Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 24-01-2021 and time 06:31:25 (Italy) 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

  • 24-01-2021 05:31:25 (UTC)
  • 24-01-2021 06:31:25 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8020, 16.2020 at 37 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
60 Km SE of Reggio di Calabria (183035 inhabitants)
72 Km SE of Messina (238439 inhabitants)
93 Km E of Acireale (52622 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 2021-01-24
05:31:25		 37.8017 16.2015 37 2021-07-12
16:55:09		 Bollettino Sismico Italiano INGV 89762671
Reviewed
Rev100 		ML 2.0 2021-01-24
05:31:25		 37.7692 16.2768 30 2021-01-24
05:43:52		 Sala Sismica INGV-Roma 86517931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-24 05:31:25 ± 0.27
Latitude 37.8017 ± 0.0117
Longitude 16.2015 ± 0.0239
Depth (km) 37 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89762671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2309
Semi-minor axis of confidence ellipse (meter) 650
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 299
Circular confidence region, given by single value of horizontal uncertainty (meter) 2310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 210
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.35
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.40654
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 89762671
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-04 10:46:37

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 86517931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-24 05:43:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2021-01-24T05:33:11.66 3.0 negative manual Pg 16.66 0
IV.CSP1.EHZ. 2021-01-24T05:33:02.81 3.0 undecidable manual Pg 11.2 0
CR.STON.BHZ. 2021-01-24T05:32:39.20 3.0 undecidable manual Pn -4.05 0
IV.MTMR.EHZ. 2021-01-24T05:32:21.20 3.0 undecidable manual Pg 4.07 0
IV.MCEL.HHZ. 2021-01-24T05:32:12.90 3.0 undecidable manual Pg 5.62 0
IV.NOCI.HHZ. 2021-01-24T05:32:10.45 3.0 positive manual Pn -3.52 0
IV.HMDC.HHZ. 2021-01-24T05:32:07.54 1.0 undecidable manual S 234 156.1215 54 0.5 18
IV.HAVL.HHZ. 2021-01-24T05:32:02.21 0.6 undecidable manual S 226 133.3665 54 0.08 42
IV.HLNI.HHZ. 2021-01-24T05:32:00.26 0.6 undecidable manual S 247 127.2726 54 -0.56 38
IV.SSY.HHZ. 2021-01-24T05:31:59.32 0.6 undecidable manual S 235 122.2887 54 -0.43 39
IV.HCRL.HHN. 2021-01-24T05:31:58.44 0.6 undecidable manual S 241 117.7932 54 -0.34 41
IV.HSRS.HNN. 2021-01-24T05:31:57.78 0.6 undecidable manual S 228 116.6943 54 -0.77 35
IV.HAGA.HHZ. 2021-01-24T05:31:56.22 0.3 undecidable manual S 238 108.4137 54 -0.54 59
IV.JOPP.HHZ. 2021-01-24T05:31:52.89 0.6 undecidable manual S 343 93.4398 54 -0.64 39
IV.HMDC.HHZ. 2021-01-24T05:31:50.03 0.3 undecidable manual P 234 156.1215 54 0.35 55
IV.PLAC.HHZ. 2021-01-24T05:31:49.21 0.6 undecidable manual S 16 74.7696 54 -0.29 45
IV.FERC.HNN. 2021-01-24T05:31:49.10 0.6 undecidable manual S 355 72.4719 54 0.08 47
IV.HAVL.HHZ. 2021-01-24T05:31:47.00 0.3 undecidable manual P 226 133.3665 54 0.15 61
IV.SELL.HHZ. 2021-01-24T05:31:47.49 0.3 undecidable manual P 16 136.1637 54 0.29 59
IV.HLNI.HHZ. 2021-01-24T05:31:46.01 0.1 undecidable manual P 247 127.2726 54 -0.08 84
MN.CEL.HHZ. 2021-01-24T05:31:45.72 0.6 undecidable manual S 332 57.498 118 0.15 48
IV.HCRL.HHN. 2021-01-24T05:31:45.08 0.3 undecidable manual P 241 117.7932 54 0.17 63
IV.SSY.HHZ. 2021-01-24T05:31:45.44 0.3 undecidable manual P 235 122.2887 54 -0.03 64
IV.HSRS.HNN. 2021-01-24T05:31:44.77 0.3 undecidable manual P 228 116.6943 54 -0.01 66
IV.HAGA.HHZ. 2021-01-24T05:31:43.82 0.3 undecidable manual P 238 108.4137 54 0.07 66
IV.AIO.HHE. 2021-01-24T05:31:42.52 0.1 undecidable manual P 283 86.8464 54 1.46 54
IV.JOPP.HHZ. 2021-01-24T05:31:41.83 0.3 undecidable manual P 343 93.4398 54 -0.05 68
IV.MPNC.HHZ. 2021-01-24T05:31:41.47 0.3 undecidable manual P 298 83.4498 54 0.83 56
IV.MSRU.HHZ. 2021-01-24T05:31:40.72 0.3 undecidable manual P 310 79.365 54 0.59 62
IV.SOI.EHZ. 2021-01-24T05:31:39.89 0.3 undecidable manual S 337 32.745 135 -0.34 72
IV.FERC.HNN. 2021-01-24T05:31:39.58 0.6 undecidable manual P 355 72.4719 54 0.3 45
IV.PLAC.HHZ. 2021-01-24T05:31:38.92 0.1 undecidable manual P 16 74.7696 54 -0.64 81
MN.CEL.HHZ. 2021-01-24T05:31:37.20 0.1 undecidable manual P 332 57.498 118 -0.09 96
IV.SOI.EHZ. 2021-01-24T05:31:34.07 0.1 undecidable manual P 337 32.745 135 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SOI.EHE. ML:2.0 0.000263 0.94 AML other m 2021-01-24T05:31:40.75
IV.SOI.EHN. ML:1.8 0.0001915 0.26 AML other m 2021-01-24T05:31:40.96
MN.CEL.HHE. ML:2.2 0.000293 1.24 AML other m 2021-01-24T05:31:46.18
MN.CEL.HHN. ML:2.0 0.000187 0.44 AML other m 2021-01-24T05:31:47.79
MN.CEL.HNE. ML:2.1 0.000205640035 0.3616 AML other m 2021-01-24T05:31:46.29
IV.SSY.HHN. ML:2.8 0.00047392355 0.0992 AML other m 2021-01-24T05:32:02.04
IV.HLNI.HHE. ML:1.9 0.000055146035 0.16 AML other m 2021-01-24T05:32:01.37
IV.HAVL.HHE. ML:2.0 0.00005322637500000001 0.5408 AML other m 2021-01-24T05:32:02.74
IV.HAVL.HHN. ML:2.2 0.00009141942999999999 0.08 AML other m 2021-01-24T05:32:06.84
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