Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 29-02-2024 and time 14:10:44 (Italy) in region 2 km W Castel Sant'Angelo (RI)

A magnitude ML 1.7 earthquake occured in region: 2 km W Castel Sant'Angelo (RI), on

  • 29-02-2024 13:10:44 (UTC)
  • 29-02-2024 14:10:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4020, 13.0080 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
Castel Sant'Angelo RI 2 1308 1308
Borgo Velino RI 4 972 2280
Cittaducale RI 5 6828 9108
Antrodoco RI 6 2588 11696
Micigliano RI 7 127 11823
Concerviano RI 9 291 12114
Cantalice RI 11 2755 14869
Rieti RI 12 47698 62567
Petrella Salto RI 13 1197 63764
Belmonte in Sabina RI 13 636 64400
Longone Sabino RI 15 597 64997
Poggio Bustone RI 15 2055 67052
Posta RI 15 694 67746
Rocca Sinibalda RI 16 815 68561
Borbona RI 16 617 69178
Rivodutri RI 18 1253 70431
Varco Sabino RI 18 187 70618
Fiamignano RI 18 1413 72031
Leonessa RI 18 2435 74466
Cagnano Amiterno AQ 19 1369 75835
Torricella in Sabina RI 19 1342 77177
Marcetelli RI 20 89 77266
Contigliano RI 20 3783 81049
Morro Reatino RI 20 373 81422

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km W of L'Aquila (69753 inhabitants)
35 Km SE of Terni (111501 inhabitants)
50 Km NE of Guidonia Montecelio (88673 inhabitants)
52 Km NE of Tivoli (56533 inhabitants)
64 Km W of Teramo (54892 inhabitants)
67 Km SE of Foligno (57155 inhabitants)
71 Km NE of Roma (2864731 inhabitants)
74 Km E of Viterbo (67173 inhabitants)
82 Km N of Velletri (53303 inhabitants)
91 Km NE of Pomezia (62966 inhabitants)
93 Km SE of Perugia (166134 inhabitants)
95 Km NE of Aprilia (73446 inhabitants)
95 Km W of Montesilvano (53738 inhabitants)
95 Km NE of Fiumicino (78395 inhabitants)
96 Km W of Chieti (51815 inhabitants)
99 Km W of Pescara (121014 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 1.7 2024-02-29
13:10:44		 42.402 13.0083 10 2024-02-29
13:19:05		 Sala Sismica INGV-Roma 125622621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-29 13:10:44 ± 0.09
Latitude 42.4020 ± 0.0045
Longitude 13.0083 ± 0.0097
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 125622621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 769
Semi-minor axis of confidence ellipse (meter) 467
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 101
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) 86
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
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) 0.15648
Epicentral distance of station farthest from the epicenter (degree) 0.60704
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 12
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 125622621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-29 13:19:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HHZ. 2024-02-29T13:11:05.65 0.6 undecidable manual S 353 67.377 50 0.76 52
IV.NRCA.HHZ. 2024-02-29T13:10:59.68 0.6 undecidable manual S 10 48.618 50 -0.2 64
IV.CESI.HHZ. 2024-02-29T13:10:56.21 1.0 undecidable manual P 353 67.377 50 0.07 32
IV.GAVE.HNN. 2024-02-29T13:10:55.68 0.6 undecidable manual S 344 33.5442 50 -0.16 66
IV.TERO.HHZ. 2024-02-29T13:10:54.07 0.6 undecidable manual P 63 54.501 50 -0.09 64
IV.CERT.HHZ. 2024-02-29T13:10:54.01 1.0 negative manual P 183 50.3163 50 0.5 30
IV.LNSS.HHZ. 2024-02-29T13:10:52.81 0.6 undecidable manual S 7 22.4553 114 0.09 68
IV.NRCA.HHZ. 2024-02-29T13:10:52.94 0.6 undecidable manual P 10 48.618 50 -0.31 62
IV.CESX.HHE. 2024-02-29T13:10:52.48 0.3 undecidable manual P 304 41.4252 50 0.35 94
IV.RM33.EHZ. 2024-02-29T13:10:52.24 0.6 undecidable manual S 55 20.6682 116 0.08 68
IV.SMA1.EHN. 2024-02-29T13:10:51.52 0.6 undecidable manual P 46 36.8298 50 0.09 66
IV.FIAM.HHZ. 2024-02-29T13:10:51.14 0.6 undecidable manual S 149 17.3715 120 -0.01 70
IV.GAVE.HNN. 2024-02-29T13:10:50.63 0.3 undecidable manual P 344 33.5442 50 -0.29 96
IV.ARRO.EHZ. 2024-02-29T13:10:49.91 0.3 undecidable manual P 315 27.9498 50 -0.15 100
IT.MMP1.HGZ. 2024-02-29T13:10:49.82 0.6 undecidable manual P 232 27.2505 50 -0.13 67
IV.LNSS.HHZ. 2024-02-29T13:10:48.78 1.0 undecidable manual P 7 22.4553 114 -0.34 32
IV.FIAM.HHZ. 2024-02-29T13:10:48.16 0.6 undecidable manual P 149 17.3715 120 -0.05 69
IV.RM33.EHZ. 2024-02-29T13:10:48.89 0.6 negative manual P 55 20.6682 116 0.1 68
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHE. ML:2.0 0.0006525000000000001 0.5 AML other m 2024-02-29T13:10:52.38
IV.RM33.HNE. ML:2.0 0.000654 0.3 AML other m 2024-02-29T13:10:52.53
IV.FIAM.HHN. ML:1.7 0.000461 0.26 AML other m 2024-02-29T13:10:52.68
IV.RM33.EHN. ML:1.7 0.000365 0.24 AML other m 2024-02-29T13:10:52.88
IV.FIAM.HNN. ML:1.8 0.000515 0.44 AML other m 2024-02-29T13:10:53.31
IV.RM33.HNN. ML:1.8 0.00043 0.56 AML other m 2024-02-29T13:10:53.88
IV.FIAM.HHE. ML:2.0 0.0007849999999999999 0.42 AML other m 2024-02-29T13:10:56.40
IV.FIAM.HNE. ML:1.9 0.00074 0.44 AML other m 2024-02-29T13:10:56.41
IV.NRCA.HHN. ML:1.5 0.0000857 0.42 AML other m 2024-02-29T13:11:01.55
IV.NRCA.HHE. ML:1.7 0.00013700000000000002 0.5 AML other m 2024-02-29T13:11:04.11
IV.GIGS.HHN. ML:1.2 0.0000505 0.42 AML other m 2024-02-29T13:11:06.76
IV.GIGS.HHE. ML:1.1 0.000036150000000000005 1.46 AML other m 2024-02-29T13:11:09.11
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