Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 18-02-2024 and time 10:24:32 (Italy) in region 2 km W Castel Sant'Angelo (RI)

A magnitude ML 1.9 earthquake occured in region: 2 km W Castel Sant'Angelo (RI), on

  • 18-02-2024 09:24:32 (UTC)
  • 18-02-2024 10:24:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.3980, 13.0040 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
Cittaducale RI 5 6828 8136
Borgo Velino RI 5 972 9108
Antrodoco RI 7 2588 11696
Micigliano RI 7 127 11823
Concerviano RI 8 291 12114
Cantalice RI 11 2755 14869
Rieti RI 12 47698 62567
Belmonte in Sabina RI 13 636 63203
Petrella Salto RI 13 1197 64400
Longone Sabino RI 14 597 64997
Rocca Sinibalda RI 15 815 65812
Poggio Bustone RI 15 2055 67867
Posta RI 16 694 68561
Borbona RI 17 617 69178
Varco Sabino RI 18 187 69365
Fiamignano RI 18 1413 70778
Rivodutri RI 18 1253 72031
Leonessa RI 19 2435 74466
Torricella in Sabina RI 19 1342 75808
Marcetelli RI 19 89 75897
Contigliano RI 20 3783 79680
Cagnano Amiterno AQ 20 1369 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)
34 Km SE of Terni (111501 inhabitants)
50 Km NE of Guidonia Montecelio (88673 inhabitants)
51 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)
81 Km N of Velletri (53303 inhabitants)
91 Km NE of Pomezia (62966 inhabitants)
94 Km SE of Perugia (166134 inhabitants)
94 Km NE of Fiumicino (78395 inhabitants)
94 Km NE of Aprilia (73446 inhabitants)
95 Km W of Montesilvano (53738 inhabitants)
96 Km W of Chieti (51815 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 1.9 2024-02-18
09:24:32		 42.3982 13.0037 10 2024-02-18
09:35:16		 Sala Sismica INGV-Roma 125352271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-18 09:24:32 ± 0.08
Latitude 42.3982 ± 0.0045
Longitude 13.0037 ± 0.0061
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 125352271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 469
Semi-minor axis of confidence ellipse (meter) 395
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 266
Circular confidence region, given by single value of horizontal uncertainty (meter) 470.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 26
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) 0.67809
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 125352271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-18 09:35:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MML1.EHZ. 2024-02-18T09:24:58.34 3.0 undecidable manual S 0.44 0
IV.MF5.EHZ. 2024-02-18T09:24:55.98 0.6 undecidable manual S 29 75.2691 50 0.43 42
IV.FDMO.HHZ. 2024-02-18T09:24:55.49 0.6 undecidable manual S 5 71.1732 50 1.03 33
IV.CESI.HHZ. 2024-02-18T09:24:54.09 0.6 undecidable manual S 353 67.7766 50 0.53 42
IV.MGAB.HHZ. 2024-02-18T09:24:49.48 3.0 positive manual P 0.39 0
IV.NRCA.HHZ. 2024-02-18T09:24:48.60 0.6 undecidable manual S 11 49.1175 50 0.02 48
IV.CESX.HHZ. 2024-02-18T09:24:46.34 0.6 undecidable manual S 305 41.3253 50 -0.15 47
IV.ASSB.HHZ. 2024-02-18T09:24:46.10 3.0 positive manual P -0.3 0
IV.MF5.EHZ. 2024-02-18T09:24:46.30 0.6 positive manual P 29 75.2691 50 0.42 42
IV.CSP1.EHZ. 2024-02-18T09:24:46.16 3.0 negative manual P -0.56 0
IV.SMA1.EHZ. 2024-02-18T09:24:45.82 0.6 undecidable manual S 46 37.4292 50 0.37 46
IV.GAVE.EHZ. 2024-02-18T09:24:44.34 0.6 undecidable manual S 345 33.8439 50 -0.16 48
IV.CAMP.HHZ. 2024-02-18T09:24:44.94 0.6 undecidable manual S 65 36.5412 50 -0.28 46
IV.CESI.HHZ. 2024-02-18T09:24:44.59 0.3 undecidable manual P 353 67.7766 50 -0.15 68
IV.FDMO.HHZ. 2024-02-18T09:24:44.97 0.6 undecidable manual P 5 71.1732 50 -0.28 43
IV.ARRO.EHN. 2024-02-18T09:24:43.45 0.6 undecidable manual S 316 27.9498 50 0.52 43
IV.CERT.HHZ. 2024-02-18T09:24:42.17 3.0 positive manual P -0.14 0
IT.MMP1.HGN. 2024-02-18T09:24:42.87 0.6 undecidable manual S 232 26.6511 110 0.35 46
IV.LNSS.HHZ. 2024-02-18T09:24:41.42 0.3 undecidable manual S 8 22.8549 113 0.13 72
IV.NRCA.HHZ. 2024-02-18T09:24:41.49 0.3 undecidable manual P 11 49.1175 50 -0.37 67
IV.CESX.HHZ. 2024-02-18T09:24:40.60 0.6 undecidable manual P 305 41.3253 50 -0.05 48
IV.RM33.EHZ. 2024-02-18T09:24:40.74 0.3 undecidable manual S 54 21.1677 114 -0.01 75
IV.CAMP.HHZ. 2024-02-18T09:24:39.84 0.1 undecidable manual P 65 36.5412 50 -0.08 96
IV.SMA1.EHZ. 2024-02-18T09:24:39.97 0.1 positive manual P 46 37.4292 50 -0.09 96
IV.FIAM.HHZ. 2024-02-18T09:24:39.63 0.3 undecidable manual S 147 17.1717 119 0.12 74
IV.GAVE.EHZ. 2024-02-18T09:24:39.15 0.1 undecidable manual P 345 33.8439 50 -0.35 92
IT.MMP1.HGN. 2024-02-18T09:24:38.25 0.3 undecidable manual P 232 26.6511 110 -0.11 74
IV.ARRO.EHN. 2024-02-18T09:24:38.35 0.6 undecidable manual P 316 27.9498 50 -0.25 48
IV.RM33.EHZ. 2024-02-18T09:24:37.26 0.1 positive manual P 54 21.1677 114 -0.08 100
IV.LNSS.HHZ. 2024-02-18T09:24:37.33 0.1 positive manual P 8 22.8549 113 -0.32 95
IV.FIAM.HHZ. 2024-02-18T09:24:36.78 0.1 negative manual P 147 17.1717 119 0.16 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HHN. ML:1.9 0.0006770000000000001 1.56 AML other m 2024-02-18T09:24:41.17
IV.RM33.EHE. ML:2.1 0.0009845 1.62 AML other m 2024-02-18T09:24:41.13
IV.RM33.EHN. ML:1.9 0.0006435 0.74 AML other m 2024-02-18T09:24:42.08
IV.LNSS.HHE. ML:2.1 0.0008514999999999999 0.34 AML other m 2024-02-18T09:24:43.17
IV.FIAM.HNE. ML:1.9 0.00076104715 0.4352 AML other m 2024-02-18T09:24:44.74
IV.FIAM.HHE. ML:2.0 0.0008945000000000001 1.5 AML other m 2024-02-18T09:24:43.99
IV.LNSS.HHN. ML:2.2 0.001001 0.72 AML other m 2024-02-18T09:24:44.57
IV.GAVE.EHE. ML:2.1 0.0005794999999999999 0.26 AML other m 2024-02-18T09:24:46.64
IV.GAVE.EHN. ML:2.2 0.0006615 0.72 AML other m 2024-02-18T09:24:47.70
IV.SMA1.EHE. ML:2.1 0.000505 0.38 AML other m 2024-02-18T09:24:47.36
IV.CESX.HHE. ML:1.7 0.00015300000000000003 0.6 AML other m 2024-02-18T09:24:48.42
IV.CAMP.HHN. ML:1.7 0.000179 0.5 AML other m 2024-02-18T09:24:48.71
IV.FIAM.HNN. ML:1.8 0.00061893685 0.2496 AML other m 2024-02-18T09:24:41.17
IV.SMA1.EHN. ML:2.1 0.00045799999999999997 0.36 AML other m 2024-02-18T09:24:49.38
IV.CESX.HHN. ML:1.7 0.00017099999999999998 0.7 AML other m 2024-02-18T09:24:50.39
IV.CAMP.HHE. ML:1.7 0.00019800000000000002 1.52 AML other m 2024-02-18T09:24:50.05
IV.NRCA.HHE. ML:1.9 0.0001930423 0.1408 AML other m 2024-02-18T09:24:52.12
IV.NRCA.HHN. ML:1.7 0.00014250000000000002 0.8 AML other m 2024-02-18T09:24:52.82
IV.CERT.HHN. ML:1.6 0.00011320000000000001 1.18 AML other m 2024-02-18T09:24:54.13
IV.CERT.HHE. ML:1.9 0.00020899999999999998 1.62 AML other m 2024-02-18T09:24:54.88
IV.FDMO.HHE. ML:1.9 0.00011999999999999999 0.2 AML other m 2024-02-18T09:24:56.18
IV.FDMO.HHN. ML:1.7 0.00007575 0.74 AML other m 2024-02-18T09:24:56.49
IV.CESI.HHN. ML:1.9 0.00014399999999999998 0.3 AML other m 2024-02-18T09:24:57.22
IV.MML1.EHE. ML:1.9 0.000106 0.24 AML other m 2024-02-18T09:24:58.73
IV.CSP1.EHE. ML:2.0 0.00015644895 2.4576 AML other m 2024-02-18T09:25:00.04
IV.ASSB.HHN. ML:1.9 0.00010575 0.4 AML other m 2024-02-18T09:24:59.63
IV.CESI.HHE. ML:1.8 0.00010925 0.34 AML other m 2024-02-18T09:24:59.81
IV.CSP1.EHN. ML:2.1 0.0001735 1.58 AML other m 2024-02-18T09:25:00.95
IV.MML1.EHN. ML:1.6 0.000055650000000000004 0.76 AML other m 2024-02-18T09:25:02.02
IV.ASSB.HHE. ML:1.9 0.0001225 0.54 AML other m 2024-02-18T09:25:03.27
IV.MGAB.HHE. ML:2.1 0.00013450000000000002 0.42 AML other m 2024-02-18T09:25:05.67
IV.MGAB.HHN. ML:1.8 0.00006654999999999999 0.34 AML other m 2024-02-18T09:25:09.13
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