Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 21-09-2020 and time 00:00:32 (UTC) in region 6 km E Santo Stefano in Aspromonte (RC)

A magnitude ML 1.8 earthquake occured in region: 6 km E Santo Stefano in Aspromonte (RC), on

  • 21-09-2020 00:00:32 (UTC)
  • 21-09-2020 02:00:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.1880, 15.8500 at 8 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 6 1263 1263
Sant'Alessio in Aspromonte RC 8 343 1606
Sant'Eufemia d'Aspromonte RC 8 4120 5726
Delianuova RC 8 3352 9078
Sinopoli RC 9 2089 11167
Laganadi RC 10 413 11580
Scido RC 10 931 12511
San Roberto RC 10 1750 14261
San Procopio RC 11 534 14795
Calanna RC 11 934 15729
Bagnara Calabra RC 12 10255 25984
Cosoleto RC 12 859 26843
Santa Cristina d'Aspromonte RC 13 929 27772
Melicuccà RC 13 930 28702
Cardeto RC 14 1641 30343
Scilla RC 14 4964 35307
Fiumara RC 14 1018 36325
Roccaforte del Greco RC 16 476 36801
Oppido Mamertina RC 17 5332 42133
Seminara RC 17 2811 44944
Campo Calabro RC 17 4536 49480
Platì RC 17 3812 53292
Bagaladi RC 18 1039 54331
Varapodio RC 18 2160 56491
Palmi RC 19 18930 75421
Villa San Giovanni RC 19 13784 89205
San Luca RC 20 3881 93086
San Lorenzo RC 20 2640 95726
Reggio di Calabria RC 20 183035 278761

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)
88 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
Bulletin
Rev1000 		ML 1.8 2020-09-21
00:00:32		 38.1882 15.85 8 2021-02-26
14:55:55		 Bollettino Sismico Italiano INGV 83125541
Reviewed
Rev100 		ML 1.8 2020-09-21
00:00:32		 38.1873 15.8482 8 2020-09-21
00:08:07		 Sala Sismica INGV-Roma 83083961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-21 00:00:32 ± 0.06
Latitude 38.1882 ± 0.0045
Longitude 15.8500 ± 0.0046
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83125541

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 502
Semi-minor axis of confidence ellipse (meter) 398
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 153
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
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) 0.02608
Epicentral distance of station farthest from the epicenter (degree) 1.10167
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 14
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 22
Type of magnitude ML
Reference to an origin 83125541
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-12-15 12:41:12

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 23
Type of magnitude ML
Reference to an origin 83083961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-21 00:08:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAR1.HHZ. 2020-09-21T00:00:52.80 0.3 undecidable manual P 15 122.2887 50 -0.22 59
IV.ILOS.HHZ. 2020-09-21T00:00:47.71 0.3 undecidable manual P 290 83.5497 50 0.65 57
IV.MPNC.HHE. 2020-09-21T00:00:47.13 0.6 undecidable manual S 264 43.623 50 -0.04 48
IV.IVPL.HHZ. 2020-09-21T00:00:46.48 0.1 undecidable manual P 286 78.5658 50 0.19 87
IV.FERC.HNE. 2020-09-21T00:00:45.59 0.6 undecidable manual S 39 38.0286 50 -0.1 48
IV.NOV.HHZ. 2020-09-21T00:00:44.04 0.3 undecidable manual P 254 64.7907 50 -0.12 68
IV.PLAC.HHZ. 2020-09-21T00:00:43.53 0.1 undecidable manual P 60 58.7967 50 0.28 89
IV.MSRU.HHZ. 2020-09-21T00:00:43.03 0.6 undecidable manual S 286 30.9468 104 -0.38 46
IV.MILZ.HHE. 2020-09-21T00:00:42.43 0.3 undecidable manual P 280 54.7008 50 -0.18 68
IV.JOPP.HHZ. 2020-09-21T00:00:41.12 0.1 undecidable manual P 4 46.5201 50 -0.24 91
IV.MTTG.HHZ. 2020-09-21T00:00:41.12 0.3 undecidable manual S 213 24.3534 108 -0.09 73
IV.MPNC.HHE. 2020-09-21T00:00:40.67 0.1 undecidable manual P 264 43.623 50 -0.23 92
IV.FERC.HNE. 2020-09-21T00:00:39.92 0.3 undecidable manual P 39 38.0286 50 -0.13 71
IV.SOI.EHZ. 2020-09-21T00:00:39.96 0.3 undecidable manual S 126 21.9669 110 -0.45 68
IV.MSRU.HHZ. 2020-09-21T00:00:38.76 0.1 positive manual P 286 30.9468 104 0.03 98
IV.SOI.EHZ. 2020-09-21T00:00:37.21 0.1 positive manual P 126 21.9669 110 0.21 96
IV.MTTG.HHZ. 2020-09-21T00:00:37.72 0.1 positive manual P 213 24.3534 108 0.26 95
MN.CEL.HNZ. 2020-09-21T00:00:36.32 0.3 undecidable manual S 26 8.88 131 -0.12 75
MN.CEL.HNZ. 2020-09-21T00:00:35.00 0.1 positive manual P 26 8.88 131 0.29 96
IV.GMB.BHZ. 2020-09-21T00:00:35.03 0.3 undecidable manual S 220 2.8971 160 -0.19 75
IV.GMB.BHZ. 2020-09-21T00:00:34.17 0.1 undecidable manual P 220 2.8971 160 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CEL.HHE. ML:2.0 0.0015899999999999998 0.18 AML other m 2020-09-21T00:00:36.84
MN.CEL.HNE. ML:2.0 0.001545 0.54 AML other m 2020-09-21T00:00:36.84
MN.CEL.HHN. ML:1.6 0.0007230000000000001 0.46 AML other m 2020-09-21T00:00:37.28
MN.CEL.HNN. ML:1.6 0.0007155 0.46 AML other m 2020-09-21T00:00:37.28
IV.SOI.EHN. ML:1.7 0.00036250000000000003 0.38 AML other m 2020-09-21T00:00:40.29
IV.SOI.EHE. ML:1.6 0.0002585 0.6 AML other m 2020-09-21T00:00:40.35
IV.MTTG.HHE. ML:1.6 0.00027800000000000004 0.18 AML other m 2020-09-21T00:00:41.22
IV.MTTG.HHN. ML:1.7 0.00029549999999999997 0.84 AML other m 2020-09-21T00:00:41.25
IV.MSRU.HHN. ML:2.0 0.0004355 1.58 AML other m 2020-09-21T00:00:43.11
IV.MSRU.HHE. ML:1.9 0.0003565 0.34 AML other m 2020-09-21T00:00:44.09
IV.JOPP.HHN. ML:1.4 0.00008060000000000001 0.92 AML other m 2020-09-21T00:00:51.59
IV.JOPP.HHE. ML:1.4 0.00007395000000000001 0.26 AML other m 2020-09-21T00:00:52.34
IV.PLAC.HHE. ML:1.6 0.0000789 0.68 AML other m 2020-09-21T00:00:54.11
IV.PLAC.HHN. ML:1.5 0.00006755 1.08 AML other m 2020-09-21T00:00:54.85
IV.IVPL.HHE. ML:2.1 0.00017649999999999998 0.48 AML other m 2020-09-21T00:00:58.95
IV.ILOS.HNE. ML:2.2 0.00020999999999999998 0.8 AML other m 2020-09-21T00:01:01.53
IV.ILOS.HHE. ML:2.3 0.0002495 0.78 AML other m 2020-09-21T00:01:01.93
IV.ILOS.HNN. ML:2.4 0.00034599999999999995 0.62 AML other m 2020-09-21T00:01:02.54
IV.ILOS.HHN. ML:2.4 0.00033699999999999995 0.64 AML other m 2020-09-21T00:01:02.56
IV.IVPL.HHN. ML:2.1 0.00018449999999999999 0.5 AML other m 2020-09-21T00:01:02.58
IV.CAR1.HHN. ML:1.7 0.00003705 0.92 AML other m 2020-09-21T00:01:11.73
IV.CAR1.HHE. ML:1.7 0.0000385 0.5 AML other m 2020-09-21T00:01:14.06
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