Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 01-04-2024 and time 14:02:21 (UTC) in region 4 km NW Sora (FR)

A magnitude ML 1.9 earthquake occured in region: 4 km NW Sora (FR), on

  • 01-04-2024 14:02:21 (UTC)
  • 01-04-2024 16:02:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.7500, 13.5840 at 8 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
Sora FR 4 26144 26144
Pescosolido FR 6 1555 27699
Balsorano AQ 6 3569 31268
Broccostella FR 7 2741 34009
Isola del Liri FR 8 11715 45724
Campoli Appennino FR 8 1725 47449
Castelliri FR 8 3454 50903
San Vincenzo Valle Roveto AQ 11 2347 53250
Posta Fibreno FR 11 1139 54389
Arpino FR 11 7262 61651
Fontechiari FR 12 1303 62954
Vicalvi FR 13 783 63737
Monte San Giovanni Campano FR 13 12929 76666
Villavallelonga AQ 14 919 77585
Alvito FR 15 2713 80298
Boville Ernica FR 15 8737 89035
Veroli FR 15 20560 109595
Collelongo AQ 15 1233 110828
Fontana Liri FR 16 2953 113781
Morino AQ 17 1448 115229
Santopadre FR 17 1357 116586
Casalvieri FR 17 2698 119284
Collepardo FR 18 968 120252
Civita d'Antino AQ 18 979 121231
Arce FR 18 5756 126987
Rocca d'Arce FR 18 959 127946
Strangolagalli FR 18 2491 130437
Pescasseroli AQ 18 2203 132640
Casalattico FR 18 574 133214
San Donato Val di Comino FR 20 2107 135321
Ripi FR 20 5270 140591

Municipalities with at least 50000 inhabitants

An earthquake occurred to
65 Km E of Latina (125985 inhabitants)
67 Km E of Velletri (53303 inhabitants)
69 Km S of L'Aquila (69753 inhabitants)
69 Km E of Tivoli (56533 inhabitants)
76 Km E of Guidonia Montecelio (88673 inhabitants)
80 Km E of Aprilia (73446 inhabitants)
83 Km SW of Chieti (51815 inhabitants)
86 Km E of Anzio (54211 inhabitants)
90 Km E of Pomezia (62966 inhabitants)
93 Km E of Roma (2864731 inhabitants)
95 Km SW of Pescara (121014 inhabitants)
97 Km SW of Montesilvano (53738 inhabitants)
98 Km NW of Caserta (76326 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 1.9 2024-04-01
14:02:21		 41.7497 13.5843 8 2024-04-01
14:08:41		 Sala Sismica INGV-Roma 126372221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-01 14:02:21 ± 0.06
Latitude 41.7497 ± 0.0036
Longitude 13.5843 ± 0.0036
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126372221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 387
Semi-minor axis of confidence ellipse (meter) 88
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 28
Circular confidence region, given by single value of horizontal uncertainty (meter) 390.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 66
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.10072
Epicentral distance of station farthest from the epicenter (degree) 0.51081
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 26
Type of magnitude ML
Reference to an origin 126372221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-01 14:08:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CERT.HHZ. 2024-04-01T14:02:39.96 0.3 undecidable manual S 294 54.501 50 0.4 65
IV.CERA.HHZ. 2024-04-01T14:02:36.12 0.3 undecidable manual S 115 39.7269 50 0.5 65
IV.PTQR.HHZ. 2024-04-01T14:02:34.20 0.3 undecidable manual S 333 33.8439 50 0.15 70
IV.GIUL.HHZ. 2024-04-01T14:02:34.81 0.3 undecidable manual S 232 34.6431 50 0.55 65
IV.T0110.HHZ. 2024-04-01T14:02:32.11 0.1 undecidable manual P 16 55.5 50 -0.18 89
IV.MIDA.HHZ. 2024-04-01T14:02:32.28 0.1 undecidable manual P 102 56.6988 50 -0.19 88
IV.CERT.HHZ. 2024-04-01T14:02:31.81 0.1 undecidable manual P 294 54.501 50 -0.32 86
IV.GUAR.HHZ. 2024-04-01T14:02:30.54 0.6 undecidable manual S 283 23.0547 110 0.06 48
IT.OPI.HGZ. 2024-04-01T14:02:29.47 0.3 undecidable manual S 82 20.5683 112 -0.2 71
IV.CERA.HHZ. 2024-04-01T14:02:29.75 0.1 undecidable manual P 115 39.7269 50 -0.1 93
IV.MCI.EHZ. 2024-04-01T14:02:29.12 0.3 undecidable manual P 146 34.3434 50 0.09 71
IV.PTQR.HHZ. 2024-04-01T14:02:28.60 0.1 undecidable manual P 333 33.8439 50 -0.34 90
IV.GIUL.HHZ. 2024-04-01T14:02:28.82 0.1 undecidable manual P 232 34.6431 50 -0.24 91
IV.POFI.HHZ. 2024-04-01T14:02:27.05 0.3 undecidable manual S 109 11.1777 127 0.24 71
IV.VVLD.HHZ. 2024-04-01T14:02:27.80 0.3 undecidable manual S 14 13.6752 121 0.26 71
IV.LIK.EHZ.01 2024-04-01T14:02:27.83 0.6 undecidable manual P 184 27.8499 107 0.04 48
IV.GUAR.HHZ. 2024-04-01T14:02:26.90 0.3 undecidable manual P 283 23.0547 110 0.01 73
IV.LRP.EHZ. 2024-04-01T14:02:26.58 0.3 undecidable manual S 179 11.3775 126 -0.29 71
IT.OPI.HGZ. 2024-04-01T14:02:26.42 0.1 undecidable manual P 82 20.5683 112 0 99
IV.VVLD.HHZ. 2024-04-01T14:02:25.30 0.1 undecidable manual P 14 13.6752 121 0.11 97
IV.POFI.HHZ. 2024-04-01T14:02:24.85 0.1 undecidable manual P 109 11.1777 127 0.09 98
IV.LRP.EHZ. 2024-04-01T14:02:24.79 0.1 undecidable manual P 179 11.3775 126 -0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.POFI.HNN. ML:2.0 0.00128 0.86 AML other m 2024-04-01T14:02:27.34
IV.LRP.EHN. ML:1.6 0.0005420000000000001 1.16 AML other m 2024-04-01T14:02:27.37
IV.POFI.HNE. ML:2.0 0.001165 1.04 AML other m 2024-04-01T14:02:28.58
IV.POFI.HHN. ML:1.9 0.00102 0.8 AML other m 2024-04-01T14:02:28.51
IV.VVLD.HHE. ML:2.0 0.001194 0.4 AML other m 2024-04-01T14:02:28.26
IV.VVLD.HNE. ML:2.0 0.0011545000000000001 0.4 AML other m 2024-04-01T14:02:28.26
IV.LRP.EHE. ML:2.0 0.00138 0.86 AML other m 2024-04-01T14:02:28.78
IV.VVLD.HHN. ML:2.0 0.0010505 0.64 AML other m 2024-04-01T14:02:28.41
IV.VVLD.HNN. ML:1.9 0.0009339999999999999 0.64 AML other m 2024-04-01T14:02:28.41
IV.POFI.HHE. ML:1.9 0.0009524999999999999 0.94 AML other m 2024-04-01T14:02:29.10
IV.GUAR.HHE. ML:1.7 0.00034750000000000004 0.52 AML other m 2024-04-01T14:02:33.73
IV.GUAR.HHN. ML:1.9 0.0005665000000000001 0.64 AML other m 2024-04-01T14:02:34.98
IV.MCI.EHE. ML:2.3 0.0008035 0.7 AML other m 2024-04-01T14:02:37.64
IV.MCI.EHN. ML:2.2 0.0006194999999999999 0.52 AML other m 2024-04-01T14:02:37.35
IV.CERA.HHN. ML:2.0 0.0003195 0.36 AML other m 2024-04-01T14:02:37.57
IV.PTQR.HHN. ML:1.7 0.000193 1.22 AML other m 2024-04-01T14:02:37.23
IV.GIUL.HHN. ML:1.6 0.00016249999999999997 1.42 AML other m 2024-04-01T14:02:38.05
IV.GIUL.HHE. ML:1.7 0.0001965 0.88 AML other m 2024-04-01T14:02:38.86
IV.CERA.HNE. ML:1.9 0.0002965 0.46 AML other m 2024-04-01T14:02:39.61
IV.CERA.HHE. ML:1.9 0.00030500000000000004 0.44 AML other m 2024-04-01T14:02:39.39
IV.CERT.HHN. ML:1.8 0.000134 1.3 AML other m 2024-04-01T14:02:41.82
IV.PTQR.HHE. ML:1.6 0.000176 1.54 AML other m 2024-04-01T14:02:42.89
IV.CERA.HNN. ML:2.0 0.000313 0.64 AML other m 2024-04-01T14:02:42.67
IV.MIDA.HHN. ML:1.7 0.000118 0.54 AML other m 2024-04-01T14:02:44.32
IV.CERT.HHE. ML:1.8 0.000164 0.42 AML other m 2024-04-01T14:02:44.70
IV.MIDA.HHE. ML:1.8 0.00013700000000000002 0.6 AML other m 2024-04-01T14:02:46.68
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