Earthquake with magnitude of ML 1.7 on date 17-10-2021 and time 23:21:06 (UTC) in region 4 km SW Calanna (RC)

A magnitude ML 1.7 earthquake occured in region: 4 km SW Calanna (RC), on

  • 17-10-2021 23:21:06 (UTC)
  • 18-10-2021 01:21:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.1670, 15.6860 at 11 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Calanna RC 4 934 934
Fiumara RC 5 1018 1952
Laganadi RC 5 413 2365
Campo Calabro RC 6 4536 6901
Sant'Alessio in Aspromonte RC 6 343 7244
San Roberto RC 7 1750 8994
Villa San Giovanni RC 7 13784 22778
Reggio di Calabria RC 7 183035 205813
Santo Stefano in Aspromonte RC 9 1263 207076
Scilla RC 10 4964 212040
Cardeto RC 12 1641 213681
Messina ME 12 238439 452120
Bagnara Calabra RC 17 10255 462375
Sant'Eufemia d'Aspromonte RC 18 4120 466495
Motta San Giovanni RC 18 6208 472703
Bagaladi RC 20 1039 473742
Sinopoli RC 20 2089 475831

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km NE of Reggio di Calabria (183035 inhabitants)
12 Km E of Messina (238439 inhabitants)
77 Km NE of Acireale (52622 inhabitants)
91 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
Bulletin
Rev1000
ML 1.7 2021-10-17
23:21:06
38.1673 15.6857 11 2022-03-30
13:04:14
Bollettino Sismico Italiano INGV 97064851
Reviewed
Rev100
ML 1.7 2021-10-17
23:21:05
38.2102 15.6878 4 2021-10-17
23:36:26
Sala Sismica INGV-Roma 96704201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-17 23:21:06 ± 0.16
Latitude 38.1673 ± 0.0090
Longitude 15.6857 ± 0.0057
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 97064851

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 899
Semi-minor axis of confidence ellipse (meter) 508
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 168
Circular confidence region, given by single value of horizontal uncertainty (meter) 900.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.04052
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 17
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 11
Type of magnitude ML
Reference to an origin 97064851
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-21 17:40:37

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 96704201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-17 23:36:26
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.OT17.EHZ. 2021-10-17T23:21:59.89 3.0 positive manual Pn -0.16 0
IV.VULT.HHZ. 2021-10-17T23:21:49.74 3.0 negative manual Pn -0.16 0
IV.IVGP.HHE. 2021-10-17T23:21:26.97 0.6 undecidable manual S 292 68.0763 50 -0.08 46
IV.IVPL.HHZ. 2021-10-17T23:21:26.91 0.3 undecidable manual S 291 65.6898 50 0.5 63
IV.HLNI.HHZ. 2021-10-17T23:21:26.59 0.1 undecidable manual P 218 115.4955 50 1.01 62
IV.IVUG.HHE. 2021-10-17T23:21:26.58 0.3 undecidable manual S 293 65.9895 50 0.09 69
IV.IFIL.HHZ. 2021-10-17T23:21:24.28 1.0 undecidable manual P 295 106.116 50 0.14 21
IV.NOV.HHE. 2021-10-17T23:21:22.71 0.6 undecidable manual S 252 50.4162 50 0.39 44
IV.FERC.HHE.00 2021-10-17T23:21:22.70 0.6 undecidable manual S 50 49.8168 50 0.52 43
IV.JOPP.HHZ. 2021-10-17T23:21:22.65 0.6 undecidable manual S 20 51.8037 50 -0.04 47
IV.MSFR.HHE. 2021-10-17T23:21:22.94 0.1 undecidable manual P 262 96.6255 50 0.26 83
IV.EPIT.HHZ. 2021-10-17T23:21:19.31 1.0 undecidable manual P 235 67.6767 50 1.09 16
IV.PLAC.HHZ. 2021-10-17T23:21:19.11 0.3 undecidable manual P 64 72.5718 50 0.14 67
IV.MILZ.HHZ. 2021-10-17T23:21:19.50 0.3 undecidable manual S 286 41.2254 50 -0.39 67
IV.ILOS.HHZ. 2021-10-17T23:21:19.36 0.3 undecidable manual P 296 71.2731 50 0.6 60
IV.IVGP.HHE. 2021-10-17T23:21:18.10 0.3 undecidable manual P 292 68.0763 50 -0.17 67
IV.MUCR.HHZ. 2021-10-17T23:21:18.96 0.3 undecidable manual P 259 72.1722 50 0.05 68
IV.IVUG.HHE. 2021-10-17T23:21:17.81 0.1 undecidable manual P 293 65.9895 50 -0.14 90
IV.IVPL.HHZ. 2021-10-17T23:21:17.74 0.1 undecidable manual P 291 65.6898 50 -0.17 90
IV.SOI.EHZ. 2021-10-17T23:21:17.39 0.6 undecidable manual S 108 33.8439 50 -0.51 44
IV.MPNC.HHZ. 2021-10-17T23:21:16.12 0.3 undecidable manual S 266 29.1486 50 -0.53 66
IV.JOPP.HHZ. 2021-10-17T23:21:15.76 0.3 undecidable manual P 20 51.8037 50 0 72
IV.FERC.HHE.00 2021-10-17T23:21:15.47 0.3 undecidable manual P 50 49.8168 50 0 72
IV.NOV.HHE. 2021-10-17T23:21:15.27 0.1 undecidable manual P 252 50.4162 50 -0.27 91
IV.MILZ.HHZ. 2021-10-17T23:21:13.88 0.1 undecidable manual P 286 41.2254 50 -0.26 92
IV.MTTG.HHZ. 2021-10-17T23:21:13.48 0.3 undecidable manual S 176 18.2706 120 -0.13 74
IV.MPNC.HHZ. 2021-10-17T23:21:12.00 0.1 positive manual P 266 29.1486 50 -0.28 94
IV.SOI.EHZ. 2021-10-17T23:21:12.79 0.1 positive manual P 108 33.8439 50 -0.21 95
IV.MTTG.HHZ. 2021-10-17T23:21:10.59 0.1 undecidable manual P 176 18.2706 120 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTTG.HHN. ML:1.6 0.000291 1.44 AML other m 2021-10-17T23:21:13.82
IV.MTTG.HHE. ML:1.4 0.000202 0.42 AML other m 2021-10-17T23:21:14.94
IV.MPNC.HHE. ML:1.8 0.0003125 1.02 AML other m 2021-10-17T23:21:17.06
IV.MPNC.HHN. ML:1.8 0.00033999999999999997 0.32 AML other m 2021-10-17T23:21:17.77
IV.SOI.EHN. ML:1.5 0.00013900000000000002 1.16 AML other m 2021-10-17T23:21:17.22
IV.SOI.EHE. ML:1.3 0.0000852 1.4 AML other m 2021-10-17T23:21:18.80
IV.MILZ.HHE. ML:2.1 0.000407 1.06 AML other m 2021-10-17T23:21:21.80
IV.MILZ.HHN. ML:1.8 0.00020649999999999998 0.58 AML other m 2021-10-17T23:21:21.94
IV.IVPL.HHE. ML:2.0 0.000182 0.72 AML other m 2021-10-17T23:21:28.18
IV.IVPL.HHN. ML:1.9 0.0001412 0.72 AML other m 2021-10-17T23:21:28.56
IV.MUCR.HHN. ML:1.3 0.00003515 0.68 AML other m 2021-10-17T23:21:32.57
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