Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 28-12-2019 and time 15:57:31 (UTC) in region Costa Siciliana nord orientale (Messina)

A magnitude ML 1.3 earthquake occured in region: Costa Siciliana nord orientale (Messina), on

  • 28-12-2019 15:57:31 (UTC)
  • 28-12-2019 16:57:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.26, 15.02 at 8 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Patti ME 14 13431 13431
Gioiosa Marea ME 15 7074 20505
Montagnareale ME 16 1615 22120
Oliveri ME 16 2181 24301
Falcone ME 17 2808 27109
Piraino ME 17 3962 31071
Terme Vigliatore ME 19 7395 38466
Librizzi ME 19 1660 40126
Furnari ME 20 3784 43910

Municipalities with at least 50000 inhabitants

An earthquake occurred to
48 Km W of Messina (238439 inhabitants)
57 Km W of Reggio di Calabria (183035 inhabitants)
73 Km N of Acireale (52622 inhabitants)
85 Km N of Catania (314555 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.3 2019-12-28
15:57:31		 38.26 15.02 8 2019-12-28
16:04:47		 Sala Sismica INGV-Roma 75049951
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-28 15:57:31 ± 0.1
Latitude 38.26 ± 0.00
Longitude 15.02 ± 0.01
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75049951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 609
Semi-minor axis of confidence ellipse (meter) 514
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 60
Circular confidence region, given by single value of horizontal uncertainty (meter) 610
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.38491
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 75049951
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-28 16:04:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.FERC.HNZ. 2019-12-28T15:57:49.07 3.0 undecidable manual P 0
IV.AIO.HHE. 2019-12-28T15:57:44.56 0.3 undecidable manual S 150 0.3363 50 -0.38 68
IV.MPNC.HHZ. 2019-12-28T15:57:43.14 0.3 undecidable manual S 114 0.2869 104 -0.03 74
IV.MUCR.HHZ. 2019-12-28T15:57:41.60 0.1 undecidable manual S 207 0.2464 106 -0.04 99
IV.MSRU.HHE. 2019-12-28T15:57:40.10 0.1 undecidable manual P 90 0.3849 50 -0.11 95
IV.AIO.HHE. 2019-12-28T15:57:39.89 0.1 undecidable manual P 150 0.3363 50 0.51 88
IV.MPNC.HHZ. 2019-12-28T15:57:38.38 0.1 undecidable manual P 114 0.2869 104 0.02 99
IV.IVGP.HHZ. 2019-12-28T15:57:37.74 0.1 undecidable manual S 342 0.1421 116 -0.14 99
IV.MUCR.HHZ. 2019-12-28T15:57:37.44 0.1 undecidable manual P 207 0.2464 106 -0.04 99
IV.IVGP.HHZ. 2019-12-28T15:57:35.20 0.1 undecidable manual P 342 0.1421 116 -0.11 100
IV.IVPL.HHZ. 2019-12-28T15:57:35.08 0.1 undecidable manual P 346 0.1178 121 0.24 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IVPL.HHN. ML:1.4 0.00027380265 1.28 AML other m 2019-12-28T15:57:38.56
IV.MUCR.HHN. ML:1.1 6.5397855E-5 0.4224 AML other m 2019-12-28T15:57:42.21
IV.MPNC.HHE. ML:1.2 8.1622445E-5 2.6368 AML other m 2019-12-28T15:57:43.59
IV.MPNC.HHN. ML:1.3 9.554855E-5 3.8272 AML other m 2019-12-28T15:57:44.42
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download