Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 11-02-2023 and time 23:34:17 (UTC) in region 4 km NE Frosinone (FR)

A magnitude ML 2.0 earthquake occured in region: 4 km NE Frosinone (FR), on

  • 11-02-2023 23:34:17 (UTC)
  • 12-02-2023 00:34:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.6650, 13.3800 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Frosinone FR 4 46323 46323
Torrice FR 4 4816 51139
Veroli FR 4 20560 71699
Ripi FR 7 5270 76969
Alatri FR 8 28952 105921
Boville Ernica FR 8 8737 114658
Arnara FR 9 2309 116967
Fumone FR 10 2102 119069
Collepardo FR 11 968 120037
Ferentino FR 11 21213 141250
Ceccano FR 11 23565 164815
Pofi FR 11 4204 169019
Strangolagalli FR 12 2491 171510
Monte San Giovanni Campano FR 12 12929 184439
Vico nel Lazio FR 13 2234 186673
Patrica FR 14 3171 189844
Supino FR 14 4873 194717
Castelliri FR 14 3454 198171
Trivigliano FR 15 1705 199876
Fontana Liri FR 15 2953 202829
Morolo FR 15 3257 206086
Guarcino FR 16 1623 207709
Giuliano di Roma FR 16 2400 210109
Isola del Liri FR 16 11715 221824
Torre Cajetani FR 17 1376 223200
Villa Santo Stefano FR 17 1720 224920
Castro dei Volsci FR 17 4781 229701
Ceprano FR 18 8897 238598
Arce FR 18 5756 244354
Rocca d'Arce FR 19 959 245313
Prossedi LT 19 1202 246515
Sgurgola FR 19 2676 249191
Arpino FR 19 7262 256453

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km E of Latina (125985 inhabitants)
50 Km E of Velletri (53303 inhabitants)
59 Km SE of Tivoli (56533 inhabitants)
61 Km E of Aprilia (73446 inhabitants)
66 Km SE of Guidonia Montecelio (88673 inhabitants)
67 Km E of Anzio (54211 inhabitants)
73 Km E of Pomezia (62966 inhabitants)
77 Km S of L'Aquila (69753 inhabitants)
79 Km E of Roma (2864731 inhabitants)
96 Km E of Fiumicino (78395 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
Bulletin
Rev1000 		ML 2.0 2023-02-11
23:34:17		 41.6647 13.3805 10 2024-03-01
17:18:08		 Bollettino Sismico Italiano INGV 117287551
Reviewed
Rev100 		ML 2.0 2023-02-11
23:34:17		 41.6667 13.3748 10 2023-02-11
23:41:49		 Sala Sismica INGV-Roma 114360831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-11 23:34:17 ± 0.06
Latitude 41.6647 ± 0.0036
Longitude 13.3805 ± 0.0048
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 117287551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 352
Semi-minor axis of confidence ellipse (meter) 304
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 325
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) 81
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.13939
Epicentral distance of station farthest from the epicenter (degree) 0.63672
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 114360831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-11 23:41:49

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 30
Type of magnitude ML
Reference to an origin 117287551
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-09-03 23:11:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.INTR.HHZ. 2023-02-11T23:34:35.84 0.6 undecidable manual S 48 57.8976 50 0.24 45
IT.CSO1.HGN. 2023-02-11T23:34:35.00 0.3 undecidable manual S 334 54.1014 50 0.43 65
IT.OPI.HGE. 2023-02-11T23:34:31.26 0.6 undecidable manual S 71 39.2274 50 0.65 42
IV.PTQR.HHZ. 2023-02-11T23:34:30.59 0.6 undecidable manual S 2 39.627 50 -0.13 48
IV.LATB.EHE. 2023-02-11T23:34:30.27 0.6 undecidable manual S 242 39.5271 50 -0.41 45
IV.MTCE.HHZ. 2023-02-11T23:34:29.31 0.6 undecidable manual P 307 66.0894 50 0.11 46
IV.FIAM.HHZ. 2023-02-11T23:34:29.76 0.6 undecidable manual P 342 70.374 50 -0.12 45
IV.FAGN.HHZ. 2023-02-11T23:34:29.44 1.0 undecidable manual P 14 68.7756 50 -0.19 22
IV.T0110.HHZ. 2023-02-11T23:34:29.81 0.3 undecidable manual P 27 70.6737 50 -0.11 68
IV.INTR.HHZ. 2023-02-11T23:34:27.83 0.1 positive manual P 48 57.8976 50 -0.13 92
IV.VVLD.HHZ. 2023-02-11T23:34:27.82 0.6 undecidable manual S 41 30.3474 50 -0.41 46
IV.CERA.HHZ. 2023-02-11T23:34:27.55 0.6 undecidable manual P 98 53.4021 50 0.29 45
IV.POFI.HHZ. 2023-02-11T23:34:27.30 0.6 undecidable manual S 78 28.0497 50 -0.33 47
IT.CSO1.HGN. 2023-02-11T23:34:27.53 0.3 undecidable manual P 334 54.1014 50 0.17 69
IV.LIK.EHN.01 2023-02-11T23:34:26.36 0.6 undecidable manual S 141 23.5542 50 -0.06 50
IV.CERT.HHE. 2023-02-11T23:34:26.18 0.3 undecidable manual P 314 45.621 50 0.12 71
IV.MCI.EHZ. 2023-02-11T23:34:25.13 0.3 undecidable manual P 118 40.7259 50 -0.17 71
IT.OPI.HGE. 2023-02-11T23:34:25.28 0.3 undecidable manual P 71 39.2274 50 0.2 70
IV.PTQR.HHZ. 2023-02-11T23:34:25.22 0.1 undecidable manual P 2 39.627 50 0.08 96
IV.GIUL.HHZ. 2023-02-11T23:34:24.32 0.6 undecidable manual S 222 15.7731 123 0.26 48
IV.LATB.EHE. 2023-02-11T23:34:24.79 0.1 undecidable manual P 242 39.5271 50 -0.33 91
IV.LRP.EHZ. 2023-02-11T23:34:24.16 0.6 undecidable manual S 96 17.1717 121 -0.32 48
IV.GUAR.HHZ. 2023-02-11T23:34:23.64 0.3 undecidable manual S 339 15.4734 124 -0.34 71
IV.POFI.HHZ. 2023-02-11T23:34:23.57 0.1 undecidable manual P 78 28.0497 50 0.22 95
IV.VVLD.HHZ. 2023-02-11T23:34:23.46 0.1 positive manual P 41 30.3474 50 -0.24 95
IV.LIK.EHN.01 2023-02-11T23:34:22.73 0.1 undecidable manual P 141 23.5542 50 0.07 99
IV.GUAR.HHZ. 2023-02-11T23:34:21.40 0.1 positive manual P 339 15.4734 124 0.15 99
IV.LRP.EHZ. 2023-02-11T23:34:21.62 0.1 undecidable manual P 96 17.1717 121 0.08 100
IV.GIUL.HHZ. 2023-02-11T23:34:21.44 0.1 positive manual P 222 15.7731 123 0.15 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUAR.HHE. ML:2.5 0.00283 0.2 AML other m 2023-02-11T23:34:24.50
IV.GUAR.HNE. ML:2.4 0.0026349999999999998 0.2 AML other m 2023-02-11T23:34:24.50
IV.GIUL.HHE. ML:2.2 0.001335 0.28 AML other m 2023-02-11T23:34:24.75
IV.LRP.EHE. ML:2.2 0.00151 0.2 AML other m 2023-02-11T23:34:24.82
IV.GUAR.HHN. ML:2.6 0.0035499999999999998 1.66 AML other m 2023-02-11T23:34:24.98
IV.GUAR.HNN. ML:2.6 0.003375 1.66 AML other m 2023-02-11T23:34:24.98
IV.GIUL.HHN. ML:2.1 0.001295 1 AML other m 2023-02-11T23:34:25.11
IV.LRP.EHN. ML:1.8 0.000501 0.16 AML other m 2023-02-11T23:34:25.24
IV.VVLD.HHE. ML:2.1 0.0005895 1.58 AML other m 2023-02-11T23:34:28.04
IV.VVLD.HNE. ML:2.1 0.0005620000000000001 1.06 AML other m 2023-02-11T23:34:28.05
IV.VVLD.HHN. ML:1.9 0.0003915 0.9 AML other m 2023-02-11T23:34:28.50
IV.POFI.HHE. ML:1.6 0.000186 0.64 AML other m 2023-02-11T23:34:30.39
IV.POFI.HHN. ML:1.6 0.0001835 0.94 AML other m 2023-02-11T23:34:30.59
IV.VVLD.HNN. ML:1.9 0.0003615 1.18 AML other m 2023-02-11T23:34:31.33
IV.PTQR.HHN. ML:1.8 0.00022799999999999999 1.2 AML other m 2023-02-11T23:34:31.18
IV.PTQR.HHE. ML:1.8 0.000245 1.38 AML other m 2023-02-11T23:34:32.26
IV.MCI.EHN. ML:2.2 0.00047850000000000003 0.24 AML other m 2023-02-11T23:34:33.59
IV.MCI.EHE. ML:2.5 0.0010840000000000001 0.24 AML other m 2023-02-11T23:34:34.69
IV.INTR.HHE. ML:2.1 0.00026250000000000004 0.44 AML other m 2023-02-11T23:34:36.32
IV.CERA.HNN. ML:1.9 0.000175 0.7 AML other m 2023-02-11T23:34:37.84
IV.CERA.HHN. ML:1.8 0.0001725 0.7 AML other m 2023-02-11T23:34:37.84
IV.CERA.HNE. ML:1.8 0.00016949999999999997 1.44 AML other m 2023-02-11T23:34:40.84
IV.CERA.HHE. ML:1.8 0.000168 0.58 AML other m 2023-02-11T23:34:40.84
IV.INTR.HHN. ML:2.1 0.00027949999999999996 0.82 AML other m 2023-02-11T23:34:41.47
IV.MTCE.HHN. ML:1.6 0.00007835000000000001 1.38 AML other m 2023-02-11T23:34:41.79
IV.T0110.HHN. ML:2.0 0.0001705 0.3 AML other m 2023-02-11T23:34:41.52
IV.T0110.HHE. ML:2.0 0.000175 1.7 AML other m 2023-02-11T23:34:42.08
IV.MTCE.HHE. ML:1.6 0.00007885 1.46 AML other m 2023-02-11T23:34:44.14
IV.FIAM.HHN. ML:2.0 0.000174 1.5 AML other m 2023-02-11T23:34:47.09
IV.FIAM.HHE. ML:2.0 0.00017299999999999998 0.66 AML other m 2023-02-11T23:34:49.05
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