Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 22-10-2021 and time 08:53:50 (UTC) in region Costa Calabra sud orientale (Reggio di Calabria)

A magnitude ML 2.1 earthquake occured in region: Costa Calabra sud orientale (Reggio di Calabria), on

  • 22-10-2021 08:53:50 (UTC)
  • 22-10-2021 10:53:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.7860, 16.1350 at 36 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.

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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
Palizzi RC 20 2480 2480

Municipalities with at least 50000 inhabitants

An earthquake occurred to
56 Km SE of Reggio di Calabria (183035 inhabitants)
68 Km SE of Messina (238439 inhabitants)
87 Km E of Acireale (52622 inhabitants)
97 Km E 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 2.1 2021-10-22
08:53:50		 37.7865 16.135 36 2022-03-30
13:04:39		 Bollettino Sismico Italiano INGV 101230391
Reviewed
Rev100 		ML 2.1 2021-10-22
08:53:51		 37.7972 16.1377 36 2021-10-22
09:06:32		 Sala Sismica INGV-Roma 96871171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-10-22 08:53:50 ± 0.22
Latitude 37.7865 ± 0.0126
Longitude 16.1350 ± 0.0171
Depth (km) 36 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 101230391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1822
Semi-minor axis of confidence ellipse (meter) 857
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 311
Circular confidence region, given by single value of horizontal uncertainty (meter) 1820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 205
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.47489
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.4
Num. used stations 32
Type of magnitude ML
Reference to an origin 101230391
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-21 14:35:44

ML:2.1

Field Value
Value 2.1
Uncertainty 0.4
Num. used stations 32
Type of magnitude ML
Reference to an origin 96871171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-10-22 09:06:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.RIBO.EHZ.01 2021-10-22T08:55:46.73 3.0 undecidable manual Pg 22.629999 0
OT.OT17.EHZ. 2021-10-22T08:55:28.74 3.0 undecidable manual Sn -5.84 0
IV.MMO1.EHZ. 2021-10-22T08:55:21.93 3.0 undecidable manual Pg 10.48 0
IT.RMMM.HGZ. 2021-10-22T08:55:21.23 3.0 undecidable manual Pg 17.01 0
IV.ARVD.HHZ. 2021-10-22T08:55:17.40 3.0 positive manual Pn -3.13 0
IV.MML1.EHZ. 2021-10-22T08:55:13.55 3.0 undecidable manual Pn -2.07 0
IV.MARS.HNZ. 2021-10-22T08:55:08.64 3.0 undecidable manual Sn 0.9 0
IV.LPEL.HHZ. 2021-10-22T08:54:52.53 3.0 positive manual Pn -4.81 0
AC.VLO.HHZ. 2021-10-22T08:54:48.64 3.0 undecidable manual Pn 1.91 0
IV.MESG.HHZ. 2021-10-22T08:54:39.76 3.0 negative manual Pn 1.85 0
IV.AMUR.HHZ. 2021-10-22T08:54:37.92 3.0 negative manual Pn -0.52 0
IV.NOCI.HHZ. 2021-10-22T08:54:36.39 3.0 negative manual Pn -1.3 0
IV.HLNI.HHZ. 2021-10-22T08:54:23.48 0.6 undecidable manual S 247 121.1898 54 -1.13 31
IV.SSY.HHZ. 2021-10-22T08:54:22.89 0.6 undecidable manual S 234 116.5944 54 -0.72 37
IV.AIO.HHZ. 2021-10-22T08:54:16.29 0.6 undecidable manual S 285 81.5517 54 0.22 47
IV.MPNC.HHZ. 2021-10-22T08:54:15.52 0.6 undecidable manual S 301 79.1652 54 -0.04 49
MN.TIP.HHE. 2021-10-22T08:54:15.55 0.6 undecidable manual P 19 163.7139 54 -0.13 39
IV.FERC.HHZ.00 2021-10-22T08:54:14.14 0.3 undecidable manual S 360 73.8705 54 -0.27 71
IV.SERS.HHE. 2021-10-22T08:54:13.85 0.6 undecidable manual P 19 146.742 54 0.28 40
IV.SELL.HHE. 2021-10-22T08:54:13.34 0.6 undecidable manual P 18 139.4604 54 0.68 37
IV.MSFR.HHZ. 2021-10-22T08:54:13.28 0.6 undecidable manual P 282 137.862 54 0.82 35
IV.MCPD.HHZ. 2021-10-22T08:54:11.64 0.6 undecidable manual P 287 128.2716 54 0.37 41
IV.HAVL.HHZ. 2021-10-22T08:54:11.68 0.6 undecidable manual P 225 127.9719 54 0.44 41
IV.MUCR.HHZ. 2021-10-22T08:54:10.08 0.3 undecidable manual P 285 113.997 54 0.59 60
IV.SSY.HHZ. 2021-10-22T08:54:09.79 0.3 undecidable manual P 234 116.5944 54 -0.03 68
MN.CEL.HHZ. 2021-10-22T08:54:09.64 0.3 undecidable manual S 338 56.5989 118 -0.65 66
IV.HLNI.HHZ. 2021-10-22T08:54:09.99 0.3 undecidable manual P 247 121.1898 54 -0.4 62
IV.MTTG.HHZ. 2021-10-22T08:54:08.00 0.6 undecidable manual S 302 45.0216 125 0.35 49
IV.HAGA.HHZ. 2021-10-22T08:54:07.86 0.6 undecidable manual P 237 102.6195 54 -0.22 45
IV.NOV.HHZ. 2021-10-22T08:54:07.24 0.3 undecidable manual P 287 91.3419 54 0.56 63
IV.JOPP.HHZ. 2021-10-22T08:54:06.50 0.3 undecidable manual P 347 93.5397 54 -0.45 66
IV.MILZ.HHZ. 2021-10-22T08:54:06.48 0.3 undecidable manual P 305 95.5377 54 -0.72 59
IV.AIO.HHZ. 2021-10-22T08:54:05.91 0.3 undecidable manual P 285 81.5517 54 0.45 67
IV.MPNC.HHZ. 2021-10-22T08:54:05.02 0.3 undecidable manual P 301 79.1652 54 -0.14 72
IV.PLAC.HHZ. 2021-10-22T08:54:05.24 0.3 undecidable manual P 20 78.1662 54 0.21 71
IV.SOI.EHZ. 2021-10-22T08:54:04.95 0.3 undecidable manual S 348 32.5452 135 -0.14 79
IV.FERC.HHZ.00 2021-10-22T08:54:04.42 0.3 undecidable manual P 360 73.8705 54 -0.09 74
MN.CEL.HHZ. 2021-10-22T08:54:01.77 0.1 positive manual P 338 56.5989 118 -0.35 96
IV.MTTG.HHZ. 2021-10-22T08:54:00.85 0.1 undecidable manual P 302 45.0216 125 0.25 100
IV.SOI.EHZ. 2021-10-22T08:53:59.46 0.1 positive manual P 348 32.5452 135 0.34 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SOI.EHE. ML:2.0 0.0002475 0.38 AML other m 2021-10-22T08:54:05.40
IV.PLAC.HHE. ML:1.7 0.00006204999999999999 0.28 AML other m 2021-10-22T08:54:05.51
IV.SOI.EHN. ML:1.8 0.00018022250000000002 0.2752 AML other m 2021-10-22T08:54:06.15
IV.MTTG.HHN. ML:2.5 0.000654 0.54 AML other m 2021-10-22T08:54:09.04
IV.MTTG.HHE. ML:2.2 0.00037150000000000003 0.4 AML other m 2021-10-22T08:54:09.43
MN.CEL.HHE. ML:2.5 0.00060278285 0.2816 AML other m 2021-10-22T08:54:10.14
MN.CEL.HNE. ML:2.5 0.0005975 0.26 AML other m 2021-10-22T08:54:10.16
MN.CEL.HHN. ML:2.2 0.00031296305 0.32 AML other m 2021-10-22T08:54:11.20
MN.CEL.HNN. ML:2.2 0.0003024154 0.32 AML other m 2021-10-22T08:54:11.20
IV.FERC.HHE.00 ML:3.2 0.0023705500000000003 0.5568 AML other m 2021-10-22T08:54:15.02
IV.MPNC.HHE. ML:2.6 0.000506 0.52 AML other m 2021-10-22T08:54:16.17
IV.MPNC.HHN. ML:2.6 0.00047299999999999995 0.58 AML other m 2021-10-22T08:54:16.45
IV.FERC.HHN.00 ML:3.5 0.004014088 0.6016 AML other m 2021-10-22T08:54:16.20
IV.JOPP.HHE. ML:1.5 0.00003007692 0.1792 AML other m 2021-10-22T08:54:17.38
IV.PLAC.HHN. ML:1.7 0.00006225 0.36 AML other m 2021-10-22T08:54:18.20
IV.JOPP.HHN. ML:1.7 0.000050573449999999996 0.32 AML other m 2021-10-22T08:54:18.28
IV.AIO.HHN. ML:2.1 0.000164 0.42 AML other m 2021-10-22T08:54:20.30
IV.MILZ.HHE. ML:2.7 0.000528 0.44 AML other m 2021-10-22T08:54:21.53
IV.AIO.HHE. ML:2.0 0.00011205000000000001 0.36 AML other m 2021-10-22T08:54:21.42
IV.MILZ.HHN. ML:2.3 0.0001735 1.6 AML other m 2021-10-22T08:54:22.08
IV.HAGA.HHN. ML:1.8 0.000056281739999999996 0.0832 AML other m 2021-10-22T08:54:23.61
IV.HAGA.HHE. ML:1.7 0.000046886685 1.8592 AML other m 2021-10-22T08:54:23.98
IV.SSY.HHN. ML:2.8 0.0004456158 0.1024 AML other m 2021-10-22T08:54:24.56
IV.HLNI.HHN. ML:2.2 0.0001085 0.26 AML other m 2021-10-22T08:54:24.65
IV.HLNI.HHE. ML:2.1 0.00008776408500000001 0.096 AML other m 2021-10-22T08:54:25.69
IV.MUCR.HHE. ML:1.8 0.000046981325 0.3392 AML other m 2021-10-22T08:54:27.48
IV.HAVL.HHE. ML:2.1 0.00008425397000000001 0.1408 AML other m 2021-10-22T08:54:28.02
IV.MCPD.HHN. ML:1.8 0.000038 0.36 AML other m 2021-10-22T08:54:28.09
IV.SSY.HHE. ML:2.4 0.00016395100000000002 0.16 AML other m 2021-10-22T08:54:28.51
IV.MUCR.HHN. ML:2.0 0.0000748 0.76 AML other m 2021-10-22T08:54:31.51
IV.HAVL.HHN. ML:2.2 0.00009667762000000001 0.096 AML other m 2021-10-22T08:54:32.43
IV.MCPD.HHE. ML:2.0 0.000059250000000000004 0.74 AML other m 2021-10-22T08:54:34.58
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
Waveforms Seismic signals in miniseed + resp format Download