Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 11-02-2024 and time 18:39:11 (Italy) in region 3 km NW Castel Sant'Angelo (RI)

A magnitude ML 1.5 earthquake occured in region: 3 km NW Castel Sant'Angelo (RI), on

  • 11-02-2024 17:39:11 (UTC)
  • 11-02-2024 18:39:11 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4190, 13.0040 at 7 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 3 1308 1308
Borgo Velino RI 5 972 2280
Cittaducale RI 6 6828 9108
Micigliano RI 6 127 9235
Antrodoco RI 6 2588 11823
Cantalice RI 10 2755 14578
Concerviano RI 11 291 14869
Rieti RI 12 47698 62567
Poggio Bustone RI 13 2055 64622
Posta RI 14 694 65316
Belmonte in Sabina RI 14 636 65952
Petrella Salto RI 15 1197 67149
Borbona RI 15 617 67766
Leonessa RI 16 2435 70201
Rivodutri RI 16 1253 71454
Longone Sabino RI 16 597 72051
Rocca Sinibalda RI 17 815 72866
Morro Reatino RI 18 373 73239
Cagnano Amiterno AQ 19 1369 74608
Contigliano RI 19 3783 78391
Greccio RI 20 1558 79949
Fiamignano RI 20 1413 81362
Varco Sabino RI 20 187 81549

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km E of Terni (111501 inhabitants)
33 Km W of L'Aquila (69753 inhabitants)
52 Km NE of Guidonia Montecelio (88673 inhabitants)
53 Km NE of Tivoli (56533 inhabitants)
63 Km W of Teramo (54892 inhabitants)
65 Km SE of Foligno (57155 inhabitants)
72 Km NE of Roma (2864731 inhabitants)
74 Km E of Viterbo (67173 inhabitants)
83 Km N of Velletri (53303 inhabitants)
92 Km SE of Perugia (166134 inhabitants)
93 Km NE of Pomezia (62966 inhabitants)
95 Km W of Montesilvano (53738 inhabitants)
96 Km NE of Fiumicino (78395 inhabitants)
96 Km W of Chieti (51815 inhabitants)
96 Km NE of Aprilia (73446 inhabitants)
100 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 1.5 2024-02-11
17:39:11		 42.4187 13.0035 7 2024-02-11
17:52:46		 Sala Sismica INGV-Roma 125224271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-02-11 17:39:11 ± 0.07
Latitude 42.4187 ± 0.0036
Longitude 13.0035 ± 0.0049
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 125224271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 459
Semi-minor axis of confidence ellipse (meter) 306
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 52
Circular confidence region, given by single value of horizontal uncertainty (meter) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 93
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 30
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) 0.17267
Epicentral distance of station farthest from the epicenter (degree) 0.67269
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 125224271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-02-11 17:52:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CESI.HNZ. 2024-02-11T17:39:32.87 1.0 undecidable manual S 353 65.5899 50 0.18 23
7F.SIB1.EHZ. 2024-02-11T17:39:30.66 0.6 undecidable manual S 22 57.0984 50 0.22 46
7F.SIB3.EHZ. 2024-02-11T17:39:29.86 0.6 undecidable manual S 23 55.1004 50 -0.05 47
IV.NRCA.HNZ. 2024-02-11T17:39:27.69 0.6 undecidable manual S 11 46.9197 50 -0.03 48
IV.ASSB.HHZ. 2024-02-11T17:39:25.22 0.1 undecidable manual P 338 74.6697 50 -0.09 91
IV.MF5.EHZ. 2024-02-11T17:39:25.34 0.1 undecidable manual P 30 73.2711 50 0.25 88
IV.FDMO.HHZ. 2024-02-11T17:39:24.46 0.1 undecidable manual P 6 68.8755 50 0.05 93
IV.CAMP.HHE. 2024-02-11T17:39:24.23 0.6 undecidable manual S 68 35.6421 101 -0.27 47
IV.MMO1.EHZ. 2024-02-11T17:39:23.27 0.1 undecidable manual P 26 59.496 50 0.3 89
IV.CESI.HNZ. 2024-02-11T17:39:23.89 0.1 undecidable manual P 353 65.5899 50 -0.01 94
IV.GAVE.HNZ. 2024-02-11T17:39:23.29 0.6 undecidable manual S 344 31.6461 103 0.14 49
IV.MOMA.HHZ. 2024-02-11T17:39:22.74 0.1 undecidable manual P 321 55.5 50 0.39 88
7F.SIB2.EHZ. 2024-02-11T17:39:22.43 0.1 undecidable manual P 25 57.8976 50 -0.28 90
7F.SIB3.EHZ. 2024-02-11T17:39:22.04 0.1 undecidable manual P 23 55.1004 50 -0.25 91
IV.MC2.EHZ. 2024-02-11T17:39:22.33 0.1 undecidable manual P 15 56.6988 50 -0.21 92
7F.SIB1.EHZ. 2024-02-11T17:39:22.49 0.1 undecidable manual P 22 57.0984 50 -0.11 93
IV.NRCA.HNZ. 2024-02-11T17:39:20.83 0.1 undecidable manual P 11 46.9197 50 -0.2 93
IV.CESX.HHZ. 2024-02-11T17:39:20.19 0.1 undecidable manual P 302 40.0266 50 0.22 94
IV.SRES.HHE. 2024-02-11T17:39:20.64 1.0 undecidable manual P 244 45.2214 50 -0.12 24
IV.RM33.HNE. 2024-02-11T17:39:19.67 0.6 undecidable manual S 60 19.9689 110 0.42 47
IV.LNSS.HHZ. 2024-02-11T17:39:19.81 1.0 undecidable manual S 8 20.6682 109 0.33 24
IV.SMA1.EHZ. 2024-02-11T17:39:19.06 0.6 positive manual P 49 35.9418 101 -0.16 48
IV.FIAM.HNE. 2024-02-11T17:39:19.18 0.6 undecidable manual S 151 19.1697 111 0.2 49
IV.CAMP.HHE. 2024-02-11T17:39:18.92 0.1 undecidable manual P 68 35.6421 101 -0.25 94
IV.GAVE.HNZ. 2024-02-11T17:39:18.03 0.1 undecidable manual P 344 31.6461 103 -0.35 93
MN.AQU.HHE. 2024-02-11T17:39:18.93 0.1 undecidable manual P 102 33.6441 102 0.15 97
IV.ARRO.EHZ. 2024-02-11T17:39:17.17 0.1 undecidable manual P 313 26.3514 105 -0.19 97
IV.RM33.HNE. 2024-02-11T17:39:16.24 0.1 undecidable manual P 60 19.9689 110 0.1 100
IV.LNSS.HHZ. 2024-02-11T17:39:16.51 0.1 undecidable manual P 8 20.6682 109 0.24 97
IV.FIAM.HNE. 2024-02-11T17:39:15.87 0.1 undecidable manual P 151 19.1697 111 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHN. ML:1.5 0.0002505 0.76 AML other m 2024-02-11T17:39:23.28
IV.LNSS.HHE. ML:1.5 0.00021799999999999999 0.48 AML other m 2024-02-11T17:39:24.27
IV.ATCC.HNN. ML:2.3 0.00021200000000000003 0.6 AML other m 2024-02-11T17:39:24.49
IV.ATCC.HNE. ML:2.3 0.000251 0.8 AML other m 2024-02-11T17:39:25.29
IV.ARRO.EHN. ML:1.3 0.0001045 0.62 AML other m 2024-02-11T17:39:25.41
IV.ARRO.EHE. ML:1.2 0.0000913 0.42 AML other m 2024-02-11T17:39:26.39
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