Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 24-04-2024 and time 06:57:32 (UTC) in region 3 km S Riano (RM)

A magnitude ML 1.4 earthquake occured in region: 3 km S Riano (RM), on

  • 24-04-2024 06:57:32 (UTC)
  • 24-04-2024 08:57:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.0640, 12.5140 at 10 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
Riano RM 3 10466 10466
Castelnuovo di Porto RM 7 8630 19096
Sacrofano RM 7 7740 26836
Monterotondo RM 9 40830 67666
Morlupo RM 9 8696 76362
Capena RM 9 10592 86954
Formello RM 10 12918 99872
Mentana RM 11 22921 122793
Fonte Nuova RM 11 32562 155355
Magliano Romano RM 13 1448 156803
Fiano Romano RM 14 15360 172163
Campagnano di Roma RM 14 11571 183734
Civitella San Paolo RM 16 2066 185800
Rignano Flaminio RM 17 10277 196077
Sant'Angelo Romano RM 17 5018 201095
Mazzano Romano RM 18 3165 204260
Guidonia Montecelio RM 19 88673 292933
Calcata VT 19 918 293851
Faleria VT 19 2179 296030
Roma RM 19 2864731 3160761
Sant'Oreste RM 19 3687 3164448
Nazzano RM 20 1436 3165884

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km W of Guidonia Montecelio (88673 inhabitants)
19 Km N of Roma (2864731 inhabitants)
26 Km W of Tivoli (56533 inhabitants)
40 Km NE of Fiumicino (78395 inhabitants)
44 Km N of Pomezia (62966 inhabitants)
47 Km NW of Velletri (53303 inhabitants)
52 Km SE of Viterbo (67173 inhabitants)
53 Km N of Aprilia (73446 inhabitants)
56 Km S of Terni (111501 inhabitants)
60 Km E of Civitavecchia (52991 inhabitants)
69 Km N of Anzio (54211 inhabitants)
74 Km NW of Latina (125985 inhabitants)
80 Km W 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
Reviewed
Rev100 		ML 1.4 2024-04-24
06:57:32		 42.0637 12.5143 10 2024-04-24
07:06:10		 Sala Sismica INGV-Roma 127029071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-04-24 06:57:32 ± 0.07
Latitude 42.0637 ± 0.0045
Longitude 12.5143 ± 0.0048
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 127029071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 440
Semi-minor axis of confidence ellipse (meter) 416
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 70
Circular confidence region, given by single value of horizontal uncertainty (meter) 440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 72
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.88763
Number of stations at which the event was observed 26
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 127029071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-04-24 07:06:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.GIMEL.HHZ. 2024-04-24T06:59:30.14 3.0 positive manual Pg 22.889999 0
IV.TDS.HHZ. 2024-04-24T06:59:29.10 3.0 undecidable manual Sg 12.74 0
IV.ECTS.HHZ. 2024-04-24T06:59:25.77 3.0 undecidable manual Sn -9.99 0
IV.CELI.HHZ. 2024-04-24T06:59:13.77 3.0 undecidable manual Sn -9.23 0
IV.RAFF.HHZ. 2024-04-24T06:58:58.19 3.0 positive manual Pg 9.6 0
IV.BRMO.HHZ. 2024-04-24T06:58:45.79 3.0 undecidable manual Pn 1.65 0
IV.MCRV.HHZ. 2024-04-24T06:58:42.21 3.0 undecidable manual Sg -0.01 0
IT.MCS.HGZ. 2024-04-24T06:58:34.44 3.0 undecidable manual Sg 0.78 0
IV.SFI.HNZ. 2024-04-24T06:58:33.40 3.0 undecidable manual Sg 0.75 0
IV.SPS2.HHZ. 2024-04-24T06:58:29.90 3.0 undecidable manual Pn -4.26 0
GU.CANO.HHZ. 2024-04-24T06:58:28.90 3.0 negative manual Pn -3.6 0
IV.MCRV.HHZ. 2024-04-24T06:58:11.14 3.0 undecidable manual Pn -0.35 0
IV.BDI.HHZ. 2024-04-24T06:58:09.50 3.0 positive manual Pn -4.26 0
IV.NARO.HHZ. 2024-04-24T06:58:01.39 3.0 undecidable manual Pg 0.42 0
IV.NRCA.HHZ. 2024-04-24T06:57:49.10 0.3 undecidable manual P 30 98.5236 50 0.01 65
IV.BARO.EHZ. 2024-04-24T06:57:46.74 0.3 undecidable manual S 298 43.2234 50 0.17 70
IV.TOLF.HHE. 2024-04-24T06:57:46.02 0.3 undecidable manual S 270 42.3243 50 -0.31 68
IV.GIUL.HHZ. 2024-04-24T06:57:46.94 0.6 undecidable manual P 132 82.9503 50 0.24 42
IV.MOMA.HHZ. 2024-04-24T06:57:46.86 0.1 undecidable manual P 3 82.251 50 0.28 84
IV.CERT.HHZ. 2024-04-24T06:57:45.65 0.3 undecidable manual S 108 40.5261 50 -0.21 69
IV.RM33.EHZ. 2024-04-24T06:57:45.31 0.1 undecidable manual P 49 75.7686 50 -0.28 85
IT.MMP1.HGZ. 2024-04-24T06:57:43.41 0.3 undecidable manual S 43 28.1496 50 0.86 58
IV.ARRO.EHZ. 2024-04-24T06:57:43.35 0.3 negative manual P 20 60.7947 50 0.07 69
IV.BARO.EHZ. 2024-04-24T06:57:40.44 0.1 undecidable manual P 298 43.2234 50 -0.13 94
IV.TOLF.HHE. 2024-04-24T06:57:40.30 0.1 undecidable manual P 270 42.3243 50 -0.13 94
IV.CERT.HHZ. 2024-04-24T06:57:39.88 0.1 undecidable manual P 108 40.5261 50 -0.28 91
IV.SRES.HHZ. 2024-04-24T06:57:39.74 0.3 undecidable manual S 359 19.2696 118 -0.19 72
IV.MTCE.HHZ. 2024-04-24T06:57:39.68 0.3 undecidable manual S 103 19.2696 118 -0.27 71
IT.RMVT.HGZ. 2024-04-24T06:57:38.25 0.3 undecidable manual S 191 12.1767 130 0.37 70
IT.MMP1.HGZ. 2024-04-24T06:57:38.31 0.1 undecidable manual P 43 28.1496 50 0.06 98
IT.RMMM.HGN. 2024-04-24T06:57:36.35 0.1 undecidable manual P 198 16.3725 122 0.11 99
IV.SRES.HHZ. 2024-04-24T06:57:36.64 0.1 undecidable manual P 359 19.2696 118 -0.09 98
IV.MTCE.HHZ. 2024-04-24T06:57:36.76 0.1 undecidable manual P 103 19.2696 118 0.01 100
IT.RMVT.HGZ. 2024-04-24T06:57:35.65 0.3 positive manual P 191 12.1767 130 0.1 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SRES.HHE. ML:1.2 0.000131 1.6 AML other m 2024-04-24T06:57:40.81
IV.MTCE.HHN. ML:1.7 0.00034599999999999995 0.7 AML other m 2024-04-24T06:57:40.14
IV.MTCE.HHE. ML:1.6 0.0003125 0.52 AML other m 2024-04-24T06:57:40.09
IV.SRES.HHN. ML:1.2 0.00011436465000000001 0.14 AML other m 2024-04-24T06:57:41.39
IV.RM33.EHN. ML:1.5 0.00004675 0.7 AML other m 2024-04-24T06:57:59.59
IV.RM33.EHE. ML:1.4 0.000034254635000000005 0.4 AML other m 2024-04-24T06:57:56.66
IV.CERT.HHE. ML:1.3 0.00006337346 0.14 AML other m 2024-04-24T06:57:47.23
IV.CERT.HHN. ML:1.2 0.000052407335 0.28 AML other m 2024-04-24T06:57:47.85
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