Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 26-12-2023 and time 09:22:46 (Italy) in region 4 km N Sora (FR)

A magnitude ML 2.1 earthquake occured in region: 4 km N Sora (FR), on

  • 26-12-2023 08:22:46 (UTC)
  • 26-12-2023 09:22:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.7570, 13.6020 at 15 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 5 1555 27699
Balsorano AQ 6 3569 31268
Broccostella FR 7 2741 34009
Campoli Appennino FR 7 1725 35734
Isola del Liri FR 9 11715 47449
Castelliri FR 10 3454 50903
Posta Fibreno FR 11 1139 52042
San Vincenzo Valle Roveto AQ 11 2347 54389
Fontechiari FR 11 1303 55692
Arpino FR 12 7262 62954
Vicalvi FR 12 783 63737
Villavallelonga AQ 13 919 64656
Alvito FR 14 2713 67369
Collelongo AQ 15 1233 68602
Monte San Giovanni Campano FR 15 12929 81531
Pescasseroli AQ 17 2203 83734
Boville Ernica FR 17 8737 92471
Fontana Liri FR 17 2953 95424
Casalvieri FR 17 2698 98122
Veroli FR 17 20560 118682
Morino AQ 17 1448 120130
Santopadre FR 17 1357 121487
Civita d'Antino AQ 18 979 122466
Casalattico FR 18 574 123040
San Donato Val di Comino FR 18 2107 125147
Rocca d'Arce FR 19 959 126106
Arce FR 19 5756 131862
Opi AQ 19 420 132282
Collepardo FR 19 968 133250
Strangolagalli FR 20 2491 135741
Gallinaro FR 20 1269 137010

Municipalities with at least 50000 inhabitants

An earthquake occurred to
66 Km E of Latina (125985 inhabitants)
68 Km S of L'Aquila (69753 inhabitants)
69 Km E of Velletri (53303 inhabitants)
70 Km E of Tivoli (56533 inhabitants)
77 Km E of Guidonia Montecelio (88673 inhabitants)
81 Km SW of Chieti (51815 inhabitants)
81 Km E of Aprilia (73446 inhabitants)
88 Km E of Anzio (54211 inhabitants)
92 Km E of Pomezia (62966 inhabitants)
94 Km SW of Pescara (121014 inhabitants)
94 Km E of Roma (2864731 inhabitants)
96 Km SW of Montesilvano (53738 inhabitants)
97 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 2.1 2023-12-26
08:22:46		 41.7572 13.6022 15 2023-12-26
08:44:06		 Sala Sismica INGV-Roma 124274961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-12-26 08:22:46 ± 0.07
Latitude 41.7572 ± 0.0027
Longitude 13.6022 ± 0.0036
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124274961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 348
Semi-minor axis of confidence ellipse (meter) 78
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 43
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 46
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
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 36
Number of stations from which data was used for origin computation 19
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 28
Type of magnitude ML
Reference to an origin 124274961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-12-26 08:44:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CROCE.HNZ. 2023-12-26T08:24:02.40 3.0 undecidable manual Pg 25.549999 0
IV.ZOVE.EHZ. 2023-12-26T08:23:44.13 3.0 undecidable manual Sn -6.71 0
IV.IFIL.HHZ. 2023-12-26T08:23:32.63 3.0 undecidable manual Pg 18.469999 0
GU.CANO.HHZ. 2023-12-26T08:23:22.37 3.0 positive manual Pn 2.77 0
IV.MFNL.HHZ. 2023-12-26T08:23:20.09 3.0 negative manual Pn -3.08 0
IV.CSNT.HHZ. 2023-12-26T08:23:17.49 3.0 undecidable manual Sg 1 0
IV.PLMA.HHZ. 2023-12-26T08:23:13.50 3.0 undecidable manual Pg 8.39 0
GU.GSCL.HHZ. 2023-12-26T08:23:05.94 3.0 undecidable manual Pg 3.74 0
IV.CERT.HHE. 2023-12-26T08:23:03.81 0.3 undecidable manual S 293 55.5 95 -0.26 65
IV.GIUL.HHZ. 2023-12-26T08:22:59.18 0.3 undecidable manual S 233 36.3414 100 0.2 68
IV.FIAM.HNE. 2023-12-26T08:22:58.82 0.6 undecidable manual P 325 69.375 94 -0.05 44
IV.MCI.EHZ. 2023-12-26T08:22:58.32 0.3 undecidable manual S 149 34.3434 101 -0.14 71
IV.VAGA.HHZ. 2023-12-26T08:22:58.85 0.6 undecidable manual P 126 64.6908 94 0.69 37
IV.MRVN.HHZ. 2023-12-26T08:22:57.24 3.0 undecidable manual Pn 1.11 0
IV.LIK.EHZ.01 2023-12-26T08:22:57.28 0.1 undecidable manual S 187 28.749 104 0.26 91
IV.LATB.EHZ. 2023-12-26T08:22:57.04 0.3 undecidable manual P 241 60.5949 95 -0.49 62
IV.T0110.HHE. 2023-12-26T08:22:56.56 0.3 undecidable manual P 15 54.3012 96 -0.01 69
IV.MIDA.HHZ. 2023-12-26T08:22:56.62 0.6 undecidable manual P 103 55.5 95 -0.13 45
IV.FAGN.HHE. 2023-12-26T08:22:56.99 0.6 undecidable manual P 358 56.3991 95 0.1 45
IV.LPEL.HHZ. 2023-12-26T08:22:56.73 0.3 undecidable manual P 56 57.6978 95 -0.36 64
IV.CERT.HHE. 2023-12-26T08:22:56.61 0.1 undecidable manual P 293 55.5 95 -0.14 90
IV.GUAR.HHZ. 2023-12-26T08:22:56.02 0.3 undecidable manual S 280 24.3534 108 0.14 71
IV.RNI2.HHZ. 2023-12-26T08:22:55.63 0.3 undecidable manual P 97 45.9207 97 0.35 65
IT.OPI.HGZ. 2023-12-26T08:22:54.40 0.3 undecidable manual S 84 18.9699 116 -0.15 71
IV.VVLD.HHZ. 2023-12-26T08:22:53.28 0.1 undecidable manual S 8 12.5763 131 0.17 98
IV.CERA.HHZ. 2023-12-26T08:22:53.92 0.1 undecidable manual P 117 38.7279 99 -0.27 91
IV.MCI.EHZ. 2023-12-26T08:22:53.36 0.3 undecidable manual P 149 34.3434 101 -0.15 70
IV.GIUL.HHZ. 2023-12-26T08:22:53.84 0.1 undecidable manual P 233 36.3414 100 0.03 95
IV.INTR.HHZ. 2023-12-26T08:22:53.97 0.1 undecidable manual P 41 37.629 99 -0.05 94
IV.GUAR.HHZ. 2023-12-26T08:22:52.23 0.1 undecidable manual P 280 24.3534 108 0.21 93
IV.LRP.EHZ. 2023-12-26T08:22:52.88 0.3 undecidable manual S 186 12.2766 132 -0.17 72
IV.LIK.EHZ.01 2023-12-26T08:22:52.84 0.3 undecidable manual P 187 28.749 104 0.16 70
IV.POFI.HHZ. 2023-12-26T08:22:52.41 0.3 undecidable manual S 116 10.0788 138 -0.23 71
IT.OPI.HGZ. 2023-12-26T08:22:51.23 0.1 undecidable manual P 84 18.9699 116 -0.02 98
IV.LRP.EHZ. 2023-12-26T08:22:50.42 0.1 undecidable manual P 186 12.2766 132 0.03 99
IV.POFI.HHZ. 2023-12-26T08:22:50.16 0.1 undecidable manual P 116 10.0788 138 0.01 100
IV.VVLD.HHZ. 2023-12-26T08:22:50.66 0.1 undecidable manual P 8 12.5763 131 0.24 95
IV.ATPI.EHZ. 2023-12-26T08:22:45.39 3.0 positive manual Pg 1.86 0
IV.ARVD.HHZ. 2023-12-26T08:22:40.57 3.0 undecidable manual Pn -1.76 0
IV.CSP1.EHZ. 2023-12-26T08:22:38.39 3.0 undecidable manual P 0.19 0
IV.ASSB.HHZ. 2023-12-26T08:22:37.30 3.0 undecidable manual Pg -1.82 0
IV.MML1.EHZ. 2023-12-26T08:22:36.54 3.0 negative manual P -2.2 0
IV.FDMO.HHZ. 2023-12-26T08:22:36.62 3.0 negative manual P -1.29 0
IV.CESI.HHZ. 2023-12-26T08:22:35.13 3.0 undecidable manual P -2.93 0
IV.CAMP.HHZ. 2023-12-26T08:22:35.10 3.0 undecidable manual P 0.24 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.POFI.HHN. ML:1.8 0.0006594999999999999 0.62 AML other m 2023-12-26T08:22:52.80
IV.POFI.HHE. ML:2.1 0.0011330000000000001 1.56 AML other m 2023-12-26T08:22:52.83
IV.POFI.HNE. ML:2.2 0.001435 1.56 AML other m 2023-12-26T08:22:52.84
IV.LRP.EHN. ML:1.9 0.0007685 1.68 AML other m 2023-12-26T08:22:52.12
IV.LRP.EHE. ML:2.4 0.002475 0.16 AML other m 2023-12-26T08:22:53.05
IV.POFI.HNN. ML:2.0 0.0009875 0.62 AML other m 2023-12-26T08:22:53.20
IV.GUAR.HHE. ML:2.2 0.0008495 0.28 AML other m 2023-12-26T08:22:56.27
IV.GUAR.HNE. ML:2.2 0.0008265 0.26 AML other m 2023-12-26T08:22:56.28
IV.GUAR.HHN. ML:2.2 0.0009299999999999999 0.18 AML other m 2023-12-26T08:22:56.42
IV.GUAR.HNN. ML:2.3 0.0010030000000000002 0.18 AML other m 2023-12-26T08:22:56.42
IV.GIUL.HHN. ML:1.9 0.0003005 0.54 AML other m 2023-12-26T08:22:59.74
IV.GIUL.HHE. ML:1.8 0.000253 0.44 AML other m 2023-12-26T08:22:59.77
IV.MCI.EHN. ML:2.2 0.0006544999999999999 0.44 AML other m 2023-12-26T08:23:00.03
IV.INTR.HNN. ML:2.1 0.0004255 0.68 AML other m 2023-12-26T08:23:00.33
IV.MCI.EHE. ML:2.4 0.0010314999999999999 0.48 AML other m 2023-12-26T08:23:00.35
IV.CERA.HHN. ML:2.0 0.0003775 1.02 AML other m 2023-12-26T08:23:00.62
IV.INTR.HNE. ML:2.1 0.000421 0.82 AML other m 2023-12-26T08:23:03.55
IV.INTR.HHE. ML:2.1 0.000438 0.54 AML other m 2023-12-26T08:23:03.55
IV.INTR.HHN. ML:2.1 0.00042300000000000004 1.5 AML other m 2023-12-26T08:23:03.13
IV.RNI2.HHN. ML:2.0 0.00027600000000000004 1.32 AML other m 2023-12-26T08:23:04.81
IV.RNI2.HNN. ML:2.0 0.0002785 1.32 AML other m 2023-12-26T08:23:04.81
IV.CERA.HHE. ML:2.2 0.0004955000000000001 1.24 AML other m 2023-12-26T08:23:05.26
IV.RNI2.HHE. ML:2.1 0.00035299999999999996 1.1 AML other m 2023-12-26T08:23:06.30
IV.RNI2.HNE. ML:2.1 0.000325 1.1 AML other m 2023-12-26T08:23:06.85
IV.MIDA.HHE. ML:1.9 0.00016900000000000002 1.1 AML other m 2023-12-26T08:23:06.87
IV.MIDA.HHN. ML:1.8 0.00014350000000000002 1.74 AML other m 2023-12-26T08:23:07.92
IV.LPEL.HHE. ML:1.9 0.00015350000000000002 0.32 AML other m 2023-12-26T08:23:07.17
IV.LPEL.HHN. ML:1.7 0.0001051 0.38 AML other m 2023-12-26T08:23:07.75
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
Waveforms Seismic signals in miniseed + resp format Download