Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.5 on date 28-10-2017 and time 12:58:08 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 2.5 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 28-10-2017 10:58:08 (UTC)
  • 28-10-2017 12:58:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.7260, 15.6130 at 161 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
59 Km N of Messina (238439 inhabitants)
67 Km W of Lamezia Terme (70714 inhabitants)
69 Km N of Reggio di Calabria (183035 inhabitants)
84 Km SW of Cosenza (67546 inhabitants)
88 Km W of Catanzaro (90612 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 2.5 2017-10-28
10:58:08		 38.7257 15.6128 161 2018-09-04
09:08:02		 Bollettino Sismico Italiano INGV 59029571
Reviewed
Rev100 		Md 2.1 2017-10-28
10:58:08		 38.7687 15.5957 161 2017-10-28
11:26:55		 Sala Sismica INGV-Roma 51396601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-10-28 10:58:08 ± 0.28
Latitude 38.7257 ± 0.0135
Longitude 15.6128 ± 0.0254
Depth (km) 161 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 59029571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1784
Semi-minor axis of confidence ellipse (meter) 1686
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 250
Circular confidence region, given by single value of horizontal uncertainty (meter) 1780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
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) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.24372
Epicentral distance of station farthest from the epicenter (degree) 1.46859
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 15
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 59029571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-07-24 13:04:17

Md:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 7
Type of magnitude Md
Reference to an origin 51396601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-10-28 11:26:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.TIP.HHZ. 2017-10-28T10:58:53.57 0.6 undecidable manual S 63 110.9001 143 0.01 42
IV.PLAC.HHZ. 2017-10-28T10:58:49.79 0.6 undecidable manual S 113 77.8665 153 0.01 46
IV.MSRU.HHZ. 2017-10-28T10:58:47.63 0.6 undecidable manual S 190 52.0035 161 0.05 48
IV.JOPP.HHZ. 2017-10-28T10:58:46.09 0.6 undecidable manual S 119 27.0507 170 -0.13 50
IV.MGR.HHZ. 2017-10-28T10:58:38.32 0.1 undecidable manual P 358 156.7209 133 0.14 75
IV.BULG.HHN. 2017-10-28T10:58:38.23 0.3 undecidable manual P 352 151.4373 134 0.52 53
IV.SIRI.HHZ. 2017-10-28T10:58:38.46 0.1 undecidable manual P 8 163.0146 132 -0.3 71
MN.CUC.HHZ. 2017-10-28T10:58:36.50 0.1 undecidable manual P 7 141.747 136 -0.36 76
IV.TDS.HHZ. 2017-10-28T10:58:35.31 0.3 undecidable manual P 31 120.99 141 0.17 61
MN.TIP.HHZ. 2017-10-28T10:58:34.24 0.1 undecidable manual P 63 110.9001 143 -0.13 85
IV.CELI.HHE. 2017-10-28T10:58:34.70 0.3 undecidable manual P 45 107.7144 144 0.56 57
IV.SERS.HHZ. 2017-10-28T10:58:33.47 0.1 undecidable manual P 69 99.0231 146 -0.06 88
IV.CET2.HHZ. 2017-10-28T10:58:32.90 0.1 undecidable manual P 18 93.8394 148 -0.27 86
IV.PLAC.HHZ. 2017-10-28T10:58:32.16 0.1 negative manual P 113 77.8665 153 -0.03 91
IV.GRI.EHN. 2017-10-28T10:58:32.06 0.1 undecidable manual P 81 70.5738 155 0.27 89
IV.SOI.EHZ. 2017-10-28T10:58:32.37 0.1 undecidable manual P 152 81.9513 151 -0.05 89
IV.MSRU.HHZ. 2017-10-28T10:58:31.06 0.1 undecidable manual P 190 52.0035 161 0.14 95
IV.CAR1.HHZ. 2017-10-28T10:58:31.89 0.3 undecidable manual P 41 78.0663 153 -0.31 66
IV.JOPP.HHZ. 2017-10-28T10:58:30.08 0.1 negative manual P 119 27.0507 170 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.JOPP.HHN. ML:2.3 0.00008135710000000001 0.1984 AML other m 2017-10-28T10:58:47.48
IV.JOPP.HHE. ML:2.2 0.00007348462999999999 0.2752 AML other m 2017-10-28T10:58:48.30
IV.MSRU.HHN. ML:2.7 0.00022280080000000002 0.3648 AML other m 2017-10-28T10:58:48.27
IV.MSRU.HHE. ML:2.7 0.00020318805 0.576 AML other m 2017-10-28T10:58:49.48
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download