Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 20-02-2024 and time 01:46:10 (UTC) in region 2 km SE Arcevia (AN)

A magnitude ML 0.9 earthquake occured in region: 2 km SE Arcevia (AN), on

  • 20-02-2024 01:46:10 (UTC)
  • 20-02-2024 02:46:10 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4840, 12.9560 at 44 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
Arcevia AN 2 4612 4612
Serra San Quirico AN 6 2850 7462
Genga AN 6 1797 9259
Mergo AN 7 1037 10296
Rosora AN 9 1985 12281
Serra de' Conti AN 9 3746 16027
Sassoferrato AN 9 7285 23312
Montecarotto AN 10 1987 25299
Castelplanio AN 10 3540 28839
Poggio San Marcello AN 10 693 29532
Barbara AN 12 1368 30900
Pergola PU 13 6333 37233
Maiolati Spontini AN 13 6248 43481
San Lorenzo in Campo PU 13 3414 46895
Cupramontana AN 14 4756 51651
Castelleone di Suasa AN 14 1676 53327
Monte Roberto AN 15 3061 56388
Serra Sant'Abbondio PU 15 1027 57415
Castelbellino AN 15 4947 62362
Ostra Vetere AN 16 3311 65673
Poggio San Vicino MC 16 246 65919
Fabriano AN 17 31480 97399
Fratte Rosa PU 17 966 98365
Apiro MC 17 2280 100645
Frontone PU 18 1300 101945
San Paolo di Jesi AN 18 933 102878
Cerreto d'Esi AN 18 3817 106695
Staffolo AN 20 2253 108948
Corinaldo AN 20 4998 113946

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km S of Fano (60888 inhabitants)
48 Km S of Pesaro (94582 inhabitants)
48 Km W of Ancona (100861 inhabitants)
62 Km NE of Foligno (57155 inhabitants)
62 Km NE of Perugia (166134 inhabitants)
71 Km SE of Rimini (147750 inhabitants)
87 Km E of Arezzo (99543 inhabitants)
93 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 0.9 2024-02-20
01:46:10		 43.4845 12.9565 44 2024-02-20
01:52:33		 Sala Sismica INGV-Roma 125384481
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-20 01:46:10 ± 0.21
Latitude 43.4845 ± 0.0090
Longitude 12.9565 ± 0.0124
Depth (km) 44 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 125384481

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1024
Semi-minor axis of confidence ellipse (meter) 419
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 47
Circular confidence region, given by single value of horizontal uncertainty (meter) 1020.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 110
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.01709
Epicentral distance of station farthest from the epicenter (degree) 0.41189
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 125384481
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-20 01:52:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PIEI.HHZ. 2024-02-20T01:46:26.20 0.3 undecidable manual S 280 34.3434 130 0.4 68
IV.NARO.HHZ. 2024-02-20T01:46:25.80 0.3 undecidable manual S 295 33.3444 131 0.18 72
IV.CING.HHN. 2024-02-20T01:46:24.41 0.3 undecidable manual S 122 22.755 145 0.32 71
IV.EL6.EHE. 2024-02-20T01:46:24.11 0.3 undecidable manual S 146 20.868 147 0.25 72
IV.SNTG.HNN. 2024-02-20T01:46:24.46 0.3 undecidable manual S 183 25.4523 141 0.01 75
IV.FOSV.EHZ. 2024-02-20T01:46:24.56 0.3 undecidable manual S 217 26.2515 140 0 75
IV.COR1.EHN. 2024-02-20T01:46:24.06 0.6 undecidable manual S 12 16.6722 153 0.64 43
IV.MPAG.EHZ. 2024-02-20T01:46:23.99 0.3 undecidable manual S 315 22.5552 145 -0.08 75
IV.SSFR.HHZ. 2024-02-20T01:46:23.15 0.3 undecidable manual S 249 14.9739 156 -0.12 76
IV.FRON.EHZ. 2024-02-20T01:46:23.68 0.3 undecidable manual S 281 18.9699 150 0.03 76
IV.ARVD.HHZ. 2024-02-20T01:46:22.10 0.1 undecidable manual S 321 1.8981 177 -0.49 95
IV.ATVO.HHZ. 2024-02-20T01:46:21.29 0.6 undecidable manual P 256 45.7209 118 0.88 38
IV.NARO.HHZ. 2024-02-20T01:46:19.07 0.6 undecidable manual P 295 33.3444 131 -0.07 49
IV.PIEI.HHZ. 2024-02-20T01:46:19.15 0.3 undecidable manual P 280 34.3434 130 -0.09 73
IV.FOSV.EHZ. 2024-02-20T01:46:18.37 0.3 positive manual P 217 26.2515 140 -0.15 73
IV.COR1.EHN. 2024-02-20T01:46:18.05 0.1 undecidable manual P 12 16.6722 153 0.18 99
IV.CING.HHN. 2024-02-20T01:46:18.38 0.3 undecidable manual P 122 22.755 145 0.13 74
IV.EL6.EHE. 2024-02-20T01:46:18.21 0.1 undecidable manual P 146 20.868 147 0.09 100
IV.MPAG.EHZ. 2024-02-20T01:46:18.16 0.3 positive manual P 315 22.5552 145 -0.08 75
IV.SNTG.HNN. 2024-02-20T01:46:18.25 0.3 undecidable manual P 183 25.4523 141 -0.21 72
IV.SSFR.HHZ. 2024-02-20T01:46:17.55 0.1 negative manual P 249 14.9739 156 -0.22 98
IV.FRON.EHZ. 2024-02-20T01:46:17.80 0.1 positive manual P 281 18.9699 150 -0.2 98
IV.ARVD.HHZ. 2024-02-20T01:46:17.02 0.1 positive manual P 321 1.8981 177 -0.37 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FRON.EHE. ML:1.1 0.00003535 0.18 AML other m 2024-02-20T01:46:23.94
IV.FRON.EHN. ML:1.1 0.00003295 0.44 AML other m 2024-02-20T01:46:24.02
IV.ARVD.HHE. ML:0.9 0.0000247834725 0.12 AML other m 2024-02-20T01:46:22.21
IV.ARVD.HHN. ML:0.8 0.000017798615 0.16 AML other m 2024-02-20T01:46:22.36
IV.SSFR.HHN. ML:0.8 0.000021888915 0.16 AML other m 2024-02-20T01:46:23.81
IV.MPAG.EHE. ML:0.7 0.000013493491499999999 0.18 AML other m 2024-02-20T01:46:24.34
IV.MPAG.EHN. ML:0.6 0.0000117374935 0.2 AML other m 2024-02-20T01:46:23.00
IV.FOSV.EHE. ML:1.0 0.000026191295 0.2 AML other m 2024-02-20T01:46:24.75
IV.NARO.HHN. ML:0.8 0.000015860755 0.2 AML other m 2024-02-20T01:46:26.27
IV.NARO.HHE. ML:0.8 0.000013467924999999999 0.2 AML other m 2024-02-20T01:46:26.04
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