83
IV.CESI.HHE. ML:0.2 0.000017012989999999997 0.0768 AML other m 2023-06-04T19:35:22.92
IV.CESI.HHN. ML:0.6 0.000033075444999999995 0.2048 AML other m 2023-06-04T19:35:22.85
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