Earthquake with magnitude of ML 0.7 on date 23-10-2023 and time 15:50:35 (Italy) in region 1 km NE Serra San Quirico (AN)

A magnitude ML 0.7 earthquake occured in region: 1 km NE Serra San Quirico (AN), on

  • 23-10-2023 13:50:35 (UTC)
  • 23-10-2023 15:50:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4560, 13.0250 at 18 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
Serra San Quirico AN 1 2850 2850
Mergo AN 2 1037 3887
Rosora AN 5 1985 5872
Castelplanio AN 6 3540 9412
Cupramontana AN 7 4756 14168
Poggio San Marcello AN 8 693 14861
Genga AN 8 1797 16658
Maiolati Spontini AN 8 6248 22906
Arcevia AN 9 4612 27518
Montecarotto AN 9 1987 29505
Monte Roberto AN 10 3061 32566
Serra de' Conti AN 10 3746 36312
Poggio San Vicino MC 10 246 36558
Castelbellino AN 11 4947 41505
Apiro MC 11 2280 43785
San Paolo di Jesi AN 12 933 44718
Staffolo AN 13 2253 46971
Sassoferrato AN 14 7285 54256
Barbara AN 14 1368 55624
Cerreto d'Esi AN 15 3817 59441
Fabriano AN 16 31480 90921
Ostra Vetere AN 17 3311 94232
Castelleone di Suasa AN 17 1676 95908
San Lorenzo in Campo PU 18 3414 99322
Cingoli MC 18 10352 109674
Belvedere Ostrense AN 18 2234 111908
Jesi AN 19 40399 152307
Pergola PU 19 6333 158640

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km S of Fano (60888 inhabitants)
44 Km W of Ancona (100861 inhabitants)
51 Km S of Pesaro (94582 inhabitants)
61 Km NE of Foligno (57155 inhabitants)
64 Km NE of Perugia (166134 inhabitants)
77 Km SE of Rimini (147750 inhabitants)
92 Km E of Arezzo (99543 inhabitants)
98 Km SE of Cesena (96758 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 0.7 2023-10-23
13:50:35
43.4555 13.0253 18 2023-10-23
13:56:11
Sala Sismica INGV-Roma 122310881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-10-23 13:50:35 ± 0.48
Latitude 43.4555 ± 0.0279
Longitude 13.0253 ± 0.0285
Depth (km) 18 ± 4 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 122310881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3210
Semi-minor axis of confidence ellipse (meter) 1821
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 33
Circular confidence region, given by single value of horizontal uncertainty (meter) 3210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 171
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.49
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.62503
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 122310881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-10-23 13:56:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.VCEL.EHZ. 2023-10-23T13:51:05.15 3.0 undecidable manual Sn -0.16 0
IV.NRCA.HHZ. 2023-10-23T13:50:57.60 3.0 undecidable manual S 69.375 0.57 0
IV.CSP1.EHZ. 2023-10-23T13:50:50.78 0.3 undecidable manual S 160 42.8238 102 0.73 61
IV.MF5.EHZ. 2023-10-23T13:50:48.43 1.0 negative manual P 146 62.6928 98 1.33 14
IV.MPAG.EHZ. 2023-10-23T13:50:46.81 0.3 undecidable manual S 312 28.749 111 0.37 67
IV.FRON.EHZ. 2023-10-23T13:50:45.60 0.3 undecidable manual S 286 25.0527 115 0.07 73
IV.NRCA.HHZ. 2023-10-23T13:50:43.16 3.0 negative manual P 69.375 -4.97 0
IV.CING.HHZ. 2023-10-23T13:50:43.69 0.3 undecidable manual S 123 16.2726 129 0.16 74
IV.CSP1.EHZ. 2023-10-23T13:50:42.82 0.1 undecidable manual P 160 42.8238 102 -1.27 60
IV.FRON.EHZ. 2023-10-23T13:50:41.50 0.1 undecidable manual P 286 25.0527 115 0.02 98
IV.ARVD.HHZ. 2023-10-23T13:50:41.77 0.6 undecidable manual S 305 8.2806 151 -0.37 47
IV.MPAG.EHZ. 2023-10-23T13:50:41.98 0.3 undecidable manual P 312 28.749 111 -0.03 73
IV.CING.HHZ. 2023-10-23T13:50:40.39 0.1 undecidable manual P 123 16.2726 129 0.06 100
IV.ARVD.HHZ. 2023-10-23T13:50:39.35 0.1 undecidable manual P 305 8.2806 151 -0.17 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ARVD.HHN. ML:0.5 0.00002915 1.48 AML other m 2023-10-23T13:50:42.01
IV.ARVD.HHE. ML:0.6 0.000032550000000000005 0.18 AML other m 2023-10-23T13:50:43.10
IV.FRON.EHE. ML:0.7 0.00002405 0.28 AML other m 2023-10-23T13:50:45.83
IV.FRON.EHN. ML:0.8 0.000032600000000000006 1.34 AML other m 2023-10-23T13:50:46.30
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