Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 19-10-2019 and time 01:02:52 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 1.9 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 18-10-2019 23:02:52 (UTC)
  • 19-10-2019 01:02:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.49, 15.47 at 133 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

No Italian municipalities within 20 km distance.

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km N of Messina (238439 inhabitants)
45 Km NW of Reggio di Calabria (183035 inhabitants)
91 Km SW of Lamezia Terme (70714 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 1.9 2019-10-18
23:02:52		 38.49 15.47 133 2019-10-18
23:10:45		 Sala Sismica INGV-Roma 73332221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-18 23:02:52 ± 0.29
Latitude 38.49 ± 0.02
Longitude 15.47 ± 0.03
Depth (km) 133 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73332221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2257
Semi-minor axis of confidence ellipse (meter) 1375
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 132
Circular confidence region, given by single value of horizontal uncertainty (meter) 2260
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 119
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.3
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 1.34718
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 73332221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-18 23:10:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
CR.STON.BHZ. 2019-10-18T23:03:58.14 3.0 undecidable manual Pn 0.48 0
OT.OT14.EHZ. 2019-10-18T23:03:47.18 3.0 undecidable manual Pn 5.08 0
IV.CET2.HHZ. 2019-10-18T23:03:35.16 0.6 undecidable manual S 20 1.1017 134 -0.06 44
IV.SPS2.HHE. 2019-10-18T23:03:34.47 0.6 undecidable manual S 40 1.045 136 0.21 42
IV.AMUR.HHZ. 2019-10-18T23:03:33.20 3.0 positive manual Pn 1.27 0
IV.CAR1.HHZ. 2019-10-18T23:03:32.46 0.6 undecidable manual S 37 0.9542 138 -0.31 43
IV.PLAC.HHZ. 2019-10-18T23:03:29.63 0.6 undecidable manual S 93 0.7572 145 -0.22 45
IV.MTTG.HHZ. 2019-10-18T23:03:27.71 0.6 undecidable manual S 160 0.5198 155 0.71 42
IV.GMB.BHE. 2019-10-18T23:03:27.13 0.6 undecidable manual S 139 0.4272 159 1 38
IV.MPNC.HHZ. 2019-10-18T23:03:25.34 0.6 undecidable manual S 195 0.357 162 -0.22 49
MN.CEL.HHZ. 2019-10-18T23:03:25.72 0.6 undecidable manual S 125 0.4029 160 -0.2 49
IV.MSRU.HHZ. 2019-10-18T23:03:24.38 0.6 undecidable manual S 173 0.2293 168 -0.4 48
IV.TDS.HHE. 2019-10-18T23:03:19.75 0.3 undecidable manual P 30 1.3472 128 -0.09 61
IV.GRIS.EHE. 2019-10-18T23:03:19.23 0.1 undecidable manual P 13 1.2824 129 0.08 82
IV.CELI.HHZ. 2019-10-18T23:03:18.79 0.1 undecidable manual P 41 1.2159 131 0.34 79
MN.TIP.HHE. 2019-10-18T23:03:18.41 0.1 undecidable manual P 55 1.2141 131 -0.02 85
IV.CET2.HHZ. 2019-10-18T23:03:17.42 0.1 undecidable manual P 20 1.1017 134 0.13 85
IV.SPS2.HHE. 2019-10-18T23:03:16.61 0.1 undecidable manual P 40 1.045 136 -0.12 87
IV.GRI.EHE. 2019-10-18T23:03:15.08 0.1 undecidable manual P 66 0.8103 143 0.46 85
IV.CAR1.HHZ. 2019-10-18T23:03:15.54 0.1 undecidable manual P 37 0.9542 138 -0.34 85
IV.PLAC.HHZ. 2019-10-18T23:03:14.00 0.1 undecidable manual P 93 0.7572 145 -0.19 91
IV.NOV.HHE. 2019-10-18T23:03:13.26 0.3 undecidable manual P 210 0.5333 154 0.63 64
IV.AIO.HHE. 2019-10-18T23:03:13.21 0.3 undecidable manual P 200 0.5531 153 0.47 68
IV.MTTG.HHZ. 2019-10-18T23:03:12.52 0.1 undecidable manual P 160 0.5198 155 -0.02 99
IV.GMB.BHE. 2019-10-18T23:03:12.13 0.3 undecidable manual P 139 0.4272 159 0.09 75
IV.IVPL.HHZ. 2019-10-18T23:03:12.02 0.1 undecidable manual P 254 0.402 160 0.1 100
IV.MPNC.HHZ. 2019-10-18T23:03:11.63 0.3 undecidable manual P 195 0.357 162 -0.09 76
MN.CEL.HHZ. 2019-10-18T23:03:11.60 0.1 undecidable manual P 125 0.4029 160 -0.32 95
IV.MSRU.HHZ. 2019-10-18T23:03:10.77 0.1 undecidable manual P 173 0.2293 168 -0.49 95
IV.SICLA.EHE. 2019-10-18T23:03:10.91 0.3 undecidable manual P 141 0.3022 165 -0.59 67
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSRU.HHE. ML:1.9 4.65E-5 0.8 AML other m 2019-10-18T23:03:24.66
IV.MSRU.HHN. ML:1.8 3.69E-5 1.52 AML other m 2019-10-18T23:03:25.22
IV.PLAC.HHN. ML:1.7 2.48E-5 0.76 AML other m 2019-10-18T23:03:29.97
IV.PLAC.HHE. ML:1.7 2.3E-5 0.32 AML other m 2019-10-18T23:03:31.11
IV.CAR1.HHE. ML:1.9 3.275E-5 0.88 AML other m 2019-10-18T23:03:33.52
IV.CAR1.HHN. ML:1.8 2.395E-5 0.9 AML other m 2019-10-18T23:03:33.97
IV.CET2.HHE. ML:2 3.995E-5 1.5 AML other m 2019-10-18T23:03:35.79
IV.CET2.HHN. ML:2.5 0.0001028 0.42 AML other m 2019-10-18T23:03:36.53
IV.AMUR.HHE. ML:2 1.1165E-5 1.06 AML other m 2019-10-18T23:04:06.15
IV.AMUR.HHN. ML:2 9.79E-6 0.5 AML other m 2019-10-18T23:04:07.90
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