Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 21-09-2020 and time 09:50:40 (UTC) in region 5 km E Santo Stefano in Aspromonte (RC)

A magnitude ML 1.2 earthquake occured in region: 5 km E Santo Stefano in Aspromonte (RC), on

  • 21-09-2020 09:50:40 (UTC)
  • 21-09-2020 11:50:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.1830, 15.8480 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 5 1263 1263
Sant'Alessio in Aspromonte RC 8 343 1606
Delianuova RC 9 3352 4958
Sant'Eufemia d'Aspromonte RC 9 4120 9078
Laganadi RC 9 413 9491
Sinopoli RC 9 2089 11580
Scido RC 10 931 12511
San Roberto RC 10 1750 14261
Calanna RC 11 934 15195
San Procopio RC 12 534 15729
Bagnara Calabra RC 12 10255 25984
Cosoleto RC 13 859 26843
Cardeto RC 13 1641 28484
Santa Cristina d'Aspromonte RC 13 929 29413
Melicuccà RC 14 930 30343
Fiumara RC 14 1018 31361
Scilla RC 14 4964 36325
Roccaforte del Greco RC 16 476 36801
Campo Calabro RC 17 4536 41337
Seminara RC 17 2811 44148
Oppido Mamertina RC 17 5332 49480
Bagaladi RC 18 1039 50519
Platì RC 18 3812 54331
Villa San Giovanni RC 19 13784 68115
Varapodio RC 19 2160 70275
San Lorenzo RC 19 2640 72915
Palmi RC 20 18930 91845
Reggio di Calabria RC 20 183035 274880
San Luca RC 20 3881 278761
Condofuri RC 20 5113 283874

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km E of Reggio di Calabria (183035 inhabitants)
26 Km E of Messina (238439 inhabitants)
87 Km NE of Acireale (52622 inhabitants)
97 Km SW of Lamezia Terme (70714 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 1.2 2020-09-21
09:50:40		 38.1832 15.8483 7 2020-09-21
09:57:06		 Sala Sismica INGV-Roma 83097011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-21 09:50:40 ± 0.1
Latitude 38.1832 ± 0.0045
Longitude 15.8483 ± 0.0057
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83097011

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 540
Semi-minor axis of confidence ellipse (meter) 143
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 25
Circular confidence region, given by single value of horizontal uncertainty (meter) 540.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 99
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.42448
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 83097011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-21 09:57:06
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RCAV.EHZ. 2020-09-21T09:52:27.20 3.0 undecidable manual Sn -9.99 0
IV.TRIV.HHZ. 2020-09-21T09:52:24.88 3.0 undecidable manual Sg 1.34 0
OT.OT11.EHZ. 2020-09-21T09:52:20.56 3.0 undecidable manual Sg 6.41 0
IV.PE3.EHZ. 2020-09-21T09:52:11.18 3.0 positive manual Pn 0.72 0
IV.SACS.HNZ. 2020-09-21T09:52:06.05 3.0 undecidable manual Pn 2.48 0
IV.NARO.HHZ. 2020-09-21T09:52:03.51 3.0 undecidable manual Pn -5.52 0
IV.ARRO.EHZ. 2020-09-21T09:52:01.38 3.0 negative manual Pg 5.66 0
IV.ARVD.HHZ. 2020-09-21T09:51:59.74 3.0 undecidable manual Pn -6.32 0
IV.VVLD.HHZ. 2020-09-21T09:51:49.16 3.0 undecidable manual Pg 6.2 0
IV.MIDA.HHZ. 2020-09-21T09:51:41.81 3.0 positive manual Pg 4.41 0
IV.CMPR.HHZ. 2020-09-21T09:51:40.07 3.0 undecidable manual Sg -5.6 0
IT.LRNO.HNZ. 2020-09-21T09:51:38.68 3.0 undecidable manual Pg 1.22 0
OT.OT11.EHZ. 2020-09-21T09:51:35.20 3.0 negative manual Pg 2.51 0
IV.PZUN.HHZ. 2020-09-21T09:51:13.36 3.0 undecidable manual Pn -6.93 0
IV.CMPR.HHZ. 2020-09-21T09:51:11.59 3.0 undecidable manual Pg -5.1 0
IV.MSRU.HHZ. 2020-09-21T09:50:51.68 0.3 undecidable manual S 287 30.9468 103 -0.23 68
IV.JOPP.HHZ. 2020-09-21T09:50:49.97 0.3 undecidable manual P 4 47.1195 50 -0.1 68
IV.SOI.EHZ. 2020-09-21T09:50:48.44 0.3 undecidable manual S 124 21.6672 108 -0.38 67
IV.MSRU.HHZ. 2020-09-21T09:50:47.20 0.1 undecidable manual P 287 30.9468 103 -0.05 94
IV.MTTG.HHZ. 2020-09-21T09:50:46.15 0.1 undecidable manual P 213 23.754 107 0.28 91
IV.SOI.EHZ. 2020-09-21T09:50:45.58 0.1 undecidable manual P 124 21.6672 108 0.11 95
MN.CEL.HHZ. 2020-09-21T09:50:45.03 0.3 undecidable manual S 25 9.4794 127 0.04 74
MN.CEL.HHZ. 2020-09-21T09:50:43.44 0.1 undecidable manual P 25 9.4794 127 0.18 96
IV.GMB.BHZ. 2020-09-21T09:50:43.42 0.3 undecidable manual S 226 2.3976 162 -0.08 74
IV.GMB.BHZ. 2020-09-21T09:50:42.41 0.1 undecidable manual P 226 2.3976 162 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CEL.HHN. ML:1.3 0.000308 1.54 AML other m 2020-09-21T09:50:45.20
MN.CEL.HNN. ML:1.3 0.00029549999999999997 1.54 AML other m 2020-09-21T09:50:45.21
MN.CEL.HNE. ML:1.5 0.0004655 0.18 AML other m 2020-09-21T09:50:45.19
MN.CEL.HHE. ML:1.5 0.0004745 0.18 AML other m 2020-09-21T09:50:45.19
IV.SOI.EHN. ML:1.0 0.0000804 0.36 AML other m 2020-09-21T09:50:48.59
IV.SOI.EHE. ML:1.3 0.000149 0.32 AML other m 2020-09-21T09:50:48.71
IV.MTTG.HHE. ML:1.1 0.0000748 0.48 AML other m 2020-09-21T09:50:51.64
IV.MSRU.HHE. ML:1.4 0.0001158 1.02 AML other m 2020-09-21T09:50:52.17
IV.MSRU.HHN. ML:1.4 0.0001285 0.2 AML other m 2020-09-21T09:50:52.29
IV.MTTG.HHN. ML:1.0 0.00007099999999999999 0.84 AML other m 2020-09-21T09:50:52.96
IV.JOPP.HHN. ML:0.8 0.00002105 1.54 AML other m 2020-09-21T09:50:59.21
IV.JOPP.HHE. ML:0.7 0.00001405 0.42 AML other m 2020-09-21T09:51:01.56
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