Earthquake with magnitude of ML 1.9 on date 20-09-2018 and time 02:56:43 (Italy) in region Tirreno Meridionale (MARE)

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

  • 20-09-2018 00:56:43 (UTC)
  • 20-09-2018 02:56:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.5, 15.49 at 130 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
34 Km N of Messina (238439 inhabitants)
45 Km N of Reggio di Calabria (183035 inhabitants)
90 Km SW of Lamezia Terme (70714 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 1.9 2018-09-20
00:56:43
38.5 15.49 130 2019-06-04
09:15:55
Bollettino Sismico Italiano INGV 61321661
Reviewed
Rev100
ML 1.9 2018-09-20
00:56:42
38.51 15.39 131 2018-09-20
01:02:21
Sala Sismica INGV-Roma 61126341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-20 00:56:43 ± 0.29
Latitude 38.50 ± 0.02
Longitude 15.49 ± 0.03
Depth (km) 130 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 61321661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3289
Semi-minor axis of confidence ellipse (meter) 1158
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 122
Circular confidence region, given by single value of horizontal uncertainty (meter) 3290
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 152
Number of associated phases, regardless of their use for origin computation 19
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0.23562
Epicentral distance of station farthest from the epicenter (degree) 1.09088
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:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 61321661
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-09-26 08:04:36

ML:1.9

Field Value
Value 1.9
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 61126341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-20 01:02:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SERS.HHZ. 2018-09-20T00:57:25.19 0.3 undecidable manual S 60 1.0774 134 0.58 57
IV.CAR1.HHZ. 2018-09-20T00:57:22.19 0.6 undecidable manual S 36 0.9407 138 -0.14 44
IV.MTTG.HHZ. 2018-09-20T00:57:16.73 0.3 undecidable manual S 161 0.5225 154 0.02 73
IV.JOPP.HHZ. 2018-09-20T00:57:15.31 0.6 undecidable manual S 71 0.3283 163 0.31 48
MN.CEL.HHZ. 2018-09-20T00:57:15.73 0.6 undecidable manual S 127 0.3966 160 0.2 49
IV.MSRU.HHZ. 2018-09-20T00:57:14.03 0.3 undecidable manual S 176 0.2356 168 -0.41 71
IV.SERS.HHZ. 2018-09-20T00:57:07.13 0.1 undecidable manual P 60 1.0774 134 0.09 85
IV.CET2.HHZ. 2018-09-20T00:57:07.24 0.1 undecidable manual P 19 1.0909 134 0.06 85
IV.SPS2.HHZ. 2018-09-20T00:57:06.41 0.1 undecidable manual P 40 1.0315 135 -0.18 86
IV.CAR1.HHZ. 2018-09-20T00:57:05.45 0.1 undecidable manual P 36 0.9407 138 -0.28 86
IV.MUCR.HHE. 2018-09-20T00:57:04.03 0.6 undecidable manual P 227 0.6637 148 0.6 41
IV.SOI.EHN. 2018-09-20T00:57:02.56 0.6 undecidable manual P 134 0.6142 150 -0.52 43
IV.MTTG.HHZ. 2018-09-20T00:57:02.67 0.6 undecidable manual P 161 0.5225 154 0.19 47
IV.NOV.HHZ. 2018-09-20T00:57:02.96 0.3 undecidable manual P 211 0.5459 153 0.33 68
IV.MPNC.HHN. 2018-09-20T00:57:02.32 0.3 undecidable manual P 197 0.3678 161 0.65 65
MN.CEL.HHZ. 2018-09-20T00:57:01.81 0.3 undecidable manual P 127 0.3966 160 0.01 76
IV.JOPP.HHZ. 2018-09-20T00:57:01.38 0.1 undecidable manual P 71 0.3283 163 -0.12 100
IV.MILZ.HHN. 2018-09-20T00:57:00.98 0.3 undecidable manual P 222 0.304 164 -0.43 71
IV.MSRU.HHZ. 2018-09-20T00:57:00.82 0.1 undecidable manual P 176 0.2356 168 -0.36 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.CEL.HNN. ML:2.2 9.435E-5 1.58 AML other m 2018-09-20T00:57:09.80
IV.MSRU.HHE. ML:2 6.08E-5 0.4 AML other m 2018-09-20T00:57:14.86
IV.MSRU.HHN. ML:1.8 4.16E-5 0.38 AML other m 2018-09-20T00:57:14.78
MN.CEL.HHN. ML:1.7 3.215E-5 1.76 AML other m 2018-09-20T00:57:15.91
IV.JOPP.HHE. ML:1.8 3.625E-5 0.6 AML other m 2018-09-20T00:57:15.66
IV.JOPP.HHN. ML:1.9 5.065E-5 0.16 AML other m 2018-09-20T00:57:16.19
MN.CEL.HHE. ML:1.7 3.105E-5 1.3 AML other m 2018-09-20T00:57:17.34
MN.CEL.HNE. ML:2.1 7.45E-5 0.72 AML other m 2018-09-20T00:57:22.78
IV.MNO.SHN. ML:0 6.4E-5 0.88 AML other m 2018-09-20T00:57:23.44
IV.CET2.HHE. ML:1.8 2.57E-5 1.06 AML other m 2018-09-20T00:57:26.34
IV.CET2.HHN. ML:2.2 5.69E-5 0.48 AML other m 2018-09-20T00:57:26.75
IV.MNO.SHE. ML:0 4.905E-5 0.56 AML other m 2018-09-20T00:57:41.56
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