Earthquake with magnitude of ML 1.1 on date 02-02-2023 and time 23:14:21 (Italy) in region 3 km SW Appignano del Tronto (AP)

A magnitude ML 1.1 earthquake occured in region: 3 km SW Appignano del Tronto (AP), on

  • 02-02-2023 22:14:21 (UTC)
  • 02-02-2023 23:14:21 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8800, 13.6360 at 27 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Appignano del Tronto AP 3 1785 1785
Ascoli Piceno AP 6 49407 51192
Castel di Lama AP 6 8634 59826
Folignano AP 7 9241 69067
Castignano AP 7 2796 71863
Maltignano AP 7 2401 74264
Offida AP 8 5058 79322
Castorano AP 8 2380 81702
Sant'Egidio alla Vibrata TE 9 9811 91513
Colli del Tronto AP 9 3668 95181
Ancarano TE 10 1857 97038
Rotella AP 10 906 97944
Montedinove AP 11 488 98432
Spinetoli AP 11 7215 105647
Venarotta AP 12 2066 107713
Civitella del Tronto TE 12 5116 112829
Montalto delle Marche AP 12 2122 114951
Cossignano AP 12 978 115929
Monsampolo del Tronto AP 13 4611 120540
Torano Nuovo TE 13 1611 122151
Roccafluvione AP 13 2010 124161
Palmiano AP 15 196 124357
Force AP 15 1354 125711
Controguerra TE 15 2436 128147
Nereto TE 16 5242 133389
Acquaviva Picena AP 16 3831 137220
Monteprandone AP 17 12655 149875
Ripatransone AP 17 4309 154184
Sant'Omero TE 17 5243 159427
Ortezzano FM 17 774 160201
Monte Rinaldo FM 17 379 160580
Corropoli TE 17 5045 165625
Montelparo FM 17 778 166403
Campli TE 18 7209 173612
Carassai AP 18 1100 174712
Montefalcone Appennino FM 19 424 175136
Colonnella TE 19 3734 178870
Monte Vidon Combatte FM 19 433 179303
Santa Vittoria in Matenano FM 19 1330 180633
Valle Castellana TE 20 977 181610

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km N of Teramo (54892 inhabitants)
58 Km NW of Montesilvano (53738 inhabitants)
62 Km NE of L'Aquila (69753 inhabitants)
66 Km NW of Pescara (121014 inhabitants)
73 Km NW of Chieti (51815 inhabitants)
76 Km E of Foligno (57155 inhabitants)
83 Km S of Ancona (100861 inhabitants)
88 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
Bulletin
Rev1000
ML 1.1 2023-02-02
22:14:21
42.8802 13.6362 27 2024-03-01
17:18:12
Bollettino Sismico Italiano INGV 118444021
Reviewed
Rev100
ML 1.0 2023-02-02
22:14:22
42.8633 13.6213 17 2023-02-02
22:28:50
Sala Sismica INGV-Roma 113998351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-02 22:14:21 ± 0.17
Latitude 42.8802 ± 0.0063
Longitude 13.6362 ± 0.0098
Depth (km) 27 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 118444021

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 812
Semi-minor axis of confidence ellipse (meter) 241
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) 810.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 194
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.43078
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 118444021
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-07-11 08:32:23

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 113998351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-02 22:28:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LRP.EHZ. 2023-02-02T22:14:59.01 3.0 undecidable manual S -0.03 0
IV.FDMO.HHZ. 2023-02-02T22:14:37.65 0.3 undecidable manual S 291 47.8188 114 0.31 69
IV.NRCA.HHZ. 2023-02-02T22:14:36.64 0.3 undecidable manual S 263 42.7239 117 0.52 66
IV.MC2.EHZ. 2023-02-02T22:14:35.15 0.3 undecidable manual S 276 36.5412 121 0.49 68
IV.SMA1.EHZ. 2023-02-02T22:14:34.88 0.3 undecidable manual S 222 36.9297 121 0.12 72
7F.SIB3.EHZ. 2023-02-02T22:14:33.10 0.3 undecidable manual S 269 29.748 127 -0.07 74
7F.SIB1.EHZ. 2023-02-02T22:14:33.19 0.3 undecidable manual S 273 29.8479 127 0.01 75
IV.VCEL.EHE. 2023-02-02T22:14:32.11 3.0 undecidable manual P -0.05 0
IV.TERO.HHZ. 2023-02-02T22:14:32.94 0.3 undecidable manual S 185 28.6491 128 0 74
7F.SIB2.EHZ. 2023-02-02T22:14:32.32 0.3 undecidable manual S 273 27.0507 130 -0.28 71
IV.MNTT.EHZ. 2023-02-02T22:14:31.66 0.3 undecidable manual S 351 20.4684 139 0.31 72
IV.MMO1.EHZ. 2023-02-02T22:14:31.87 0.3 undecidable manual S 275 25.2525 133 -0.37 70
IV.MF5.EHZ. 2023-02-02T22:14:30.75 0.3 undecidable manual S 310 18.6702 142 -0.29 72
IV.FDMO.HHZ. 2023-02-02T22:14:30.51 0.1 undecidable manual P 291 47.8188 114 -0.01 96
IV.NRCA.HHZ. 2023-02-02T22:14:29.98 0.1 undecidable manual P 263 42.7239 117 0.17 95
IV.SMA1.EHZ. 2023-02-02T22:14:29.22 0.6 negative manual P 222 36.9297 121 0.19 47
7F.SIB1.EHZ. 2023-02-02T22:14:28.15 0.1 undecidable manual P 273 29.8479 127 0.04 100
IV.MC2.EHZ. 2023-02-02T22:14:28.81 0.1 undecidable manual P 276 36.5412 121 -0.16 95
7F.SIB3.EHZ. 2023-02-02T22:14:28.05 0.1 undecidable manual P 269 29.748 127 -0.06 99
7F.SIB2.EHZ. 2023-02-02T22:14:27.57 0.1 undecidable manual P 273 27.0507 130 -0.21 96
IV.MNTT.EHZ. 2023-02-02T22:14:27.22 0.1 undecidable manual P 351 20.4684 139 0.16 98
IV.MMO1.EHZ. 2023-02-02T22:14:27.41 0.1 undecidable manual P 275 25.2525 133 -0.16 97
IV.TERO.HHZ. 2023-02-02T22:14:27.90 0.3 undecidable manual P 185 28.6491 128 -0.08 75
IV.MF5.EHZ. 2023-02-02T22:14:26.79 0.1 undecidable manual P 310 18.6702 142 -0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MNTT.EHE. ML:1.4 0.00010361514000000001 0.2176 AML other m 2023-02-02T22:14:32.60
IV.MNTT.EHN. ML:1.2 0.00007198625 0.3072 AML other m 2023-02-02T22:14:33.51
IV.NRCA.HHE. ML:0.9 0.0000217585645 0.1408 AML other m 2023-02-02T22:14:37.59
IV.NRCA.HHN. ML:0.9 0.0000201699335 0.0896 AML other m 2023-02-02T22:14:37.72
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