Earthquake with magnitude of ML 0.5 on date 30-08-2023 and time 18:59:16 (UTC) in region 5 km SW Sefro (MC)

A magnitude ML 0.5 earthquake occured in region: 5 km SW Sefro (MC), on

  • 30-08-2023 18:59:16 (UTC)
  • 30-08-2023 20:59:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1130, 12.9060 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Sefro MC 5 422 422
Serravalle di Chienti MC 6 1070 1492
Fiuminata MC 9 1402 2894
Nocera Umbra PG 9 5839 8733
Pioraco MC 10 1134 9867
Muccia MC 12 915 10782
Camerino MC 13 6974 17756
Valtopina PG 14 1398 19154
Pieve Torina MC 14 1458 20612
Monte Cavallo MC 15 145 20757
Pievebovigliana MC 16 866 21623
Esanatoglia MC 16 2034 23657
Gualdo Tadino PG 16 15208 38865
Castelraimondo MC 16 4587 43452
Fiordimonte MC 17 202 43654
Matelica MC 18 9981 53635
Gagliole MC 19 620 54255

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Foligno (57155 inhabitants)
42 Km E of Perugia (166134 inhabitants)
65 Km NE of Terni (111501 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
82 Km S of Fano (60888 inhabitants)
82 Km NW of Teramo (54892 inhabitants)
89 Km S of Pesaro (94582 inhabitants)
92 Km E of Arezzo (99543 inhabitants)
94 Km NW of L'Aquila (69753 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 2023-08-30
18:59:16
43.1133 12.9065 10 2023-08-30
19:13:22
Sala Sismica INGV-Roma 120619621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-30 18:59:16 ± 0.11
Latitude 43.1133 ± 0.0036
Longitude 12.9065 ± 0.0074
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 120619621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 650
Semi-minor axis of confidence ellipse (meter) 377
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 265
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 189
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.31836
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 120619621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-30 19:13:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CADA.HNZ. 2023-08-30T18:59:37.18 3.0 undecidable manual S 0.13 0
IV.SACS.HHZ. 2023-08-30T18:59:29.10 3.0 undecidable manual P -0.16 0
IV.NRCA.HHZ. 2023-08-30T18:59:27.96 0.3 undecidable manual S 151 35.3424 50 -0.18 70
IV.MC2.EHZ. 2023-08-30T18:59:27.75 0.3 undecidable manual S 134 32.0457 50 0.48 66
IV.CSP1.EHZ. 2023-08-30T18:59:25.23 0.3 undecidable manual S 96 24.2535 113 0.06 73
IV.SNTG.HHZ. 2023-08-30T18:59:22.47 0.3 undecidable manual S 10 15.9729 122 -0.12 74
IV.FDMO.HHZ. 2023-08-30T18:59:22.64 0.3 undecidable manual S 120 16.9719 121 -0.24 72
IV.NRCA.HHZ. 2023-08-30T18:59:22.92 0.3 undecidable manual P 151 35.3424 50 -0.11 71
IV.MC2.EHZ. 2023-08-30T18:59:22.19 0.6 undecidable manual P 134 32.0457 50 -0.34 46
IV.CESI.HNZ. 2023-08-30T18:59:21.42 0.3 undecidable manual S 181 11.9769 130 -0.06 75
IV.ATCC.EHZ. 2023-08-30T18:59:21.15 3.0 undecidable manual P 0.24 0
IV.CSP1.EHZ. 2023-08-30T18:59:21.14 0.3 undecidable manual P 96 24.2535 113 -0.17 72
IV.ASSB.HHZ. 2023-08-30T18:59:20.75 3.0 positive manual P 0.45 0
IV.FDMO.HHZ. 2023-08-30T18:59:20.01 0.3 undecidable manual P 120 16.9719 121 0.02 75
IV.MML1.EHZ. 2023-08-30T18:59:20.07 0.3 undecidable manual S 90 5.2947 152 0.08 76
IV.CESI.HNZ. 2023-08-30T18:59:19.27 0.1 undecidable manual P 181 11.9769 130 0.09 99
IV.SNTG.HHZ. 2023-08-30T18:59:19.85 0.1 undecidable manual P 10 15.9729 122 0.03 100
IV.MML1.EHZ. 2023-08-30T18:59:18.54 0.1 undecidable manual P 90 5.2947 152 0.22 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MML1.EHE. ML:0.6 0.00006065 0.14 AML other m 2023-08-30T18:59:20.22
IV.MML1.EHN. ML:0.5 0.000047600000000000005 0.4 AML other m 2023-08-30T18:59:20.23
IV.SNTG.HHE. ML:0.2 0.000014668650500000002 0.064 AML other m 2023-08-30T18:59:23.54
IV.SNTG.HHN. ML:0.2 0.00001539971 0.1408 AML other m 2023-08-30T18:59:23.45
IV.FDMO.HHE. ML:0.5 0.000022842505 0.2048 AML other m 2023-08-30T18:59:22.92
IV.FDMO.HHN. ML:0.5 0.000023312525 0.2176 AML other m 2023-08-30T18:59:23.04
IV.NRCA.HHE. ML:0.6 0.000015454417999999998 0.1408 AML other m 2023-08-30T18:59:28.15
IV.NRCA.HHN. ML:0.6 0.000015677088 0.1024 AML other m 2023-08-30T18:59:28.79
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