Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 29-07-2023 and time 11:33:17 (UTC) in region 4 km E Valle Castellana (TE)

A magnitude ML 1.3 earthquake occured in region: 4 km E Valle Castellana (TE), on

  • 29-07-2023 11:33:17 (UTC)
  • 29-07-2023 13:33:17 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7400, 13.5440 at 11 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
Valle Castellana TE 4 977 977
Rocca Santa Maria TE 6 537 1514
Civitella del Tronto TE 11 5116 6630
Acquasanta Terme AP 12 2916 9546
Folignano AP 12 9241 18787
Campli TE 12 7209 25996
Torricella Sicura TE 13 2641 28637
Ascoli Piceno AP 13 49407 78044
Cortino TE 13 656 78700
Roccafluvione AP 15 2010 80710
Maltignano AP 16 2401 83111
Teramo TE 16 54892 138003
Venarotta AP 16 2066 140069
Sant'Egidio alla Vibrata TE 17 9811 149880
Montorio al Vomano TE 19 8218 158098
Palmiano AP 19 196 158294
Ancarano TE 20 1857 160151

Municipalities with at least 50000 inhabitants

An earthquake occurred to
16 Km NW of Teramo (54892 inhabitants)
45 Km N of L'Aquila (69753 inhabitants)
56 Km W of Montesilvano (53738 inhabitants)
63 Km W of Pescara (121014 inhabitants)
67 Km NW of Chieti (51815 inhabitants)
73 Km E of Foligno (57155 inhabitants)
76 Km E of Terni (111501 inhabitants)
98 Km S of Ancona (100861 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 2023-07-29
11:33:17		 42.7395 13.5443 11 2023-07-29
11:41:27		 Sala Sismica INGV-Roma 119679851
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-29 11:33:17 ± 0.06
Latitude 42.7395 ± 0.0027
Longitude 13.5443 ± 0.0061
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119679851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 464
Semi-minor axis of confidence ellipse (meter) 252
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) 460.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 83
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.56118
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 17
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 119679851
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-29 11:41:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRTC.HHZ. 2023-07-29T11:33:37.92 3.0 negative manual P 0.6 0
IV.MML1.EHZ. 2023-07-29T11:33:36.47 0.3 undecidable manual S 312 62.2932 50 0.25 66
IV.FDMO.HHZ. 2023-07-29T11:33:33.04 0.6 undecidable manual S 312 49.617 50 0.21 45
IV.CSP1.EHZ. 2023-07-29T11:33:32.53 0.6 undecidable manual S 325 47.8188 50 0.18 46
IV.NRCA.HHZ. 2023-07-29T11:33:29.49 0.6 undecidable manual S 287 36.5412 50 0.16 47
IV.RM33.EHZ. 2023-07-29T11:33:29.82 0.6 undecidable manual S 227 37.1295 50 0.33 45
IV.MML1.EHZ. 2023-07-29T11:33:27.95 1.0 undecidable manual P 312 62.2932 50 -0.19 22
IV.MF5.EHZ. 2023-07-29T11:33:27.62 0.3 undecidable manual S 346 28.3494 50 0.47 67
7F.SIB1.EHZ. 2023-07-29T11:33:27.32 0.6 undecidable manual S 308 28.1496 50 0.22 47
IV.GIGS.HHZ. 2023-07-29T11:33:27.69 0.6 undecidable manual S 176 31.8459 50 -0.39 45
IV.MMO1.HNZ. 2023-07-29T11:33:26.24 0.6 undecidable manual S 315 25.0527 50 -0.03 49
IV.CAMP.HHZ. 2023-07-29T11:33:26.48 0.6 undecidable manual S 206 25.1526 50 0.19 48
7F.SIB2.EHZ. 2023-07-29T11:33:26.48 0.3 undecidable manual S 311 25.752 50 0.01 74
7F.SIB3.EHZ. 2023-07-29T11:33:26.78 0.6 undecidable manual S 304 26.9508 50 0.02 49
IV.CSP1.EHZ. 2023-07-29T11:33:25.60 1.0 negative manual P 325 47.8188 50 -0.31 22
IV.SMA1.EHZ. 2023-07-29T11:33:25.18 0.6 undecidable manual S 235 20.868 50 0.02 50
IV.FDMO.HHZ. 2023-07-29T11:33:25.80 0.6 negative manual P 312 49.617 50 -0.39 44
IV.RM33.EHZ. 2023-07-29T11:33:24.15 0.6 positive manual P 227 37.1295 50 -0.11 47
IV.GIGS.HHZ. 2023-07-29T11:33:23.09 0.6 positive manual P 176 31.8459 50 -0.36 45
IV.MTRA.HNZ. 2023-07-29T11:33:23.09 0.6 undecidable manual S 279 12.1767 132 0.26 48
IV.TRTR.HHE. 2023-07-29T11:33:23.59 0.1 undecidable manual P 76 31.0467 50 0.27 93
IV.NRCA.HHZ. 2023-07-29T11:33:23.94 1.0 undecidable manual P 287 36.5412 50 -0.23 23
IV.TERO.HNZ. 2023-07-29T11:33:23.66 0.6 undecidable manual S 159 13.875 129 0.4 46
7F.SIB3.EHZ. 2023-07-29T11:33:22.48 0.1 undecidable manual P 304 26.9508 50 -0.21 95
IV.MF5.EHZ. 2023-07-29T11:33:22.84 1.0 positive manual P 346 28.3494 50 -0.07 24
7F.SIB1.EHZ. 2023-07-29T11:33:22.67 0.1 undecidable manual P 308 28.1496 50 -0.21 94
IV.MMO1.HNZ. 2023-07-29T11:33:22.29 0.1 undecidable manual P 315 25.0527 50 -0.11 97
IV.CAMP.HHZ. 2023-07-29T11:33:22.35 0.6 undecidable manual P 206 25.1526 50 -0.06 49
7F.SIB2.EHZ. 2023-07-29T11:33:22.22 0.1 undecidable manual P 311 25.752 50 -0.3 93
IV.SMA1.EHZ. 2023-07-29T11:33:21.79 0.3 positive manual P 235 20.868 50 0.03 74
IV.TERO.HNZ. 2023-07-29T11:33:20.90 0.3 undecidable manual P 159 13.875 129 0.23 72
IV.ASCOL.HNZ. 2023-07-29T11:33:20.33 0.1 undecidable manual P 17 12.876 131 -0.2 97
IV.MTRA.HNZ. 2023-07-29T11:33:20.35 0.1 undecidable manual P 279 12.1767 132 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HNN. ML:1.8 0.000592 0.18 AML other m 2023-07-29T11:33:23.96
IV.TERO.HNE. ML:1.3 0.0001945 1.82 AML other m 2023-07-29T11:33:24.08
IV.SMA1.EHE. ML:1.2 0.0001041 0.32 AML other m 2023-07-29T11:33:25.64
IV.SMA1.EHN. ML:1.1 0.00009695000000000001 0.7 AML other m 2023-07-29T11:33:26.75
IV.CAMP.HHN. ML:1.0 0.0000637 0.48 AML other m 2023-07-29T11:33:26.78
IV.CAMP.HHE. ML:1.2 0.00009204999999999999 0.32 AML other m 2023-07-29T11:33:26.82
IV.GIGS.HHN. ML:0.8 0.0000298 0.24 AML other m 2023-07-29T11:33:27.85
IV.GIGS.HHE. ML:1.2 0.00007960000000000001 1.9 AML other m 2023-07-29T11:33:28.96
IV.NRCA.HHN. ML:1.5 0.0001215 1.4 AML other m 2023-07-29T11:33:30.11
IV.NRCA.HHE. ML:1.5 0.0001305 0.08 AML other m 2023-07-29T11:33:30.14
IV.RM33.EHE. ML:1.2 0.0000642 0.22 AML other m 2023-07-29T11:33:30.37
IV.RM33.EHN. ML:1.2 0.0000619 1.24 AML other m 2023-07-29T11:33:30.06
IV.CSP1.EHE. ML:1.7 0.0001295 1.64 AML other m 2023-07-29T11:33:32.11
IV.CSP1.EHN. ML:1.8 0.0001535 0.78 AML other m 2023-07-29T11:33:32.99
IV.FDMO.HHE. ML:1.1 0.00003065 0.2 AML other m 2023-07-29T11:33:33.26
IV.FDMO.HHN. ML:1.1 0.0000283 0.48 AML other m 2023-07-29T11:33:33.36
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