Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 11-06-2023 and time 02:38:42 (Italy) in region 1 km SW Valle Castellana (TE)

A magnitude ML 0.8 earthquake occured in region: 1 km SW Valle Castellana (TE), on

  • 11-06-2023 00:38:42 (UTC)
  • 11-06-2023 02:38:42 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7260, 13.4910 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
Valle Castellana TE 1 977 977
Rocca Santa Maria TE 5 537 1514
Acquasanta Terme AP 8 2916 4430
Cortino TE 12 656 5086
Roccafluvione AP 15 2010 7096
Civitella del Tronto TE 15 5116 12212
Torricella Sicura TE 16 2641 14853
Folignano AP 16 9241 24094
Ascoli Piceno AP 16 49407 73501
Campli TE 16 7209 80710
Arquata del Tronto AP 17 1178 81888
Venarotta AP 17 2066 83954
Montegallo AP 18 523 84477
Teramo TE 19 54892 139369
Palmiano AP 20 196 139565
Montorio al Vomano TE 20 8218 147783
Fano Adriano TE 20 296 148079
Amatrice RI 20 2657 150736
Crognaleto TE 20 1297 152033
Maltignano AP 20 2401 154434

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km W of Teramo (54892 inhabitants)
42 Km N of L'Aquila (69753 inhabitants)
59 Km W of Montesilvano (53738 inhabitants)
66 Km W of Pescara (121014 inhabitants)
69 Km E of Foligno (57155 inhabitants)
69 Km NW of Chieti (51815 inhabitants)
71 Km E of Terni (111501 inhabitants)
99 Km S of Ancona (100861 inhabitants)
99 Km E of Perugia (166134 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 0.8 2023-06-11
00:38:42		 42.7263 13.4912 10 2023-06-11
00:44:14		 Sala Sismica INGV-Roma 118285011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-06-11 00:38:42 ± 0.13
Latitude 42.7263 ± 0.0081
Longitude 13.4912 ± 0.0110
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 118285011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1074
Semi-minor axis of confidence ellipse (meter) 582
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 217
Circular confidence region, given by single value of horizontal uncertainty (meter) 1070.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 123
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42088
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 118285011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-06-11 00:44:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MURB.HHZ. 2023-06-11T00:38:58.26 3.0 negative manual P 0 0
IV.CSP1.EHZ. 2023-06-11T00:38:57.56 0.1 undecidable manual S 330 46.7199 50 0 95
IV.NRCA.HHZ. 2023-06-11T00:38:54.27 0.1 undecidable manual S 291 32.9448 50 0.4 90
IV.OFFI.HHZ. 2023-06-11T00:38:52.84 0.1 undecidable manual S 34 28.0497 50 0.28 92
IV.MMO1.EHZ. 2023-06-11T00:38:51.11 0.1 undecidable manual S 325 23.3544 112 0.05 100
IV.CSP1.EHZ. 2023-06-11T00:38:50.47 1.0 undecidable manual P 330 46.7199 50 -0.64 21
IV.NRCA.HHZ. 2023-06-11T00:38:48.78 0.1 negative manual P 291 32.9448 50 -0.19 95
IV.TERO.HHZ. 2023-06-11T00:38:48.65 0.1 undecidable manual S 141 14.6742 123 0.27 97
IV.MMO1.EHZ. 2023-06-11T00:38:47.09 0.6 negative manual P 325 23.3544 112 -0.26 47
IV.OFFI.HHZ. 2023-06-11T00:38:47.63 0.6 undecidable manual P 34 28.0497 50 -0.59 44
IV.GIGS.HHZ. 2023-06-11T00:38:47.83 1.0 negative manual P 168 31.0467 50 -0.86 20
IV.TERO.HHZ. 2023-06-11T00:38:45.72 0.3 undecidable manual P 141 14.6742 123 -0.09 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HHN. ML:1.0 0.00009955 0.18 AML other m 2023-06-11T00:38:48.77
IV.TERO.HHE. ML:1.0 0.00009415 0.18 AML other m 2023-06-11T00:38:48.80
IV.MMO1.EHE. ML:0.7 0.0000324 0.18 AML other m 2023-06-11T00:38:51.94
IV.MMO1.EHN. ML:1.0 0.000057549999999999996 1.46 AML other m 2023-06-11T00:38:51.25
IV.FDMO.HHN. ML:0.7 0.00001445 0.24 AML other m 2023-06-11T00:38:54.60
IV.NRCA.HHE. ML:0.5 0.0000173 0.74 AML other m 2023-06-11T00:38:56.52
IV.NRCA.HHN. ML:0.5 0.00001515 0.9 AML other m 2023-06-11T00:38:58.49
IV.FDMO.HHE. ML:0.6 0.000009465 0.16 AML other m 2023-06-11T00:38:58.55
IV.MURB.HHE. ML:1.5 0.00003155 0.44 AML other m 2023-06-11T00:39:02.63
IV.MURB.HHN. ML:1.4 0.000026349999999999997 0.26 AML other m 2023-06-11T00:39:03.44
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