Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 05-12-2021 and time 10:18:38 (Italy) in region Stretto di Messina (Reggio di Calabria, Messina)

A magnitude ML 1.4 earthquake occured in region: Stretto di Messina (Reggio di Calabria, Messina), on

  • 05-12-2021 09:18:38 (UTC)
  • 05-12-2021 10:18:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.0850, 15.5670 at 10 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
Reggio di Calabria RC 7 183035 183035
Scaletta Zanclea ME 10 2140 185175
Itala ME 12 1640 186815
Messina ME 12 238439 425254
Alì ME 14 768 426022
Motta San Giovanni RC 15 6208 432230
Alì Terme ME 15 2539 434769
Villa San Giovanni RC 16 13784 448553
Rometta ME 16 6650 455203
Campo Calabro RC 17 4536 459739
Saponara ME 17 3988 463727
Nizza di Sicilia ME 17 3667 467394
Fiumedinisi ME 17 1409 468803
Cardeto RC 18 1641 470444
Calanna RC 18 934 471378
Fiumara RC 18 1018 472396
Monforte San Giorgio ME 18 2777 475173
Laganadi RC 18 413 475586
Roccalumera ME 19 4141 479727
Sant'Alessio in Aspromonte RC 19 343 480070
Roccavaldina ME 20 1133 481203

Municipalities with at least 50000 inhabitants

An earthquake occurred to
7 Km W of Reggio di Calabria (183035 inhabitants)
12 Km S of Messina (238439 inhabitants)
63 Km NE of Acireale (52622 inhabitants)
77 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 1.4 2021-12-05
09:18:38		 38.0853 15.5668 10 2022-03-30
13:04:22		 Bollettino Sismico Italiano INGV 98602731
Reviewed
Rev100 		ML 1.6 2021-12-05
09:18:38		 38.0828 15.5687 9 2021-12-05
09:29:03		 Sala Sismica INGV-Roma 98171011
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-05 09:18:38 ± 0.1
Latitude 38.0853 ± 0.0072
Longitude 15.5668 ± 0.0057
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 98602731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 795
Semi-minor axis of confidence ellipse (meter) 382
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 205
Circular confidence region, given by single value of horizontal uncertainty (meter) 790.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.13310
Epicentral distance of station farthest from the epicenter (degree) 0.57826
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 98602731
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-16 23:21:56

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 10
Type of magnitude ML
Reference to an origin 98171011
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-05 09:29:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.JOPP.HHZ. 2021-12-05T09:18:58.35 0.6 undecidable manual S 26 64.1913 50 0.13 45
IY.OPPI.HHZ. 2021-12-05T09:18:52.51 0.6 undecidable manual S 62 43.623 50 -0.22 46
IV.MPAZ.HHZ. 2021-12-05T09:18:51.88 0.6 undecidable manual S 111 41.1255 50 -0.2 47
IV.JOPP.HHZ. 2021-12-05T09:18:50.46 0.6 undecidable manual P 26 64.1913 50 0.66 39
IV.MPAZ.HHZ. 2021-12-05T09:18:46.10 0.1 undecidable manual P 111 41.1255 50 -0.15 94
IY.OPPI.HHZ. 2021-12-05T09:18:46.68 0.6 undecidable manual P 62 43.623 50 0.05 48
TV.GMB1.HHZ. 2021-12-05T09:18:46.93 0.6 undecidable manual S 66 23.9538 112 -0.29 47
IV.MPNC.HHZ. 2021-12-05T09:18:45.68 0.3 undecidable manual S 290 19.869 116 -0.25 72
IV.MTTG.HHZ. 2021-12-05T09:18:44.40 0.6 undecidable manual S 128 14.7741 123 0.02 51
TV.GMB1.HHZ. 2021-12-05T09:18:43.48 0.1 undecidable manual P 66 23.9538 112 0.03 100
IV.MTTG.HHZ. 2021-12-05T09:18:42.03 0.1 undecidable manual P 128 14.7741 123 0.22 97
IV.MPNC.HHZ. 2021-12-05T09:18:42.75 0.1 undecidable manual P 290 19.869 116 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTTG.HHE. ML:1.1 0.00012680323 0.1408 AML other m 2021-12-05T09:18:44.88
IV.MTTG.HHN. ML:1.1 0.00012821675 0.1024 AML other m 2021-12-05T09:18:45.01
IV.MPNC.HHE. ML:1.9 0.0005592838 1.8592 AML other m 2021-12-05T09:18:46.95
TV.GMB1.HNE. ML:1.5 0.00021150000000000002 0.14 AML other m 2021-12-05T09:18:47.47
TV.GMB1.HHE. ML:1.0 0.0000665 0.14 AML other m 2021-12-05T09:18:47.47
TV.GMB1.HNN. ML:1.6 0.00028000000000000003 0.12 AML other m 2021-12-05T09:18:47.68
TV.GMB1.HHN. ML:1.2 0.00008955000000000001 0.14 AML other m 2021-12-05T09:18:47.67
IV.MPNC.HHN. ML:1.8 0.0004931676000000001 0.1984 AML other m 2021-12-05T09:18:47.72
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