Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.5 on date 24-09-2022 and time 01:50:35 (Italy) in region 4 km SW Folignano (AP)

A magnitude ML 0.5 earthquake occured in region: 4 km SW Folignano (AP), on

  • 23-09-2022 23:50:35 (UTC)
  • 24-09-2022 01:50:35 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.7930, 13.6160 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.

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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
Folignano AP 4 9241 9241
Civitella del Tronto TE 5 5116 14357
Maltignano AP 7 2401 16758
Ascoli Piceno AP 8 49407 66165
Sant'Egidio alla Vibrata TE 9 9811 75976
Campli TE 9 7209 83185
Valle Castellana TE 12 977 84162
Ancarano TE 12 1857 86019
Castel di Lama AP 12 8634 94653
Appignano del Tronto AP 13 1785 96438
Torano Nuovo TE 14 1611 98049
Roccafluvione AP 14 2010 100059
Rocca Santa Maria TE 14 537 100596
Venarotta AP 14 2066 102662
Colli del Tronto AP 15 3668 106330
Castorano AP 15 2380 108710
Sant'Omero TE 15 5243 113953
Torricella Sicura TE 15 2641 116594
Castignano AP 16 2796 119390
Bellante TE 16 7152 126542
Teramo TE 17 54892 181434
Nereto TE 17 5242 186676
Spinetoli AP 17 7215 193891
Acquasanta Terme AP 17 2916 196807
Offida AP 17 5058 201865
Palmiano AP 18 196 202061
Controguerra TE 18 2436 204497
Corropoli TE 18 5045 209542
Monsampolo del Tronto AP 19 4611 214153
Rotella AP 19 906 215059
Montedinove AP 20 488 215547

Municipalities with at least 50000 inhabitants

An earthquake occurred to
17 Km NW of Teramo (54892 inhabitants)
52 Km NE of L'Aquila (69753 inhabitants)
54 Km NW of Montesilvano (53738 inhabitants)
61 Km NW of Pescara (121014 inhabitants)
67 Km NW of Chieti (51815 inhabitants)
77 Km E of Foligno (57155 inhabitants)
83 Km E of Terni (111501 inhabitants)
92 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 0.5 2022-09-23
23:50:35		 42.7928 13.616 16 2024-03-01
15:28:21		 Bollettino Sismico Italiano INGV 116338371
Reviewed
Rev100 		ML 0.5 2022-09-23
23:50:35		 42.7942 13.6237 14 2022-09-24
00:02:39		 Sala Sismica INGV-Roma 110076951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-09-23 23:50:35 ± 0.21
Latitude 42.7928 ± 0.0081
Longitude 13.6160 ± 0.0110
Depth (km) 16 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116338371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 906
Semi-minor axis of confidence ellipse (meter) 342
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 230
Circular confidence region, given by single value of horizontal uncertainty (meter) 910.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 163
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.33455
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 110076951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-09-24 00:02:39

ML:0.5

Field Value
Value 0.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 116338371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-04-13 11:45:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MTCE.HHZ. 2022-09-23T23:50:56.10 3.0 positive manual P 0.03 0
IV.MC2.EHZ. 2022-09-23T23:50:48.73 0.3 undecidable manual S 291 37.1295 102 0.43 67
7F.SIB1.EHZ. 2022-09-23T23:50:46.86 0.6 undecidable manual S 292 30.3474 105 0.34 46
7F.SIB3.EHZ. 2022-09-23T23:50:46.45 0.3 undecidable manual S 288 29.5482 106 0.12 72
IV.SMA1.EHZ. 2022-09-23T23:50:46.59 0.3 undecidable manual S 232 29.1486 106 0.38 68
IV.MMO1.EHZ. 2022-09-23T23:50:45.65 0.3 undecidable manual S 297 26.3514 109 0.15 72
IV.MF5.EHZ. 2022-09-23T23:50:45.67 0.6 undecidable manual S 330 25.0527 110 0.48 45
7F.SIB2.EHZ. 2022-09-23T23:50:45.81 0.3 undecidable manual S 293 27.6501 108 -0.02 74
IV.TERO.HHZ. 2022-09-23T23:50:44.00 0.3 undecidable manual S 183 18.87 119 0.31 71
IV.OFFI.HHZ. 2022-09-23T23:50:44.36 0.6 undecidable manual S 20 16.7721 124 1.16 34
IV.MC2.EHZ. 2022-09-23T23:50:42.82 0.3 undecidable manual P 291 37.1295 102 -0.19 71
7F.SIB2.EHZ. 2022-09-23T23:50:41.27 0.3 undecidable manual P 293 27.6501 108 -0.32 70
7F.SIB3.EHZ. 2022-09-23T23:50:41.60 0.3 undecidable manual P 288 29.5482 106 -0.28 70
IV.SMA1.EHZ. 2022-09-23T23:50:41.66 0.1 undecidable manual P 232 29.1486 106 -0.15 96
IV.ASCOL.HNZ. 2022-09-23T23:50:41.12 0.3 undecidable manual S 342 6.7932 152 -0.29 72
IV.MMO1.EHZ. 2022-09-23T23:50:41.14 0.1 undecidable manual P 297 26.3514 109 -0.26 94
IV.MF5.EHZ. 2022-09-23T23:50:41.17 0.1 undecidable manual P 330 25.0527 110 -0.05 99
7F.SIB1.EHZ. 2022-09-23T23:50:41.83 0.3 undecidable manual P 292 30.3474 105 -0.16 72
IV.TERO.HHZ. 2022-09-23T23:50:40.30 0.1 undecidable manual P 183 18.87 119 -0.05 100
IV.OFFI.HHZ. 2022-09-23T23:50:40.36 0.3 undecidable manual P 20 16.7721 124 0.29 71
IV.ASCOL.HNZ. 2022-09-23T23:50:38.11 0.3 undecidable manual P 342 6.7932 152 -0.92 58
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.TERO.HNN. ML:0.5 0.000021908584999999998 0.064 AML other m 2022-09-23T23:50:44.05
IV.TERO.HNE. ML:0.8 0.00003838683 0.064 AML other m 2022-09-23T23:50:44.19
IV.MMO1.EHE. ML:0.3 0.0000096187866 0.1024 AML other m 2022-09-23T23:50:46.37
IV.MMO1.EHN. ML:0.3 0.000008895814 0.128 AML other m 2022-09-23T23:50:46.53
IV.SMA1.EHN. ML:0.3 0.000009494212 0.1024 AML other m 2022-09-23T23:50:46.69
IV.SMA1.EHE. ML:0.5 0.000013455362999999999 0.0896 AML other m 2022-09-23T23:50:46.76
IV.MC2.EHN. ML:1.0 0.00003494424999999999 0.1408 AML other m 2022-09-23T23:50:49.06
IV.MC2.EHE. ML:0.6 0.000016469600000000002 0.2176 AML other m 2022-09-23T23:50:50.51
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