ISTITUTO NAZIONALE DI GEOFISICA E VULCANOLOGIA

Earthquake with magnitude of ML 1.6 on date 20-03-2019 and time 07:22:48 (UTC) in region Stretto di Messina (Reggio di Calabria, Messina)

A magnitude ML 1.6 earthquake occured in region: Stretto di Messina (Reggio di Calabria, Messina), on

  • 20-03-2019 07:22:48 (UTC)
  • 20-03-2019 08:22:48 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.03, 15.61 at 12 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Motta San Giovanni RC 9 6208 6208
Reggio di Calabria RC 10 183035 189243
Scaletta Zanclea ME 13 2140 191383
Montebello Ionico RC 14 6214 197597
Itala ME 15 1640 199237
Cardeto RC 15 1641 200878
Alì Terme ME 16 2539 203417
Alì ME 17 768 204185
Nizza di Sicilia ME 18 3667 207852
Roghudi RC 18 1104 208956
Bagaladi RC 19 1039 209995
Messina ME 19 238439 448434
Roccalumera ME 20 4141 452575
Fiumedinisi ME 20 1409 453984
Melito di Porto Salvo RC 20 11355 465339
Calanna RC 20 934 466273

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km SW of Reggio di Calabria (183035 inhabitants)
19 Km S of Messina (238439 inhabitants)
60 Km NE of Acireale (52622 inhabitants)
74 Km NE 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
Rev 100 ML 1.6 2019-03-20
07:22:48
38.03 15.61 12 2019-03-20
07:37:15
Sala Sismica INGV-Roma 66706621
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-03-20 07:22:48 ± 0.13
Latitude 38.03 ± 0.01
Longitude 15.61 ± 0.01
Depth (km) 12 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 66706621

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 857
Semi-minor axis of confidence ellipse (meter) 504
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 16
Circular confidence region, given by single value of horizontal uncertainty (meter) 860
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 149
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.35433
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:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 66706621
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-03-20 07:37:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HAGA.HHZ. 2019-03-20T07:23:04.34 3.0 undecidable manual P -0.17 0
IV.SOI.EHZ. 2019-03-20T07:23:01.37 0.6 undecidable manual S 83 0.3543 91 0.01 49
IV.AIO.HHZ. 2019-03-20T07:22:59.78 0.6 undecidable manual S 259 0.3013 91 -0.01 49
IV.MSRU.HHZ. 2019-03-20T07:22:58.05 0.6 undecidable manual S 342 0.2464 92 -0.13 50
IV.MPNC.HHZ. 2019-03-20T07:22:57.18 0.6 undecidable manual S 300 0.232 92 -0.57 45
IV.SICLA.EHZ. 2019-03-20T07:22:57.97 0.6 undecidable manual S 20 0.241 92 -0.05 50
IV.AIO.HHZ. 2019-03-20T07:22:55.14 0.1 undecidable manual P 259 0.3013 91 0.16 97
IV.SOI.EHZ. 2019-03-20T07:22:55.48 0.1 undecidable manual P 83 0.3543 91 -0.41 89
IV.SICLA.EHZ. 2019-03-20T07:22:54.30 0.3 positive manual P 20 0.241 92 0.34 70
IV.MSRU.HHZ. 2019-03-20T07:22:54.27 0.1 positive manual P 342 0.2464 92 0.22 95
IV.MPNC.HHZ. 2019-03-20T07:22:53.77 0.1 undecidable manual P 300 0.232 92 -0.03 100
IV.MTTG.HHZ. 2019-03-20T07:22:53.23 0.3 undecidable manual S 110 0.0773 130 -0.11 75
IV.MTTG.HHZ. 2019-03-20T07:22:51.49 0.1 undecidable manual P 110 0.0773 130 0.23 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MTTG.HHE. ML:1.6 0.000556 1.1 AML other m 2019-03-20T07:22:53.40
IV.MTTG.HHN. ML:1.8 0.000783 0.64 AML other m 2019-03-20T07:22:53.54
IV.MPNC.HHE. ML:1.6 0.0002515 1.58 AML other m 2019-03-20T07:22:58.96
IV.MSRU.HHN. ML:1.6 0.0001985 0.36 AML other m 2019-03-20T07:22:58.79
IV.MSRU.HHE. ML:1.8 0.0003405 1.04 AML other m 2019-03-20T07:22:58.39
IV.MPNC.HHN. ML:1.5 0.000189 1.34 AML other m 2019-03-20T07:23:00.73
IV.AIO.HHE. ML:1.2 6.705E-5 0.64 AML other m 2019-03-20T07:23:00.44
IV.AIO.HHN. ML:1.2 5.87E-5 0.84 AML other m 2019-03-20T07:23:04.33
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