Earthquake with magnitude of ML 1.8 on date 01-01-2021 and time 21:06:16 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 1.8 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 01-01-2021 20:06:16 (UTC)
  • 01-01-2021 21:06:16 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.891, 15.583 at 89 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
64 Km W of Lamezia Terme (70714 inhabitants)
73 Km SW of Cosenza (67546 inhabitants)
77 Km N of Messina (238439 inhabitants)
87 Km N of Reggio di Calabria (183035 inhabitants)
88 Km W of Catanzaro (90612 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 2021-01-01
20:06:16
38.891 15.5832 89 2021-07-12
16:54:56
Bollettino Sismico Italiano INGV 86427371
Reviewed
Rev100
ML 1.7 2021-01-01
20:06:17
38.8717 15.527 77 2021-01-01
20:16:52
Sala Sismica INGV-Roma 85947271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-01 20:06:16 ± 0.17
Latitude 38.8910 ± 0.0063
Longitude 15.5832 ± 0.0116
Depth (km) 89 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86427371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1014
Semi-minor axis of confidence ellipse (meter) 388
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) 1010
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 170
Number of associated phases, regardless of their use for origin computation 24
Number of defining phases 24
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.19
Epicentral distance of station closest to the epicenter (degree) 0.36872
Epicentral distance of station farthest from the epicenter (degree) 0.89662
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 86427371
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-21 10:39:05

ML:1.7

Field Value
Value 1.7
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 85947271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-01 20:16:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CELI.HHZ. 2021-01-01T20:06:49.64 0.3 undecidable manual S 54 0.8813 126 0.58 59
IV.PLAC.HHZ. 2021-01-01T20:06:47.25 0.6 undecidable manual S 123 0.8004 130 -0.28 44
IV.CET2.HHZ. 2021-01-01T20:06:45.56 0.6 undecidable manual S 24 0.6997 134 -0.17 45
MN.CEL.HHZ. 2021-01-01T20:06:45.42 0.6 undecidable manual S 159 0.6754 135 0.1 46
IV.MILZ.HHN. 2021-01-01T20:06:45.69 0.6 undecidable manual S 204 0.6772 135 0.33 44
IV.SPS2.HHZ. 2021-01-01T20:06:45.77 0.3 undecidable manual S 55 0.7096 133 -0.14 69
IV.SICLA.EHN. 2021-01-01T20:06:44.52 0.6 undecidable manual S 171 0.643 136 -0.25 45
IV.FERC.HNZ. 2021-01-01T20:06:44.22 0.6 undecidable manual S 136 0.6106 138 -0.03 48
IV.MSRU.HHE. 2021-01-01T20:06:44.72 0.6 undecidable manual S 185 0.6295 137 0.16 46
XK.GIZZ.HHZ. 2021-01-01T20:06:42.27 0.3 undecidable manual S 79 0.4937 144 -0.23 71
IV.JOPP.HHE. 2021-01-01T20:06:41.01 0.6 undecidable manual S 140 0.3687 152 0.07 49
IV.SOI.EHN. 2021-01-01T20:06:36.38 0.6 undecidable manual P 156 0.8966 126 0.76 37
IV.CELI.HHZ. 2021-01-01T20:06:35.67 0.3 undecidable manual P 54 0.8813 126 0.23 65
IV.GRIS.HNE. 2021-01-01T20:06:35.81 0.6 undecidable manual P 14 0.8741 127 0.44 42
IV.PLAC.HHZ. 2021-01-01T20:06:34.51 0.1 undecidable manual P 123 0.8004 130 -0.05 91
IV.SPS2.HHZ. 2021-01-01T20:06:33.48 0.1 undecidable manual P 55 0.7096 133 -0.15 91
MN.CEL.HHZ. 2021-01-01T20:06:33.25 0.3 undecidable manual P 159 0.6754 135 -0.04 70
IV.MILZ.HHN. 2021-01-01T20:06:33.36 0.1 positive manual P 204 0.6772 135 0.05 94
IV.CET2.HHZ. 2021-01-01T20:06:33.51 0.1 negative manual P 24 0.6997 134 -0.01 93
IV.MSRU.HHE. 2021-01-01T20:06:32.71 0.1 positive manual P 185 0.6295 137 -0.14 92
IV.FERC.HNZ. 2021-01-01T20:06:32.67 0.3 undecidable manual P 136 0.6106 138 0 72
IV.SICLA.EHN. 2021-01-01T20:06:32.80 0.1 undecidable manual P 171 0.643 136 -0.17 92
XK.GIZZ.HHZ. 2021-01-01T20:06:31.46 0.3 undecidable manual P 79 0.4937 144 -0.2 71
IV.JOPP.HHE. 2021-01-01T20:06:30.73 0.1 positive manual P 140 0.3687 152 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CEL.HNN. ML:2.1 8.9716085E-5 0.768 AML other m 2021-01-01T20:06:44.62
IV.CET2.HHE. ML:2 7.1513785E-5 1.4976 AML other m 2021-01-01T20:06:45.97
IV.SPS2.HHN. ML:1.8 4.36E-5 0.28 AML other m 2021-01-01T20:06:46.84
IV.CET2.HHN. ML:2.1 9.135941E-5 0.1024 AML other m 2021-01-01T20:06:47.07
MN.CEL.HHE. ML:1.5 2.3062842E-5 0.4608 AML other m 2021-01-01T20:06:47.90
IV.SPS2.HHE. ML:1.5 2.472076E-5 0.2688 AML other m 2021-01-01T20:06:47.80
IV.PLAC.HHE. ML:1.7 3.293063E-5 1.1008 AML other m 2021-01-01T20:06:53.15
IV.PLAC.HHN. ML:1.7 3.543826E-5 0.4864 AML other m 2021-01-01T20:06:53.66
IV.POFI.HNN. ML:0 0.0002286631 1.408 AML other m 2021-01-01T20:07:44.51
IV.POFI.HNE. ML:0 0.00014121149 1.1392 AML other m 2021-01-01T20:07:45.62
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download