Earthquake with magnitude of ML 1.7 on date 20-12-2020 and time 05:17:59 (Italy) in region Isole Eolie (Messina)

A magnitude ML 1.7 earthquake occured in region: Isole Eolie (Messina), on

  • 20-12-2020 04:17:59 (UTC)
  • 20-12-2020 05:17:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.3640, 15.1050 at 6 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
Lipari ME 18 12753 12753
Milazzo ME 20 31646 44399

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km W of Messina (238439 inhabitants)
55 Km NW of Reggio di Calabria (183035 inhabitants)
84 Km N of Acireale (52622 inhabitants)
96 Km N 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 2020-12-20
04:17:59
38.3638 15.105 6 2021-02-26
14:56:17
Bollettino Sismico Italiano INGV 86771311
Reviewed
Rev100
ML 1.7 2020-12-20
04:17:59
38.364 15.1053 6 2020-12-20
04:28:10
Sala Sismica INGV-Roma 85566991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-20 04:17:59 ± 0.08
Latitude 38.3638 ± 0.0081
Longitude 15.1050 ± 0.0069
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86771311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 993
Semi-minor axis of confidence ellipse (meter) 95
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 207
Circular confidence region, given by single value of horizontal uncertainty (meter) 990.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 22
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.09893
Epicentral distance of station farthest from the epicenter (degree) 0.79950
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 85566991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-20 04:28:10

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 19
Type of magnitude ML
Reference to an origin 86771311
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-02-01 23:09:56
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IACL.HHE. 2020-12-20T04:18:21.40 0.6 undecidable manual S 286 67.7766 50 0.06 46
IV.SOI.EHN. 2020-12-20T04:18:14.95 0.6 undecidable manual P 111 88.7445 50 -0.45 41
IV.JOPP.HHZ. 2020-12-20T04:18:12.64 0.3 undecidable manual P 68 72.9714 50 -0.32 65
MN.CEL.HHZ. 2020-12-20T04:18:12.62 0.3 undecidable manual P 99 69.5748 50 0.17 67
IV.MSRU.HHZ. 2020-12-20T04:18:12.00 0.6 undecidable manual S 107 36.8298 99 -0.56 44
IV.IACL.HHE. 2020-12-20T04:18:12.70 0.3 undecidable manual P 286 67.7766 50 0.54 62
IV.MPNC.HHZ. 2020-12-20T04:18:11.10 0.6 undecidable manual S 138 32.3454 100 0.07 49
IV.EPZF.HHZ. 2020-12-20T04:18:11.38 0.6 undecidable manual P 200 63.6918 50 -0.15 46
IV.MSFR.HHZ. 2020-12-20T04:18:10.52 0.6 undecidable manual P 231 57.7977 50 -0.1 47
IV.IFIL.HHZ. 2020-12-20T04:18:09.81 0.3 undecidable manual P 296 51.1155 50 0.22 69
IV.AIO.HHZ. 2020-12-20T04:18:08.50 0.1 negative manual P 166 44.9217 50 -0.14 95
IV.MUCR.HHZ. 2020-12-20T04:18:07.70 0.3 undecidable manual P 210 40.9257 98 -0.2 71
IV.MSRU.HHZ. 2020-12-20T04:18:06.81 0.3 undecidable manual P 107 36.8298 99 -0.28 70
IV.ILOS.HHZ. 2020-12-20T04:18:06.10 0.6 undecidable manual S 304 16.3725 110 0.45 47
IV.MPNC.HHZ. 2020-12-20T04:18:06.32 0.1 negative manual P 138 32.3454 100 0.11 97
IV.MILZ.HHZ. 2020-12-20T04:18:05.70 0.6 undecidable manual S 133 15.0738 111 0.48 46
IV.IVGP.HHZ. 2020-12-20T04:18:04.00 0.6 undecidable manual S 286 13.0758 114 -0.58 45
IV.IVPL.HHZ. 2020-12-20T04:18:03.50 0.6 undecidable manual S 277 10.9779 118 -0.43 47
IV.MILZ.HHZ. 2020-12-20T04:18:03.33 0.1 negative manual P 133 15.0738 111 0.47 93
IV.ILOS.HHZ. 2020-12-20T04:18:03.24 0.1 negative manual P 304 16.3725 110 0.14 100
IV.IVPL.HHZ. 2020-12-20T04:18:02.27 0.1 negative manual P 277 10.9779 118 0.16 100
IV.IVGP.HHZ. 2020-12-20T04:18:02.23 0.1 negative manual P 286 13.0758 114 -0.26 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MILZ.HHN. ML:1.8 0.0007434461 0.2176 AML other m 2020-12-20T04:18:06.38
IV.MILZ.HHE. ML:2.1 0.0014730210000000001 0.2176 AML other m 2020-12-20T04:18:06.39
IV.IVPL.HHE. ML:1.5 0.0004357073 0.16 AML other m 2020-12-20T04:18:06.60
IV.IVPL.HHN. ML:1.5 0.00051207745 0.2592 AML other m 2020-12-20T04:18:07.48
IV.MPNC.HHN. ML:1.9 0.00036676205 0.16 AML other m 2020-12-20T04:18:12.21
IV.MSRU.HHE. ML:1.6 0.00016033285 0.1984 AML other m 2020-12-20T04:18:12.18
IV.MSRU.HHN. ML:1.6 0.00016994189 0.1408 AML other m 2020-12-20T04:18:12.67
IV.ILOS.HNN. ML:2.3 0.002173226 0.2592 AML other m 2020-12-20T04:18:13.23
IV.ILOS.HHN. ML:2.4 0.0022553385 0.2592 AML other m 2020-12-20T04:18:13.24
IV.ILOS.HNE. ML:2.2 0.0014905295000000002 0.2368 AML other m 2020-12-20T04:18:13.61
IV.ILOS.HHE. ML:2.2 0.0016511049999999997 0.24 AML other m 2020-12-20T04:18:13.62
IV.MPNC.HHE. ML:1.7 0.0002492816 0.24 AML other m 2020-12-20T04:18:14.94
IV.MUCR.HHE. ML:1.6 0.00014671105000000002 0.1792 AML other m 2020-12-20T04:18:15.35
IV.MUCR.HHN. ML:2.0 0.0003374858 0.32 AML other m 2020-12-20T04:18:15.67
IV.AIO.HHE. ML:1.5 0.000090034695 0.2624 AML other m 2020-12-20T04:18:15.95
IV.AIO.HHN. ML:1.8 0.00018543565000000002 0.1792 AML other m 2020-12-20T04:18:16.21
MN.CEL.HHN. ML:1.4 0.000041029415 0.24 AML other m 2020-12-20T04:18:22.57
IV.JOPP.HHE. ML:1.2 0.000023124700000000002 0.24 AML other m 2020-12-20T04:18:22.77
MN.CEL.HHE. ML:1.4 0.000041632445 0.2784 AML other m 2020-12-20T04:18:24.18
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