Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 28-01-2024 and time 03:18:51 (UTC) in region 3 km NW Castel Sant'Angelo (RI)

A magnitude ML 1.3 earthquake occured in region: 3 km NW Castel Sant'Angelo (RI), on

  • 28-01-2024 03:18:51 (UTC)
  • 28-01-2024 04:18:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.4150, 13.0000 at 9 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 3 1308 1308
Borgo Velino RI 5 972 2280
Cittaducale RI 5 6828 9108
Micigliano RI 6 127 9235
Antrodoco RI 7 2588 11823
Cantalice RI 10 2755 14578
Concerviano RI 10 291 14869
Rieti RI 11 47698 62567
Poggio Bustone RI 14 2055 64622
Belmonte in Sabina RI 14 636 65258
Petrella Salto RI 14 1197 66455
Posta RI 15 694 67149
Borbona RI 15 617 67766
Longone Sabino RI 16 597 68363
Rivodutri RI 16 1253 69616
Rocca Sinibalda RI 17 815 70431
Leonessa RI 17 2435 72866
Morro Reatino RI 19 373 73239
Contigliano RI 19 3783 77022
Cagnano Amiterno AQ 19 1369 78391
Greccio RI 19 1558 79949
Varco Sabino RI 20 187 80136
Fiamignano RI 20 1413 81549

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km SE of Terni (111501 inhabitants)
34 Km W of L'Aquila (69753 inhabitants)
51 Km NE of Guidonia Montecelio (88673 inhabitants)
53 Km NE of Tivoli (56533 inhabitants)
64 Km W of Teramo (54892 inhabitants)
65 Km SE of Foligno (57155 inhabitants)
72 Km NE of Roma (2864731 inhabitants)
73 Km E of Viterbo (67173 inhabitants)
83 Km N of Velletri (53303 inhabitants)
92 Km SE of Perugia (166134 inhabitants)
92 Km NE of Pomezia (62966 inhabitants)
95 Km W of Montesilvano (53738 inhabitants)
95 Km NE of Fiumicino (78395 inhabitants)
96 Km NE of Aprilia (73446 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 1.3 2024-01-28
03:18:51		 42.415 13.0003 9 2024-01-28
03:29:38		 Sala Sismica INGV-Roma 124899551
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-01-28 03:18:51 ± 0.06
Latitude 42.4150 ± 0.0027
Longitude 13.0003 ± 0.0049
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 124899551

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 334
Semi-minor axis of confidence ellipse (meter) 249
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 78
Circular confidence region, given by single value of horizontal uncertainty (meter) 330.0
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 21
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.69248
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 8
Type of magnitude ML
Reference to an origin 124899551
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-01-28 03:29:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFE.HHZ. 2024-01-28T03:19:35.28 3.0 undecidable manual Pg 7.3 0
IV.PAOL.HHZ. 2024-01-28T03:19:24.27 3.0 undecidable manual Pn 1.22 0
IV.TERO.HHZ. 2024-01-28T03:19:09.38 0.6 undecidable manual S 65 54.501 50 0 47
IV.CERT.HHZ. 2024-01-28T03:19:08.30 0.6 undecidable manual S 182 51.7038 50 -0.34 44
IV.NRCA.HHZ. 2024-01-28T03:19:07.56 0.6 undecidable manual S 11 47.3193 50 0.08 47
IV.SRES.HHZ. 2024-01-28T03:19:07.27 0.6 undecidable manual S 244 44.8218 50 0.47 43
IV.CSP1.EHZ. 2024-01-28T03:19:05.87 0.6 undecidable manual P 12 76.8675 50 0.41 41
IV.FDMO.HHZ. 2024-01-28T03:19:04.15 0.1 undecidable manual P 6 69.2751 50 -0.14 89
IV.CESI.HHZ. 2024-01-28T03:19:03.81 0.1 undecidable manual P 353 65.8896 50 0.04 91
IV.CERT.HHZ. 2024-01-28T03:19:01.68 0.3 undecidable manual P 182 51.7038 50 0.1 70
IV.TERO.HHZ. 2024-01-28T03:19:01.76 0.3 undecidable manual P 65 54.501 50 -0.24 67
IV.ARRO.EHZ. 2024-01-28T03:19:01.30 0.3 undecidable manual S 314 26.4513 109 -0.34 69
IV.NRCA.HHZ. 2024-01-28T03:19:00.67 0.1 undecidable manual P 11 47.3193 50 -0.24 91
IV.SRES.HHZ. 2024-01-28T03:19:00.70 0.6 undecidable manual P 244 44.8218 50 0.18 46
IV.LNSS.HHZ. 2024-01-28T03:19:00.07 0.6 undecidable manual S 9 21.0678 113 0.17 48
IV.FIAM.HHZ. 2024-01-28T03:18:59.17 0.6 undecidable manual S 150 18.87 116 -0.04 50
IV.RM33.EHZ. 2024-01-28T03:18:59.84 0.6 undecidable manual S 59 20.3685 114 0.17 48
IV.ARRO.EHZ. 2024-01-28T03:18:57.63 0.3 undecidable manual P 314 26.4513 109 0.09 73
IV.RM33.EHZ. 2024-01-28T03:18:56.57 0.3 negative manual P 59 20.3685 114 0.17 73
IV.LNSS.HHZ. 2024-01-28T03:18:56.53 0.1 undecidable manual P 9 21.0678 113 0 100
IV.FIAM.HHZ. 2024-01-28T03:18:56.07 0.1 undecidable manual P 150 18.87 116 -0.06 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.RM33.EHN. ML:1.5 0.000241 0.66 AML other m 2024-01-28T03:19:00.59
IV.RM33.EHE. ML:1.4 0.00018099999999999998 0.58 AML other m 2024-01-28T03:19:01.02
IV.FIAM.HHN. ML:1.3 0.000155 0.32 AML other m 2024-01-28T03:19:01.12
IV.LNSS.HHN. ML:1.5 0.00022899999999999998 0.36 AML other m 2024-01-28T03:19:01.72
IV.LNSS.HHE. ML:1.3 0.000157 0.32 AML other m 2024-01-28T03:19:02.40
IV.FIAM.HHE. ML:1.3 0.0001555 0.82 AML other m 2024-01-28T03:19:02.75
IV.NRCA.HHE. ML:1.2 0.00004885 1.54 AML other m 2024-01-28T03:19:08.93
IV.NRCA.HHN. ML:1.2 0.00003885 1.4 AML other m 2024-01-28T03:19:09.23
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