Earthquake with magnitude of ML 1.7 on date 02-08-2017 and time 21:35:14 (UTC) in region Tirreno Meridionale (MARE)

A magnitude ML 1.7 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 02-08-2017 21:35:14 (UTC)
  • 02-08-2017 23:35:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.6420, 15.5860 at 80 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
50 Km N of Messina (238439 inhabitants)
59 Km N of Reggio di Calabria (183035 inhabitants)
74 Km SW of Lamezia Terme (70714 inhabitants)
92 Km W of Catanzaro (90612 inhabitants)
93 Km SW of Cosenza (67546 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 1.7 2017-08-02
21:35:14
38.6423 15.5865 80 2018-07-06
15:40:35
Bollettino Sismico Italiano INGV 51377191
Reviewed
Rev100
ML 1.7 2017-08-02
21:35:14
38.6403 15.598 81 2017-08-02
21:44:37
Sala Sismica INGV-Roma 48623531
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-08-02 21:35:14 ± 0.24
Latitude 38.6423 ± 0.0126
Longitude 15.5865 ± 0.0196
Depth (km) 80 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 51377191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1478
Semi-minor axis of confidence ellipse (meter) 1160
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 123
Circular confidence region, given by single value of horizontal uncertainty (meter) 1480.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 137
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.23652
Epicentral distance of station farthest from the epicenter (degree) 1.05760
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 51377191
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2018-01-25 11:04:05

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 48623531
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-08-02 21:44:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CELI.HHZ. 2017-08-02T21:35:50.23 0.6 undecidable manual S 43 115.8951 117 0.88 32
IV.CET2.HHZ. 2017-08-02T21:35:46.64 0.6 undecidable manual S 18 103.3188 121 -0.34 41
IV.CAR1.HHZ. 2017-08-02T21:35:43.66 0.6 undecidable manual S 38 86.6466 126 -0.32 42
IV.PLAC.HHZ. 2017-08-02T21:35:42.25 0.6 undecidable manual S 106 76.9674 130 -0.09 45
IV.JOPP.HHZ. 2017-08-02T21:35:35.94 0.3 undecidable manual S 99 26.2515 159 0.04 75
IV.CELI.HHZ. 2017-08-02T21:35:34.75 0.3 undecidable manual P 43 115.8951 117 0.01 63
MN.TIP.HNE. 2017-08-02T21:35:34.98 0.3 undecidable manual P 59 117.3936 117 0.07 62
IV.CET2.HHZ. 2017-08-02T21:35:33.35 0.3 undecidable manual P 18 103.3188 121 -0.02 65
IV.SERS.HNN. 2017-08-02T21:35:33.85 0.3 undecidable manual P 65 104.7174 120 0.33 61
IV.CAR1.HHZ. 2017-08-02T21:35:31.52 0.3 undecidable manual P 38 86.6466 126 -0.11 66
IV.PLAC.HHZ. 2017-08-02T21:35:30.36 0.3 undecidable manual P 106 76.9674 130 -0.33 65
IV.IVPL.HHZ. 2017-08-02T21:35:29.49 0.6 undecidable manual P 241 60.3951 138 0.28 45
IV.MILZ.HHZ. 2017-08-02T21:35:28.40 0.3 undecidable manual P 217 51.4152 143 -0.1 71
IV.JOPP.HHZ. 2017-08-02T21:35:26.93 0.1 undecidable manual P 99 26.2515 159 -0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.JOPP.HHE. ML:1.5 0.0000429 0.22 AML other m 2017-08-02T21:35:36.36
IV.JOPP.HHN. ML:1.4 0.000035749999999999995 0.74 AML other m 2017-08-02T21:35:36.34
IV.CET2.HHN. ML:1.9 0.0000526 0.28 AML other m 2017-08-02T21:35:47.88
IV.CET2.HHE. ML:1.7 0.000033600000000000004 0.56 AML other m 2017-08-02T21:35:48.60
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