Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 17-03-2021 and time 15:31:33 (Italy) in region 1 km NE Villa Santa Lucia (FR)

A magnitude ML 1.5 earthquake occured in region: 1 km NE Villa Santa Lucia (FR), on

  • 17-03-2021 14:31:33 (UTC)
  • 17-03-2021 15:31:33 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.5160, 13.7840 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.

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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
Villa Santa Lucia FR 1 2632 2632
Piedimonte San Germano FR 3 6535 9167
Terelle FR 4 422 9589
Cassino FR 5 36142 45731
Aquino FR 7 5370 51101
Castrocielo FR 7 3965 55066
Sant'Elia Fiumerapido FR 7 6166 61232
Belmonte Castello FR 7 739 61971
Colle San Magno FR 8 699 62670
Pignataro Interamna FR 9 2595 65265
Roccasecca FR 10 7365 72630
Cervaro FR 11 8109 80739
Vallerotonda FR 12 1581 82320
Atina FR 12 4316 86636
Pontecorvo FR 12 13242 99878
Villa Latina FR 12 1241 101119
San Giorgio a Liri FR 12 3164 104283
Casalattico FR 13 574 104857
Sant'Apollinare FR 13 1919 106776
San Vittore del Lazio FR 14 2636 109412
Casalvieri FR 14 2698 112110
Acquafondata FR 14 263 112373
Colfelice FR 15 1932 114305
Castelnuovo Parano FR 16 883 115188
Viticuso FR 16 353 115541
Sant'Ambrogio sul Garigliano FR 16 966 116507
Santopadre FR 16 1357 117864
Gallinaro FR 16 1269 119133
Picinisco FR 16 1218 120351
San Biagio Saracinisco FR 16 349 120700
San Pietro Infine CE 16 944 121644
Rocca d'Evandro CE 16 3283 124927
Esperia FR 17 3828 128755
Vallemaio FR 17 937 129692
Sant'Andrea del Garigliano FR 17 1505 131197
Ausonia FR 18 2619 133816
Settefrati FR 18 728 134544
Rocca d'Arce FR 18 959 135503
Coreno Ausonio FR 19 1644 137147
Conca Casale IS 19 200 137347
San Giovanni Incarico FR 19 3336 140683
Vicalvi FR 19 783 141466
Arce FR 19 5756 147222
Fontechiari FR 19 1303 148525
Alvito FR 20 2713 151238
Pico FR 20 2888 154126

Municipalities with at least 50000 inhabitants

An earthquake occurred to
67 Km NW of Caserta (76326 inhabitants)
70 Km NW of Aversa (53047 inhabitants)
73 Km E of Latina (125985 inhabitants)
74 Km NW of Giugliano in Campania (122974 inhabitants)
77 Km NW of Marano di Napoli (59874 inhabitants)
79 Km NW of Pozzuoli (81661 inhabitants)
79 Km NW of Afragola (65057 inhabitants)
80 Km NW of Casoria (77642 inhabitants)
80 Km NW of Acerra (59573 inhabitants)
85 Km NW of Napoli (974074 inhabitants)
86 Km E of Velletri (53303 inhabitants)
91 Km NW of Portici (55274 inhabitants)
92 Km NW of Ercolano (53709 inhabitants)
94 Km W of Benevento (60091 inhabitants)
95 Km NW of Torre del Greco (86275 inhabitants)
95 Km E of Aprilia (73446 inhabitants)
96 Km SE of Tivoli (56533 inhabitants)
97 Km E of Anzio (54211 inhabitants)
98 Km SW of Chieti (51815 inhabitants)
98 Km SE of L'Aquila (69753 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 1.5 2021-03-17
14:31:33		 41.5162 13.784 10 2021-07-12
16:55:02		 Bollettino Sismico Italiano INGV 88275361
Reviewed
Rev100 		ML 1.5 2021-03-17
14:31:33		 41.5107 13.787 11 2021-03-17
14:42:43		 Sala Sismica INGV-Roma 88216841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-17 14:31:33 ± 0.12
Latitude 41.5162 ± 0.0072
Longitude 13.7840 ± 0.0060
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 88275361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 772
Semi-minor axis of confidence ellipse (meter) 549
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 184
Circular confidence region, given by single value of horizontal uncertainty (meter) 770.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 125
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.50272
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 88275361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-15 05:20:32

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 88216841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-17 14:42:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RMP.HHZ. 2021-03-17T14:31:50.62 3.0 positive manual P 0.12 0
IV.VVLD.HNZ. 2021-03-17T14:31:47.10 0.3 undecidable manual S 341 41.4252 50 -0.07 71
IV.INTR.HHZ. 2021-03-17T14:31:43.47 0.3 undecidable manual P 10 55.7997 50 -0.15 68
IV.POFI.HHZ. 2021-03-17T14:31:42.20 0.3 undecidable manual S 345 23.0547 50 -0.09 75
IV.CERA.HHZ. 2021-03-17T14:31:42.10 0.6 undecidable manual S 65 21.4674 116 0.32 46
IV.LIK.EHE.01 2021-03-17T14:31:41.20 0.3 undecidable manual S 264 18.7701 119 0.26 72
IV.VVLD.HNZ. 2021-03-17T14:31:41.08 0.6 undecidable manual P 341 41.4252 50 -0.32 45
IV.MIDA.HNZ. 2021-03-17T14:31:41.31 0.6 undecidable manual P 70 41.4252 50 -0.09 47
IV.VAGA.HHZ. 2021-03-17T14:31:41.73 3.0 undecidable manual P 39.0276 0.69 0
IV.RNI2.HNE. 2021-03-17T14:31:41.47 0.6 undecidable manual P 56 36.9297 50 0.76 40
IT.OPI.HGE. 2021-03-17T14:31:39.33 0.3 undecidable manual P 8 29.1486 50 -0.17 71
IV.POFI.HHZ. 2021-03-17T14:31:38.66 0.3 undecidable manual P 345 23.0547 50 0.08 73
IV.CERA.HHZ. 2021-03-17T14:31:38.21 0.1 undecidable manual P 65 21.4674 116 -0.07 98
IV.LRP.EHZ. 2021-03-17T14:31:38.66 0.3 undecidable manual P 312 21.867 115 0.3 70
IV.MCI.EHE. 2021-03-17T14:31:37.00 0.1 undecidable manual S 139 3.6963 160 -0.33 95
IV.LIK.EHE.01 2021-03-17T14:31:37.58 0.3 undecidable manual P 264 18.7701 119 -0.22 71
IV.MCI.EHE. 2021-03-17T14:31:35.89 0.1 positive manual P 139 3.6963 160 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.POFI.HHE. ML:1.3 0.0001227 0.18 AML other m 2021-03-17T14:31:42.78
IV.POFI.HHN. ML:1.2 0.00010250000000000001 0.2 AML other m 2021-03-17T14:31:43.16
IV.LRP.EHE. ML:1.5 0.0002125 1.8 AML other m 2021-03-17T14:31:43.06
IV.LRP.EHN. ML:1.1 0.00008185000000000001 1.24 AML other m 2021-03-17T14:31:44.28
IV.CERA.HNE. ML:1.7 0.000361 1.56 AML other m 2021-03-17T14:31:45.02
IV.CERA.HHE. ML:1.7 0.000361 1.56 AML other m 2021-03-17T14:31:45.02
IV.CERA.HNN. ML:1.7 0.000359 1.34 AML other m 2021-03-17T14:31:46.15
IV.CERA.HHN. ML:1.7 0.000361 1.34 AML other m 2021-03-17T14:31:46.15
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