Earthquake with magnitude of ML 0.5 on date 23-06-2023 and time 05:00:54 (Italy) in region 4 km E Valtopina (PG)

A magnitude ML 0.5 earthquake occured in region: 4 km E Valtopina (PG), on

  • 23-06-2023 03:00:54 (UTC)
  • 23-06-2023 05:00:54 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.0500, 12.8010 at 11 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Valtopina PG 4 1398 1398
Nocera Umbra PG 7 5839 7237
Spello PG 12 8645 15882
Serravalle di Chienti MC 13 1070 16952
Foligno PG 13 57155 74107
Assisi PG 15 28299 102406
Sefro MC 16 422 102828
Monte Cavallo MC 18 145 102973
Cannara PG 19 4305 107278
Fiuminata MC 19 1402 108680
Trevi PG 20 8469 117149

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km NE of Foligno (57155 inhabitants)
34 Km E of Perugia (166134 inhabitants)
56 Km N of Terni (111501 inhabitants)
86 Km NW of Teramo (54892 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
88 Km SE of Arezzo (99543 inhabitants)
90 Km S of Fano (60888 inhabitants)
90 Km NE of Viterbo (67173 inhabitants)
92 Km NW of L'Aquila (69753 inhabitants)
96 Km S of Pesaro (94582 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 2023-06-23
03:00:54
43.0498 12.801 11 2023-06-23
03:24:31
Sala Sismica INGV-Roma 118652481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-06-23 03:00:54 ± 0.05
Latitude 43.0498 ± 0.0036
Longitude 12.8010 ± 0.0025
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 118652481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 399
Semi-minor axis of confidence ellipse (meter) 191
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 2
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 133
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0.08813
Epicentral distance of station farthest from the epicenter (degree) 0.31476
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 118652481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-06-23 03:24:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2023-06-23T03:01:06.50 0.1 undecidable manual S 133 34.9428 50 -0.01 97
IV.NRCA.HHZ. 2023-06-23T03:01:01.40 0.1 undecidable manual P 133 34.9428 50 -0.07 96
IV.MML1.EHZ. 2023-06-23T03:01:01.04 0.1 undecidable manual S 63 15.5733 124 -0.06 99
IV.CESI.HHZ. 2023-06-23T03:00:59.52 0.1 undecidable manual S 121 9.7791 137 -0.06 100
IV.ATCC.EHZ. 2023-06-23T03:00:59.12 0.1 undecidable manual P 319 19.869 118 0.02 99
IV.ASSB.HHZ. 2023-06-23T03:00:59.92 0.1 undecidable manual S 266 11.5773 132 -0.1 99
IV.MML1.EHZ. 2023-06-23T03:00:58.38 0.1 undecidable manual P 63 15.5733 124 0.03 100
IV.ASSB.HHZ. 2023-06-23T03:00:57.81 0.1 undecidable manual P 266 11.5773 132 0.08 99
IV.CESI.HHZ. 2023-06-23T03:00:57.66 0.1 undecidable manual P 121 9.7791 137 0.19 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:0.4 0.000036750000000000006 0.22 AML other m 2023-06-23T03:01:00.13
IV.CESI.HHE. ML:0.2 0.000022199999999999998 0.28 AML other m 2023-06-23T03:01:00.19
IV.ASSB.HHE. ML:0.6 0.00003995 0.24 AML other m 2023-06-23T03:01:00.26
IV.ASSB.HHN. ML:0.6 0.00004765 0.08 AML other m 2023-06-23T03:01:00.29
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