Earthquake with magnitude of ML 0.8 on date 08-07-2023 and time 08:34:15 (Italy) in region 1 km NE Castignano (AP)

A magnitude ML 0.8 earthquake occured in region: 1 km NE Castignano (AP), on

  • 08-07-2023 06:34:15 (UTC)
  • 08-07-2023 08:34:15 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9490, 13.6350 at 24 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Castignano AP 2 2796 2796
Montedinove AP 5 488 3284
Offida AP 5 5058 8342
Montalto delle Marche AP 5 2122 10464
Cossignano AP 6 978 11442
Rotella AP 6 906 12348
Appignano del Tronto AP 6 1785 14133
Castorano AP 9 2380 16513
Ortezzano FM 10 774 17287
Monte Rinaldo FM 10 379 17666
Carassai AP 10 1100 18766
Castel di Lama AP 11 8634 27400
Montelparo FM 11 778 28178
Monte Vidon Combatte FM 11 433 28611
Ascoli Piceno AP 12 49407 78018
Force AP 12 1354 79372
Ripatransone AP 12 4309 83681
Colli del Tronto AP 12 3668 87349
Spinetoli AP 13 7215 94564
Montottone FM 13 979 95543
Petritoli FM 13 2335 97878
Maltignano AP 14 2401 100279
Santa Vittoria in Matenano FM 14 1330 101609
Venarotta AP 14 2066 103675
Monsampolo del Tronto AP 14 4611 108286
Monteleone di Fermo FM 14 395 108681
Folignano AP 14 9241 117922
Acquaviva Picena AP 15 3831 121753
Monsampietro Morico FM 15 659 122412
Montefalcone Appennino FM 15 424 122836
Montefiore dell'Aso AP 15 2123 124959
Ancarano TE 15 1857 126816
Sant'Egidio alla Vibrata TE 15 9811 136627
Palmiano AP 15 196 136823
Monte Giberto FM 16 801 137624
Roccafluvione AP 16 2010 139634
Smerillo FM 17 365 139999
Monteprandone AP 17 12655 152654
Monterubbiano FM 17 2230 154884
Moresco FM 17 598 155482
Ponzano di Fermo FM 17 1674 157156
Massignano AP 18 1638 158794
Belmonte Piceno FM 18 646 159440
Comunanza AP 18 3166 162606
Torano Nuovo TE 18 1611 164217
Monte San Martino MC 18 765 164982
Grottazzolina FM 18 3398 168380
Controguerra TE 18 2436 170816
Servigliano FM 19 2336 173152
Grottammare AP 20 16006 189158
Civitella del Tronto TE 20 5116 194274

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km N of Teramo (54892 inhabitants)
64 Km NW of Montesilvano (53738 inhabitants)
69 Km N of L'Aquila (69753 inhabitants)
72 Km NW of Pescara (121014 inhabitants)
75 Km S of Ancona (100861 inhabitants)
76 Km E of Foligno (57155 inhabitants)
79 Km NW of Chieti (51815 inhabitants)
91 Km E of Terni (111501 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 2023-07-08
06:34:15
42.9487 13.6348 24 2023-07-08
06:50:06
Sala Sismica INGV-Roma 119069171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-07-08 06:34:15 ± 0.25
Latitude 42.9487 ± 0.0081
Longitude 13.6348 ± 0.0111
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 119069171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 873
Semi-minor axis of confidence ellipse (meter) 676
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 344
Circular confidence region, given by single value of horizontal uncertainty (meter) 870.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 183
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.03957
Epicentral distance of station farthest from the epicenter (degree) 0.39840
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 119069171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-07-08 06:50:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2023-07-08T06:34:30.27 0.6 undecidable manual S 253 44.2224 111 0.37 44
IV.SMA1.EHZ. 2023-07-08T06:34:29.48 0.6 undecidable manual S 215 42.9237 111 -0.1 46
IV.TERO.HHZ. 2023-07-08T06:34:28.04 0.6 undecidable manual S 184 36.2415 116 0.09 47
IV.SMA1.EHZ. 2023-07-08T06:34:23.36 0.6 undecidable manual P 215 42.9237 111 -0.07 46
IV.MF5.EHZ. 2023-07-08T06:34:23.12 0.6 undecidable manual S 287 14.874 143 -0.34 47
IV.NRCA.HHZ. 2023-07-08T06:34:23.66 0.3 positive manual P 253 44.2224 111 0.04 71
IV.TERO.HHZ. 2023-07-08T06:34:22.39 1.0 negative manual P 184 36.2415 116 -0.1 23
IV.OFFI.HHZ. 2023-07-08T06:34:22.47 0.6 undecidable manual S 110 4.3956 168 0.17 48
IV.MF5.EHZ. 2023-07-08T06:34:19.84 0.1 negative manual P 287 14.874 143 -0.06 98
IV.OFFI.HHZ. 2023-07-08T06:34:19.27 0.1 positive manual P 110 4.3956 168 0.04 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHN. ML:1.1 0.00003485 0.32 AML other m 2023-07-08T06:34:29.40
IV.SMA1.EHE. ML:1.0 0.0000272 0.98 AML other m 2023-07-08T06:34:29.28
IV.TERO.HHE. ML:0.7 0.000016641495 1.3984 AML other m 2023-07-08T06:34:34.70
IV.TERO.HHN. ML:0.5 0.000011161415 0.24 AML other m 2023-07-08T06:34:30.84
IV.NRCA.HHE. ML:0.6 0.000012454456499999998 0.2208 AML other m 2023-07-08T06:34:30.26
IV.NRCA.HHN. ML:0.8 0.00001498609 0.1184 AML other m 2023-07-08T06:34:31.22
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