Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.4 on date 23-08-2022 and time 20:50:51 (UTC) in region 3 km S Santo Stefano in Aspromonte (RC)

A magnitude ML 0.4 earthquake occured in region: 3 km S Santo Stefano in Aspromonte (RC), on

  • 23-08-2022 20:50:51 (UTC)
  • 23-08-2022 22:50:51 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.1420, 15.7980 at 7 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
Santo Stefano in Aspromonte RC 3 1263 1263
Sant'Alessio in Aspromonte RC 5 343 1606
Laganadi RC 6 413 2019
Cardeto RC 7 1641 3660
Calanna RC 8 934 4594
San Roberto RC 10 1750 6344
Fiumara RC 12 1018 7362
Bagaladi RC 13 1039 8401
Roccaforte del Greco RC 14 476 8877
Reggio di Calabria RC 14 183035 191912
Sant'Eufemia d'Aspromonte RC 14 4120 196032
Scilla RC 14 4964 200996
Campo Calabro RC 15 4536 205532
San Lorenzo RC 15 2640 208172
Sinopoli RC 15 2089 210261
Delianuova RC 15 3352 213613
Bagnara Calabra RC 16 10255 223868
Condofuri RC 16 5113 228981
Scido RC 16 931 229912
Villa San Giovanni RC 16 13784 243696
San Procopio RC 18 534 244230
Motta San Giovanni RC 18 6208 250438
Montebello Ionico RC 18 6214 256652
Cosoleto RC 19 859 257511
Melicuccà RC 19 930 258441
Santa Cristina d'Aspromonte RC 20 929 259370

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Reggio di Calabria (183035 inhabitants)
22 Km E of Messina (238439 inhabitants)
81 Km NE of Acireale (52622 inhabitants)
95 Km NE of Catania (314555 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 0.4 2022-08-23
20:50:51		 38.1422 15.7975 7 2022-08-23
21:23:01		 Sala Sismica INGV-Roma 108876231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-08-23 20:50:51 ± 0.21
Latitude 38.1422 ± 0.0054
Longitude 15.7975 ± 0.0057
Depth (km) 7 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 108876231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 625
Semi-minor axis of confidence ellipse (meter) 280
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 31
Circular confidence region, given by single value of horizontal uncertainty (meter) 630.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.07644
Epicentral distance of station farthest from the epicenter (degree) 0.25721
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.4

Field Value
Value 0.4
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 108876231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-08-23 21:23:01
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MSRU.HHE. 2022-08-23T20:51:01.45 0.3 undecidable manual S 298 28.5492 104 -0.57 66
IV.MPAZ.HHZ. 2022-08-23T20:51:01.42 0.3 undecidable manual S 139 27.8499 104 -0.34 70
IV.SOI.EHZ. 2022-08-23T20:50:59.75 0.3 undecidable manual S 109 23.6541 107 -0.62 65
IY.CNDF.HHE.00 2022-08-23T20:50:58.08 0.3 undecidable manual S 161 16.2726 113 0.12 75
IV.MSRU.HHE. 2022-08-23T20:50:57.69 0.1 undecidable manual P 298 28.5492 104 -0.02 100
IV.MPAZ.HHZ. 2022-08-23T20:50:57.66 0.1 positive manual P 139 27.8499 104 0.1 98
MN.CEL.HHZ. 2022-08-23T20:50:57.86 0.3 undecidable manual S 33 15.5733 114 0.13 75
IV.SOI.EHZ. 2022-08-23T20:50:56.83 0.1 positive manual P 109 23.6541 107 0.08 100
1J.FX12.HHZ.00 2022-08-23T20:50:55.73 0.3 undecidable manual S 230 9.0798 128 -0.06 77
IV.MRCB.HHE. 2022-08-23T20:50:55.61 0.3 undecidable manual S 285 8.4804 129 -0.03 77
IY.CNDF.HHE.00 2022-08-23T20:50:55.68 0.1 undecidable manual P 161 16.2726 113 0.32 96
MN.CEL.HHZ. 2022-08-23T20:50:55.58 0.6 negative manual P 33 15.5733 114 0.35 48
1J.FX12.HHZ.00 2022-08-23T20:50:54.39 1.0 negative manual P 230 9.0798 128 0.28 24
IV.MRCB.HHE. 2022-08-23T20:50:54.21 0.1 undecidable manual P 285 8.4804 129 0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CEL.HNE. ML:0.5 0.000035203985 0.192 AML other m 2022-08-23T20:50:58.30
MN.CEL.HHE. ML:0.5 0.00003483021 0.2176 AML other m 2022-08-23T20:50:58.19
MN.CEL.HHN. ML:0.2 0.00001700426 0.3072 AML other m 2022-08-23T20:50:59.12
IV.SOI.EHE. ML:0.2 0.0000109734875 0.5376 AML other m 2022-08-23T20:51:02.28
IV.SOI.EHN. ML:0.4 0.000015818290499999998 0.3328 AML other m 2022-08-23T20:51:00.12
IV.MPAZ.HHE. ML:0.7 0.000025136369999999997 0.2176 AML other m 2022-08-23T20:51:01.82
IV.MPAZ.HHN. ML:0.7 0.000025974644999999997 0.2048 AML other m 2022-08-23T20:51:02.12
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