Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 01-08-2024 and time 23:43:30 (UTC) in region 4 km NE Cittareale (RI)

A magnitude ML 1.4 earthquake occured in region: 4 km NE Cittareale (RI), on

  • 01-08-2024 23:43:30 (UTC)
  • 02-08-2024 01:43:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6540, 13.1830 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
Cittareale RI 4 482 482
Accumoli RI 7 667 1149
Amatrice RI 9 2657 3806
Montereale AQ 15 2581 6387
Cascia PG 16 3217 9604
Posta RI 16 694 10298
Arquata del Tronto AP 16 1178 11476
Borbona RI 16 617 12093
Norcia PG 17 4957 17050
Capitignano AQ 18 665 17715
Campotosto AQ 19 542 18257
Monteleone di Spoleto PG 19 599 18856

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km NW of L'Aquila (69753 inhabitants)
43 Km W of Teramo (54892 inhabitants)
45 Km E of Terni (111501 inhabitants)
52 Km SE of Foligno (57155 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
82 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km SE of Perugia (166134 inhabitants)
83 Km NE of Tivoli (56533 inhabitants)
87 Km W of Pescara (121014 inhabitants)
88 Km W of Chieti (51815 inhabitants)
92 Km E of Viterbo (67173 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 2024-08-01
23:43:30		 42.6542 13.1832 10 2024-08-01
23:49:57		 Sala Sismica INGV-Roma 130336041
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-08-01 23:43:30 ± 0.08
Latitude 42.6542 ± 0.0036
Longitude 13.1832 ± 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 130336041

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 405
Semi-minor axis of confidence ellipse (meter) 367
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 237
Circular confidence region, given by single value of horizontal uncertainty (meter) 400.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 12
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) 0.26710
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 130336041
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-08-01 23:49:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GUMA.HHZ. 2024-08-01T23:43:46.89 3.0 undecidable manual S 0.38 0
IV.FDMO.HHZ. 2024-08-01T23:43:44.65 3.0 undecidable manual S -0.83 0
IV.MURB.HHZ. 2024-08-01T23:43:43.29 3.0 negative manual P -2.32 0
IV.SRES.HHZ. 2024-08-01T23:43:40.58 3.0 negative manual P -2.19 0
IV.MMO1.EHZ. 2024-08-01T23:43:40.86 0.3 undecidable manual S 23 29.6481 50 -0.01 75
IV.MOMA.HHZ. 2024-08-01T23:43:40.07 3.0 undecidable manual P 0.11 0
IV.CSP1.EHZ. 2024-08-01T23:43:39.35 3.0 undecidable manual P -0.08 0
IV.FIAM.HHZ. 2024-08-01T23:43:38.04 3.0 positive manual P 0.18 0
IV.NRCA.HHZ. 2024-08-01T23:43:38.02 0.3 undecidable manual S 344 20.6682 116 -0.3 71
IV.LNSS.HHZ. 2024-08-01T23:43:36.23 0.3 undecidable manual S 244 12.9759 128 0.17 74
IV.TERO.HHZ. 2024-08-01T23:43:36.61 3.0 positive manual P -0.13 0
IV.RM33.EHZ. 2024-08-01T23:43:36.63 0.3 undecidable manual S 171 16.2726 122 -0.37 71
ZO.PDN11.EHZ. 2024-08-01T23:43:36.71 0.3 undecidable manual S 340 15.2736 124 0.01 76
IV.ARRO.EHZ. 2024-08-01T23:43:36.99 3.0 positive manual P 0.05 0
IV.SMA1.EHZ. 2024-08-01T23:43:36.13 0.3 undecidable manual S 102 12.6762 129 0.16 75
IV.MMO1.EHZ. 2024-08-01T23:43:36.43 0.1 undecidable manual P 23 29.6481 50 0.02 99
IV.GAVE.EHZ. 2024-08-01T23:43:35.41 3.0 positive manual P 0.02 0
IV.RM33.EHZ. 2024-08-01T23:43:34.06 0.1 positive manual P 171 16.2726 122 -0.12 100
ZO.PDN11.EHZ. 2024-08-01T23:43:34.11 0.3 undecidable manual P 340 15.2736 124 0.1 75
IV.NRCA.HHZ. 2024-08-01T23:43:34.88 0.1 negative manual P 344 20.6682 116 -0.06 100
IV.SMA1.EHZ. 2024-08-01T23:43:33.77 0.3 positive manual P 102 12.6762 129 0.19 74
IV.LNSS.HHZ. 2024-08-01T23:43:33.79 0.1 positive manual P 244 12.9759 128 0.16 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:1.7 0.0005225 0.18 AML other m 2024-08-01T23:43:36.43
IV.SMA1.EHE. ML:2.2 0.0017200000000000002 0.36 AML other m 2024-08-01T23:43:36.60
IV.SMA1.EHN. ML:1.9 0.0008265 0.22 AML other m 2024-08-01T23:43:36.55
IV.LNSS.HHN. ML:1.6 0.000446 0.72 AML other m 2024-08-01T23:43:37.49
IV.RM33.HNN. ML:1.6 0.000368 0.68 AML other m 2024-08-01T23:43:37.36
IV.RM33.EHN. ML:1.5 0.0002775 0.18 AML other m 2024-08-01T23:43:37.28
IV.RM33.HNE. ML:1.4 0.0002275 0.8 AML other m 2024-08-01T23:43:37.42
IV.RM33.EHE. ML:1.3 0.00016849999999999998 0.42 AML other m 2024-08-01T23:43:37.43
IV.NRCA.HHN. ML:1.3 0.00014150000000000002 0.66 AML other m 2024-08-01T23:43:38.58
IV.NRCA.HHE. ML:1.4 0.000184 0.46 AML other m 2024-08-01T23:43:38.34
IV.GAVE.EHN. ML:1.6 0.00022450000000000004 0.26 AML other m 2024-08-01T23:43:39.45
IV.GAVE.EHE. ML:1.5 0.000203 0.36 AML other m 2024-08-01T23:43:39.86
IV.MMO1.EHE. ML:1.2 0.000079 0.48 AML other m 2024-08-01T23:43:41.46
IV.MMO1.EHN. ML:1.2 0.0000765 1.42 AML other m 2024-08-01T23:43:41.97
IV.TERO.HHN. ML:1.3 0.00008549999999999999 0.9 AML other m 2024-08-01T23:43:41.45
IV.TERO.HHE. ML:1.5 0.0001275 1.28 AML other m 2024-08-01T23:43:41.72
IV.FIAM.HHN. ML:1.0 0.0000347 0.94 AML other m 2024-08-01T23:43:44.50
IV.FIAM.HHE. ML:1.2 0.000051250000000000006 0.8 AML other m 2024-08-01T23:43:44.97
IV.ARRO.EHE. ML:0.9 0.00003295 1.52 AML other m 2024-08-01T23:43:45.07
IV.ARRO.EHN. ML:0.9 0.000036400000000000004 0.16 AML other m 2024-08-01T23:43:45.59
IV.FDMO.HHN. ML:1.0 0.0000276 0.66 AML other m 2024-08-01T23:43:45.84
IV.GUMA.HHE. ML:1.8 0.0001725 0.3 AML other m 2024-08-01T23:43:46.99
IV.GUMA.HHN. ML:1.8 0.0001655 0.36 AML other m 2024-08-01T23:43:47.09
IV.MOMA.HHN. ML:1.2 0.000036150000000000005 0.22 AML other m 2024-08-01T23:43:48.11
IV.MOMA.HHE. ML:1.2 0.000033849999999999996 1.22 AML other m 2024-08-01T23:43:48.16
IV.FDMO.HHE. ML:0.9 0.00002625 0.72 AML other m 2024-08-01T23:43:50.42
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