Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 21-03-2024 and time 11:09:48 (Italy) in region 3 km W Filettino (FR)

A magnitude ML 1.6 earthquake occured in region: 3 km W Filettino (FR), on

  • 21-03-2024 10:09:48 (UTC)
  • 21-03-2024 11:09:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.8830, 13.2870 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
Filettino FR 3 565 565
Trevi nel Lazio FR 4 1822 2387
Vallepietra RM 7 283 2670
Guarcino FR 10 1623 4293
Jenne RM 10 366 4659
Fiuggi FR 10 10536 15195
Torre Cajetani FR 11 1376 16571
Trivigliano FR 12 1705 18276
Civitella Roveto AQ 12 3268 21544
Canistro AQ 12 995 22539
Castellafiume AQ 13 1106 23645
Vico nel Lazio FR 13 2234 25879
Capistrello AQ 13 5252 31131
Piglio FR 13 4666 35797
Acuto FR 14 1920 37717
Cappadocia AQ 14 528 38245
Arcinazzo Romano RM 14 1348 39593
Morino AQ 14 1448 41041
Collepardo FR 15 968 42009
Civita d'Antino AQ 15 979 42988
Affile RM 16 1548 44536
Subiaco RM 16 9074 53610
Serrone FR 16 3099 56709
Fumone FR 17 2102 58811
Luco dei Marsi AQ 18 6079 64890
Alatri FR 18 28952 93842
Roiate RM 18 737 94579
Anagni FR 19 21464 116043

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km E of Tivoli (56533 inhabitants)
47 Km E of Velletri (53303 inhabitants)
48 Km E of Guidonia Montecelio (88673 inhabitants)
53 Km S of L'Aquila (69753 inhabitants)
56 Km NE of Latina (125985 inhabitants)
62 Km NE of Aprilia (73446 inhabitants)
66 Km E of Roma (2864731 inhabitants)
69 Km E of Pomezia (62966 inhabitants)
73 Km NE of Anzio (54211 inhabitants)
88 Km E of Fiumicino (78395 inhabitants)
90 Km SW of Chieti (51815 inhabitants)
92 Km SE of Terni (111501 inhabitants)
93 Km SW of Teramo (54892 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 1.6 2024-03-21
10:09:48		 41.883 13.2867 9 2024-03-21
10:19:56		 Sala Sismica INGV-Roma 126028791
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-03-21 10:09:48 ± 0.13
Latitude 41.8830 ± 0.0072
Longitude 13.2867 ± 0.0097
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126028791

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 800
Semi-minor axis of confidence ellipse (meter) 735
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 241
Circular confidence region, given by single value of horizontal uncertainty (meter) 800.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 105
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.55488
Number of stations at which the event was observed 20
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 126028791
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-03-21 10:19:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TDS.HHZ. 2024-03-21T10:11:33.94 3.0 undecidable manual Sg 14.19 0
CH.GIMEL.HHZ. 2024-03-21T10:11:23.99 3.0 negative manual Pn 7.66 0
IV.HPAC.HHZ. 2024-03-21T10:11:19.95 3.0 undecidable manual Pg 13.87 0
IV.CROCE.HNZ. 2024-03-21T10:11:05.49 3.0 undecidable manual Pn 2.32 0
IT.VRB.HNZ. 2024-03-21T10:11:04.91 3.0 undecidable manual Pg 10.31 0
IV.SCIAC.HHZ. 2024-03-21T10:11:02.63 3.0 positive manual Pg 10.41 0
IV.MFNL.HHZ. 2024-03-21T10:10:56.87 3.0 undecidable manual Pg 8.39 0
IV.MTTG.HHZ. 2024-03-21T10:10:54.21 3.0 undecidable manual Pn 2.47 0
GU.BURY.HHZ. 2024-03-21T10:10:45.02 3.0 undecidable manual Pn -1.62 0
IV.ZCCA.HHZ. 2024-03-21T10:10:23.41 3.0 undecidable manual Pn 0.57 0
IV.POFI.HHZ. 2024-03-21T10:10:02.37 0.3 undecidable manual S 117 39.7269 50 0.23 69
IV.LRP.EHZ. 2024-03-21T10:10:01.53 0.3 undecidable manual S 136 36.0417 50 0.35 67
IV.GIUL.HHZ. 2024-03-21T10:10:00.93 0.3 undecidable manual S 184 36.1416 50 -0.26 69
IV.MCI.EHZ. 2024-03-21T10:10:00.24 0.6 undecidable manual P 135 61.5939 50 0.47 42
IV.LATB.EHZ. 2024-03-21T10:09:58.30 0.3 undecidable manual P 212 50.8158 50 0.19 68
IV.CERT.HHZ. 2024-03-21T10:09:58.36 0.6 undecidable manual S 286 26.2515 108 0.27 46
IV.POFI.HHZ. 2024-03-21T10:09:56.18 0.1 undecidable manual P 117 39.7269 50 -0.21 92
IV.ATCC.EHZ. 2024-03-21T10:09:56.45 3.0 undecidable manual P -3.89 0
IV.LRP.EHZ. 2024-03-21T10:09:55.35 0.1 undecidable manual P 136 36.0417 50 -0.48 87
IV.GIUL.HHZ. 2024-03-21T10:09:55.71 0.1 undecidable manual P 184 36.1416 50 -0.13 94
IV.PTQR.HHZ. 2024-03-21T10:09:54.54 0.6 undecidable manual S 31 18.0708 115 -0.92 38
IV.VVLD.HNE. 2024-03-21T10:09:54.45 0.3 undecidable manual P 93 27.8499 107 0.09 72
IV.PTQR.HHZ. 2024-03-21T10:09:53.20 0.3 undecidable manual P 31 18.0708 115 0.67 63
IV.CERT.HHZ. 2024-03-21T10:09:53.91 0.3 undecidable manual P 286 26.2515 108 -0.14 72
IV.GUAR.HHZ. 2024-03-21T10:09:53.07 0.3 undecidable manual S 168 10.0788 130 -0.03 75
IV.GUAR.HHZ. 2024-03-21T10:09:51.21 0.1 undecidable manual P 168 10.0788 130 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CERT.HHE. ML:1.8 0.00039600000000000003 1.58 AML other m 2024-03-21T10:09:59.86
IV.CERT.HNE. ML:1.8 0.000357 1.56 AML other m 2024-03-21T10:09:59.85
IV.PTQR.HHE. ML:1.4 0.000194 1.4 AML other m 2024-03-21T10:09:59.99
IV.CERT.HHN. ML:1.7 0.00029099999999999997 0.4 AML other m 2024-03-21T10:09:59.34
IV.PTQR.HHN. ML:1.4 0.00020999999999999998 0.86 AML other m 2024-03-21T10:09:59.36
IV.CERT.HNN. ML:1.8 0.000319 0.74 AML other m 2024-03-21T10:10:01.13
IV.LRP.EHN. ML:1.2 0.0000578 0.82 AML other m 2024-03-21T10:10:02.75
IV.LRP.EHE. ML:1.7 0.000191 0.16 AML other m 2024-03-21T10:10:03.08
IV.GIUL.HHN. ML:1.4 0.000091 1.4 AML other m 2024-03-21T10:10:03.80
IV.POFI.HHN. ML:1.5 0.00010605 0.32 AML other m 2024-03-21T10:10:03.28
IV.POFI.HHE. ML:1.6 0.00012864999999999998 0.34 AML other m 2024-03-21T10:10:03.58
IV.GIUL.HHE. ML:1.3 0.000084 0.52 AML other m 2024-03-21T10:10:04.67
IV.MCI.EHN. ML:1.9 0.00014950000000000003 0.5 AML other m 2024-03-21T10:10:11.72
IV.MCI.EHE. ML:2.0 0.00019800000000000002 0.72 AML other m 2024-03-21T10:10:12.95
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