Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 21-06-2021 and time 04:26:20 (Italy) in region 1 km N San Roberto (RC)

A magnitude ML 0.9 earthquake occured in region: 1 km N San Roberto (RC), on

  • 21-06-2021 02:26:20 (UTC)
  • 21-06-2021 04:26:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.2260, 15.7390 at 12 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
San Roberto RC 2 1750 1750
Scilla RC 4 4964 6714
Fiumara RC 4 1018 7732
Calanna RC 5 934 8666
Laganadi RC 6 413 9079
Sant'Alessio in Aspromonte RC 6 343 9422
Campo Calabro RC 7 4536 13958
Santo Stefano in Aspromonte RC 8 1263 15221
Bagnara Calabra RC 9 10255 25476
Villa San Giovanni RC 9 13784 39260
Sant'Eufemia d'Aspromonte RC 11 4120 43380
Sinopoli RC 13 2089 45469
San Procopio RC 15 534 46003
Melicuccà RC 15 930 46933
Reggio di Calabria RC 15 183035 229968
Cardeto RC 16 1641 231609
Delianuova RC 16 3352 234961
Messina ME 16 238439 473400
Seminara RC 17 2811 476211
Scido RC 17 931 477142
Cosoleto RC 18 859 478001
Palmi RC 18 18930 496931

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km NE of Reggio di Calabria (183035 inhabitants)
16 Km E of Messina (238439 inhabitants)
85 Km NE of Acireale (52622 inhabitants)
98 Km SW of Lamezia Terme (70714 inhabitants)
99 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 0.9 2021-06-21
02:26:20		 38.2257 15.739 12 2021-06-21
02:33:57		 Sala Sismica INGV-Roma 91628771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-06-21 02:26:20 ± 0.08
Latitude 38.2257 ± 0.0063
Longitude 15.7390 ± 0.0057
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 91628771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 556
Semi-minor axis of confidence ellipse (meter) 397
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 192
Circular confidence region, given by single value of horizontal uncertainty (meter) 560.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 106
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) 0.24
Epicentral distance of station closest to the epicenter (degree) 0.03597
Epicentral distance of station farthest from the epicenter (degree) 0.40110
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:0.9

Field Value
Value 0.9
Uncertainty 0.4
Num. used stations 6
Type of magnitude ML
Reference to an origin 91628771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-06-21 02:33:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MILZ.HHE. 2021-06-21T02:26:34.22 0.1 undecidable manual S 277 44.5221 91 -0.2 92
IV.MPNC.HHZ. 2021-06-21T02:26:32.05 0.3 undecidable manual S 256 34.8429 92 0.22 73
IV.SOI.EHZ. 2021-06-21T02:26:30.58 0.6 undecidable manual S 121 32.2455 92 -0.58 43
IV.MTTG.HHZ. 2021-06-21T02:26:28.98 0.3 undecidable manual S 188 24.9528 93 -0.21 71
IV.MILZ.HHE. 2021-06-21T02:26:28.50 0.3 undecidable manual P 277 44.5221 91 0.14 72
IV.MSRU.HHZ. 2021-06-21T02:26:27.88 0.1 undecidable manual S 282 20.5683 95 -0.15 97
IV.MPNC.HHZ. 2021-06-21T02:26:26.87 0.3 undecidable manual P 256 34.8429 92 0.01 73
MN.CEL.HHZ. 2021-06-21T02:26:26.19 0.3 undecidable manual S 74 14.0748 107 -0.13 76
IV.SOI.EHZ. 2021-06-21T02:26:26.69 0.3 undecidable manual P 121 32.2455 92 0.22 72
IV.MTTG.HHZ. 2021-06-21T02:26:25.48 0.1 undecidable manual P 188 24.9528 93 0.14 100
IV.SICLA.EHE. 2021-06-21T02:26:24.01 0.1 undecidable manual S 328 3.996 156 -0.32 99
IV.MSRU.HHZ. 2021-06-21T02:26:24.72 0.3 undecidable manual P 282 20.5683 95 0.05 76
MN.CEL.HHZ. 2021-06-21T02:26:23.85 0.1 undecidable manual P 74 14.0748 107 0.17 99
IV.SICLA.EHE. 2021-06-21T02:26:22.88 0.1 undecidable manual P 328 3.996 156 0.35 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CEL.HHN. ML:0.3 0.000020549999999999998 1.12 AML other m 2021-06-21T02:26:26.93
MN.CEL.HHE. ML:0.3 0.000022449999999999997 0.66 AML other m 2021-06-21T02:26:27.14
IV.MSRU.HHN. ML:1.1 0.0000847 0.52 AML other m 2021-06-21T02:26:28.33
IV.MSRU.HHE. ML:1.2 0.0001145 1.18 AML other m 2021-06-21T02:26:29.60
IV.MTTG.HHN. ML:0.8 0.0000419 0.46 AML other m 2021-06-21T02:26:31.60
IV.MTTG.HHE. ML:1.0 0.00005855000000000001 1.5 AML other m 2021-06-21T02:26:31.14
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