Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 11-01-2018 and time 12:28:55 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 2.1 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 11-01-2018 11:28:55 (UTC)
  • 11-01-2018 12:28:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.4830, 15.5280 at 134 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.

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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
32 Km N of Messina (238439 inhabitants)
43 Km N of Reggio di Calabria (183035 inhabitants)
88 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 		Md 2.1
ML 2.1 		2018-01-11
11:28:55		 38.4828 15.5278 135 2019-04-24
14:49:23		 Bollettino Sismico Italiano INGV 55179731
Reviewed
Rev100 		Md 2.1 2018-01-11
11:28:54		 38.4667 15.4218 133 2018-01-11
11:36:44		 Sala Sismica INGV-Roma 53138641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-01-11 11:28:55 ± 0.32
Latitude 38.4828 ± 0.0180
Longitude 15.5278 ± 0.0276
Depth (km) 135 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 55179731

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2204
Semi-minor axis of confidence ellipse (meter) 1663
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 129
Circular confidence region, given by single value of horizontal uncertainty (meter) 2200.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 147
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.18441
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 55179731
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-04-06 10:02:57

Md:2.1

Field Value
Value 2.1
Uncertainty 0.1
Num. used stations 4
Type of magnitude Md
Reference to an origin 55179731
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-04-06 10:02:57

Md:2.1

Field Value
Value 2.1
Uncertainty 0.1
Num. used stations 4
Type of magnitude Md
Reference to an origin 53138641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-01-11 11:36:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OX.CGRP.HHZ. 2018-01-11T11:30:42.50 3.0 undecidable manual Pn 0.79 0
IV.PE3.EHZ. 2018-01-11T11:30:38.33 3.0 undecidable manual Pg 26.540001 0
IV.NARO.HHZ. 2018-01-11T11:30:20.24 3.0 positive manual Pn 9.8 0
IV.VCEL.EHZ. 2018-01-11T11:30:07.67 3.0 negative manual Pg 16.1 0
IV.VIVA.HHZ. 2018-01-11T11:29:51.91 3.0 positive manual Pn 4.63 0
IV.BSSO.HHZ. 2018-01-11T11:29:47.42 3.0 positive manual Pn 7.73 0
IV.CET2.HHZ. 2018-01-11T11:29:38.22 0.3 undecidable manual S 17 121.6893 135 0.38 61
IV.PLAC.HHE. 2018-01-11T11:29:32.49 0.1 undecidable manual S 92 79.1652 147 0.46 87
IV.VBKN.HHZ. 2018-01-11T11:29:31.04 3.0 undecidable manual Pn -0.15 0
IV.NOV.HHZ. 2018-01-11T11:29:30.68 0.3 undecidable manual S 214 60.8946 154 0.59 65
IV.SOI.EHZ. 2018-01-11T11:29:30.61 0.6 undecidable manual S 135 64.5909 152 0.16 48
IV.MSRU.HHZ. 2018-01-11T11:29:27.03 0.3 undecidable manual S 184 24.3534 169 -0.52 71
IV.JOPP.HHZ. 2018-01-11T11:29:27.76 0.3 undecidable manual S 66 33.9438 165 -0.26 75
MN.TIP.HHZ. 2018-01-11T11:29:21.02 0.1 undecidable manual P 54 131.4684 132 0.29 81
IV.CET2.HHZ. 2018-01-11T11:29:19.99 0.1 undecidable manual P 17 121.6893 135 0.14 86
IV.CAR1.HHZ. 2018-01-11T11:29:18.06 0.1 undecidable manual P 34 103.9182 139 -0.28 87
IV.PLAC.HHE. 2018-01-11T11:29:16.57 0.1 undecidable manual P 92 79.1652 147 0.07 95
IV.GRI.EHN. 2018-01-11T11:29:16.79 0.1 undecidable manual P 64 85.9473 145 -0.18 92
IV.MUCR.HHE. 2018-01-11T11:29:16.73 0.3 undecidable manual P 230 74.9694 149 0.51 66
IV.SOI.EHZ. 2018-01-11T11:29:15.39 0.1 undecidable manual P 135 64.5909 152 -0.19 95
IV.MTTG.HHE. 2018-01-11T11:29:15.14 0.1 undecidable manual P 164 55.3002 156 0.06 100
IV.NOV.HHZ. 2018-01-11T11:29:15.68 0.3 undecidable manual P 214 60.8946 154 0.3 70
IV.MPNC.HHN. 2018-01-11T11:29:14.13 0.3 undecidable manual P 202 40.3263 162 -0.28 73
IV.MSRU.HHZ. 2018-01-11T11:29:13.29 0.1 undecidable manual P 184 24.3534 169 -0.62 91
IV.JOPP.HHZ. 2018-01-11T11:29:13.97 0.1 undecidable manual P 66 33.9438 165 -0.22 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MSRU.HHE. ML:2.3 0.000109894095 1.6384 AML other m 2018-01-11T11:29:24.20
IV.MSRU.HHN. ML:2.1 0.00007923311 0.8384 AML other m 2018-01-11T11:29:31.33
IV.JOPP.HHN. ML:1.9 0.00004923270000000001 2.2208 AML other m 2018-01-11T11:29:51.05
IV.JOPP.HHE. ML:1.9 0.000046021739999999996 1.4976 AML other m 2018-01-11T11:29:48.05
IV.SOI.EHN. ML:1.8 0.00003719308 1.7024 AML other m 2018-01-11T11:29:56.22
IV.SOI.EHE. ML:2.0 0.000049724405 1.7152 AML other m 2018-01-11T11:29:49.41
IV.CAR1.HHN. ML:2.0 0.000045885339999999995 0.7424 AML other m 2018-01-11T11:29:20.40
IV.CAR1.HNN. ML:2.7 0.00019820685 1.28 AML other m 2018-01-11T11:29:48.04
IV.CAR1.HHE. ML:2.1 0.000047617225 1.28 AML other m 2018-01-11T11:29:49.57
IV.CAR1.HNE. ML:2.6 0.000153096 0.7296 AML other m 2018-01-11T11:29:21.96
IV.CET2.HHN. ML:2.4 0.00008773439 0.9408 AML other m 2018-01-11T11:29:52.66
IV.CET2.HHE. ML:2.2 0.00005671653 0.96 AML other m 2018-01-11T11:29:53.48
MN.TIP.HNE. ML:2.2 0.000058618809999999996 0.8192 AML other m 2018-01-11T11:29:47.29
MN.TIP.HHE. ML:1.9 0.000023683915 1.9584 AML other m 2018-01-11T11:29:51.54
MN.TIP.HNN. ML:2.4 0.000091789725 0.8576 AML other m 2018-01-11T11:29:28.93
MN.TIP.HHN. ML:1.9 0.000024695695000000004 2.9376 AML other m 2018-01-11T11:30:01.20
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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