Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.0 on date 17-08-2023 and time 22:45:47 (Italy) in region 4 km S Serra Sant'Abbondio (PU)

A magnitude ML 1.0 earthquake occured in region: 4 km S Serra Sant'Abbondio (PU), on

  • 17-08-2023 20:45:47 (UTC)
  • 17-08-2023 22:45:47 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4610, 12.7600 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
Serra Sant'Abbondio PU 4 1027 1027
Frontone PU 6 1300 2327
Sassoferrato AN 8 7285 9612
Scheggia e Pascelupo PG 10 1393 11005
Cantiano PU 11 2245 13250
Costacciaro PG 12 1216 14466
Pergola PU 13 6333 20799
Cagli PU 13 8731 29530
Sigillo PG 14 2404 31934
Genga AN 15 1797 33731
Arcevia AN 15 4612 38343
Fabriano AN 18 31480 69823
Fossato di Vico PG 18 2840 72663
Gubbio PG 19 32216 104879
Acqualagna PU 19 4393 109272

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km SW of Fano (60888 inhabitants)
49 Km NE of Perugia (166134 inhabitants)
52 Km S of Pesaro (94582 inhabitants)
56 Km N of Foligno (57155 inhabitants)
64 Km W of Ancona (100861 inhabitants)
69 Km S of Rimini (147750 inhabitants)
71 Km E of Arezzo (99543 inhabitants)
86 Km SE of Cesena (96758 inhabitants)
100 Km N of Terni (111501 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 2023-08-17
20:45:47		 43.4607 12.7603 14 2023-08-17
21:02:14		 Sala Sismica INGV-Roma 120233041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-17 20:45:47 ± 0.05
Latitude 43.4607 ± 0.0018
Longitude 12.7603 ± 0.0050
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120233041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 320
Semi-minor axis of confidence ellipse (meter) 211
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 254
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 139
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.49013
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 120233041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-17 21:02:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2023-08-17T20:46:11.88 3.0 undecidable manual S -0.11 0
IV.CSP1.EHZ. 2023-08-17T20:46:05.15 1.0 undecidable manual S 139 54.4011 94 0.21 22
IV.NRCA.HHZ. 2023-08-17T20:46:00.75 3.0 undecidable manual P 0
IV.MURB.HHZ. 2023-08-17T20:45:58.50 0.6 undecidable manual S 221 29.0487 99 0.31 46
IV.CSP1.EHZ. 2023-08-17T20:45:57.88 1.0 undecidable manual P 139 54.4011 94 0.13 23
IV.SNTG.HHZ. 2023-08-17T20:45:57.52 0.6 undecidable manual S 147 27.0507 100 -0.15 47
IV.NARO.HHZ. 2023-08-17T20:45:56.43 0.6 undecidable manual S 319 22.0668 105 0.05 48
IV.ASSB.HHZ. 2023-08-17T20:45:56.77 3.0 positive manual P 0.02 0
IV.FOSV.EHZ. 2023-08-17T20:45:55.23 0.6 undecidable manual S 180 18.3705 110 -0.21 47
IV.PIEI.HHZ. 2023-08-17T20:45:55.67 0.6 undecidable manual S 295 19.9689 108 -0.16 47
IV.MPAG.EHZ. 2023-08-17T20:45:55.48 0.6 undecidable manual S 360 18.6702 110 -0.04 49
IV.ATCC.EHZ. 2023-08-17T20:45:54.33 3.0 positive manual P 0 0
IV.MURB.HHZ. 2023-08-17T20:45:54.03 0.6 negative manual P 221 29.0487 99 0.17 47
IV.SNTG.HHZ. 2023-08-17T20:45:53.50 0.6 undecidable manual P 147 27.0507 100 -0.06 48
IV.ATPI.EHZ. 2023-08-17T20:45:53.94 3.0 positive manual P 0.02 0
IV.FRON.EHZ. 2023-08-17T20:45:53.03 0.6 undecidable manual S 336 6.8931 146 0.02 50
IV.MPAG.EHZ. 2023-08-17T20:45:52.33 0.3 negative manual P 360 18.6702 110 0.01 73
IV.FOSV.EHZ. 2023-08-17T20:45:52.11 1.0 undecidable manual P 180 18.3705 110 -0.16 24
IV.SSFR.HHZ. 2023-08-17T20:45:52.60 0.6 undecidable manual S 147 3.1968 164 0.01 50
IV.PIEI.HHZ. 2023-08-17T20:45:52.36 1.0 undecidable manual P 295 19.9689 108 -0.14 24
IV.ATFO.HHZ. 2023-08-17T20:45:52.32 3.0 positive manual P 0 0
IV.NARO.HHZ. 2023-08-17T20:45:52.77 0.1 undecidable manual P 319 22.0668 105 -0.04 97
IV.FRON.EHZ. 2023-08-17T20:45:50.95 0.6 undecidable manual P 336 6.8931 146 0.09 49
IV.SSFR.HHZ. 2023-08-17T20:45:50.65 0.1 undecidable manual P 147 3.1968 164 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HNE. ML:1.6 0.0005024999999999999 0.14 AML other m 2023-08-17T20:45:52.68
IV.SSFR.HHE. ML:1.4 0.000357 0.12 AML other m 2023-08-17T20:45:52.74
IV.SSFR.HNN. ML:1.6 0.0005495 0.34 AML other m 2023-08-17T20:45:52.92
IV.SSFR.HHN. ML:1.5 0.00038700000000000003 0.7 AML other m 2023-08-17T20:45:52.92
IV.FRON.EHE. ML:0.8 0.0000814 0.96 AML other m 2023-08-17T20:45:53.08
IV.FRON.EHN. ML:1.0 0.000125 0.3 AML other m 2023-08-17T20:45:53.20
IV.FOSV.EHE. ML:0.6 0.000030050000000000002 0.24 AML other m 2023-08-17T20:45:55.43
IV.FOSV.EHN. ML:0.8 0.00003800000000000001 0.08 AML other m 2023-08-17T20:45:55.41
IV.MPAG.EHE. ML:1.2 0.00012095 0.08 AML other m 2023-08-17T20:45:55.75
IV.MPAG.EHN. ML:0.9 0.00005555 0.24 AML other m 2023-08-17T20:45:55.82
IV.PIEI.HHN. ML:0.8 0.000045600000000000004 0.24 AML other m 2023-08-17T20:45:55.94
IV.PIEI.HHE. ML:1.1 0.00008350000000000001 0.1 AML other m 2023-08-17T20:45:56.02
IV.NARO.HHE. ML:0.8 0.0000331 1.28 AML other m 2023-08-17T20:45:57.67
IV.NARO.HHN. ML:0.5 0.00002145 0.32 AML other m 2023-08-17T20:45:57.82
IV.MURB.HHE. ML:1.1 0.00006555 1.66 AML other m 2023-08-17T20:45:59.16
IV.MURB.HHN. ML:1.2 0.00008365 1.5 AML other m 2023-08-17T20:45:59.22
IV.SNTG.HHN. ML:0.5 0.00001285 0.24 AML other m 2023-08-17T20:45:59.54
IV.SNTG.HHE. ML:0.3 0.000011845 0.08 AML other m 2023-08-17T20:45:59.92
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