Earthquake with magnitude of ML 1.1 on date 20-02-2022 and time 04:10:51 (Italy) in region 2 km NW Folignano (AP)

A magnitude ML 1.1 earthquake occured in region: 2 km NW Folignano (AP), on

  • 20-02-2022 03:10:51 (UTC)
  • 20-02-2022 04:10:51 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8400, 13.6200 at 16 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
Folignano AP 2 9241 9241
Ascoli Piceno AP 4 49407 58648
Maltignano AP 6 2401 61049
Appignano del Tronto AP 8 1785 62834
Sant'Egidio alla Vibrata TE 8 9811 72645
Castel di Lama AP 8 8634 81279
Civitella del Tronto TE 8 5116 86395
Ancarano TE 10 1857 88252
Castorano AP 11 2380 90632
Castignano AP 11 2796 93428
Venarotta AP 11 2066 95494
Colli del Tronto AP 11 3668 99162
Roccafluvione AP 12 2010 101172
Offida AP 12 5058 106230
Torano Nuovo TE 13 1611 107841
Rotella AP 14 906 108747
Campli TE 14 7209 115956
Spinetoli AP 14 7215 123171
Palmiano AP 15 196 123367
Montedinove AP 15 488 123855
Valle Castellana TE 15 977 124832
Monsampolo del Tronto AP 15 4611 129443
Sant'Omero TE 16 5243 134686
Nereto TE 16 5242 139928
Controguerra TE 17 2436 142364
Montalto delle Marche AP 17 2122 144486
Cossignano AP 17 978 145464
Force AP 17 1354 146818
Corropoli TE 18 5045 151863
Bellante TE 19 7152 159015
Rocca Santa Maria TE 19 537 159552
Acquasanta Terme AP 19 2916 162468
Monteprandone AP 20 12655 175123
Acquaviva Picena AP 20 3831 178954

Municipalities with at least 50000 inhabitants

An earthquake occurred to
21 Km NW of Teramo (54892 inhabitants)
56 Km NW of Montesilvano (53738 inhabitants)
57 Km NE of L'Aquila (69753 inhabitants)
64 Km NW of Pescara (121014 inhabitants)
70 Km NW of Chieti (51815 inhabitants)
76 Km E of Foligno (57155 inhabitants)
85 Km E of Terni (111501 inhabitants)
87 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
Bulletin
Rev1000
ML 1.1 2022-02-20
03:10:51
42.8403 13.6203 16 2022-07-08
12:33:31
Bollettino Sismico Italiano INGV 101207141
Reviewed
Rev100
ML 1.1 2022-02-20
03:10:52
42.8312 13.601 16 2022-02-20
03:21:04
Sala Sismica INGV-Roma 101154251
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-02-20 03:10:51 ± 0.11
Latitude 42.8403 ± 0.0054
Longitude 13.6203 ± 0.0086
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 101207141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 654
Semi-minor axis of confidence ellipse (meter) 340
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 289
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
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) 0.02518
Epicentral distance of station farthest from the epicenter (degree) 0.37052
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 101207141
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-21 08:34:30

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 101154251
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-02-20 03:21:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NRCA.HHZ. 2022-02-20T03:11:05.53 0.6 undecidable manual S 269 41.1255 99 0.12 46
IV.SMA1.EHZ. 2022-02-20T03:11:03.54 0.3 undecidable manual S 225 32.8449 103 0.3 68
7F.SIB3.EHE. 2022-02-20T03:11:02.19 0.3 undecidable manual S 278 28.749 105 0.03 72
7F.SIB1.EHE. 2022-02-20T03:11:02.43 0.3 undecidable manual S 282 29.1486 105 0.17 70
7F.SIB2.EHE. 2022-02-20T03:11:01.56 0.3 undecidable manual S 282 26.3514 108 0.01 72
IV.MF5.EHZ. 2022-02-20T03:11:00.60 0.3 undecidable manual S 321 20.9679 114 0.4 67
IV.TERO.HHZ. 2022-02-20T03:11:00.75 0.3 undecidable manual S 183 24.1536 110 -0.25 69
IV.MNTT.EHZ. 2022-02-20T03:11:00.83 0.3 undecidable manual S 355 24.6531 109 -0.3 68
IV.NRCA.HHZ. 2022-02-20T03:10:59.76 0.1 undecidable manual P 269 41.1255 99 0.08 93
IV.SMA1.EHZ. 2022-02-20T03:10:58.41 0.1 undecidable manual P 225 32.8449 103 -0.02 95
IV.MNTT.EHZ. 2022-02-20T03:10:57.51 0.1 undecidable manual P 355 24.6531 109 0.3 91
7F.SIB3.EHE. 2022-02-20T03:10:57.59 0.1 undecidable manual P 278 28.749 105 -0.22 91
7F.SIB2.EHE. 2022-02-20T03:10:57.13 0.1 undecidable manual P 282 26.3514 108 -0.33 90
7F.SIB1.EHE. 2022-02-20T03:10:57.71 0.1 undecidable manual P 282 29.1486 105 -0.16 93
IV.OFFI.HHZ. 2022-02-20T03:10:57.78 0.3 undecidable manual S 27 11.7771 135 -0.39 69
IV.TERO.HHZ. 2022-02-20T03:10:57.28 0.1 undecidable manual P 183 24.1536 110 0.14 94
IV.MF5.EHZ. 2022-02-20T03:10:56.62 0.1 undecidable manual P 321 20.9679 114 -0.06 96
IV.ASCOL.EHE. 2022-02-20T03:10:56.98 0.1 undecidable manual S 296 2.7972 168 -0.03 100
IV.OFFI.HHZ. 2022-02-20T03:10:55.86 0.1 undecidable manual P 27 11.7771 135 0.35 92
IV.ASCOL.EHE. 2022-02-20T03:10:54.77 0.1 undecidable manual P 296 2.7972 168 -0.06 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.OFFI.HHE. ML:1.1 0.00010147351 0.2 AML other m 2022-02-20T03:11:00.64
IV.OFFI.HHN. ML:1.2 0.000124122385 0.84 AML other m 2022-02-20T03:11:02.46
IV.MNTT.EHE. ML:1.3 0.000106877405 0.36 AML other m 2022-02-20T03:11:03.79
IV.MNTT.EHN. ML:1.3 0.0001028796435 0.4 AML other m 2022-02-20T03:11:03.42
IV.NRCA.HHN. ML:1.0 0.000029510475 0.12 AML other m 2022-02-20T03:11:06.39
IV.NRCA.HHE. ML:0.8 0.0000207301935 0.1184 AML other m 2022-02-20T03:11:06.52
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