Earthquake with magnitude of ML 1.6 on date 21-07-2015 and time 19:43:14 (Italy) in region Mar Ionio Meridionale (MARE)

A magnitude ML 1.6 earthquake occured in region: Mar Ionio Meridionale (MARE), on

  • 21-07-2015 17:43:14 (UTC)
  • 21-07-2015 19:43:14 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.49, 16.05 at 34 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
78 Km SE of Reggio di Calabria (183035 inhabitants)
79 Km E of Acireale (52622 inhabitants)
82 Km NE of Siracusa (122291 inhabitants)
84 Km E of Catania (314555 inhabitants)
89 Km SE of Messina (238439 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 1.6 2015-07-21
17:43:14
37.49 16.04 34 2016-01-08
08:53:02
Bollettino Sismico Italiano INGV 22610231
Reviewed
Rev100
ML 1.6 2015-07-21
17:43:14
37.49 16.04 32 2015-07-21
17:56:27
Sala Sismica INGV-Roma 20423601
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-07-21 17:43:14 ± 0.2
Latitude 37.49 ± 0.01
Longitude 16.04 ± 0.02
Depth (km) 34 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 22610231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1588
Semi-minor axis of confidence ellipse (meter) 345
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 110
Circular confidence region, given by single value of horizontal uncertainty (meter) 1590
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 233
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
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
Epicentral distance of station farthest from the epicenter (degree) 0.94159
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 12
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 2
Type of magnitude ML
Reference to an origin 20423601
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-07-21 17:56:27

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 2
Type of magnitude ML
Reference to an origin 22610231
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-12-08 23:22:43
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HLNI.HHZ. 2015-07-21T17:43:44.87 0.6 undecidable manual S 262 0.9416 54 -0.42 44
IV.HAVL.HHZ. 2015-07-21T17:43:44.04 0.3 undecidable manual S 234 0.9056 54 -0.39 67
IV.MCSR.HHE. 2015-07-21T17:43:43.48 0.6 undecidable manual S 312 0.8624 54 0.07 48
IV.AIO.HHE. 2015-07-21T17:43:42.16 0.6 undecidable manual S 307 0.8022 54 0.2 47
IV.SSY.HHZ. 2015-07-21T17:43:42.46 0.6 undecidable manual S 247 0.84 54 -0.4 45
MN.CEL.HNZ. 2015-07-21T17:43:41.42 0.6 undecidable manual S 351 0.7797 107 0.11 49
IV.HAGA.HHZ. 2015-07-21T17:43:39.84 0.3 undecidable manual S 254 0.7356 108 -0.23 72
IV.AGST.EHE. 2015-07-21T17:43:39.09 0.6 undecidable manual S 251 0.6898 109 0.3 48
IV.MSRU.HHZ. 2015-07-21T17:43:35.99 3.0 undecidable manual Sn -0.52 0
IV.HAVL.HHZ. 2015-07-21T17:43:32.15 0.1 undecidable manual P 234 0.9056 54 0.22 92
IV.HLNI.HHZ. 2015-07-21T17:43:32.40 0.1 undecidable manual P 262 0.9416 54 -0.03 96
IV.MPNC.HHN. 2015-07-21T17:43:31.68 0.6 undecidable manual P 320 0.8544 54 0.46 44
IV.SSY.HHZ. 2015-07-21T17:43:31.06 0.1 undecidable manual P 247 0.84 54 0.03 97
IV.MPAZ.HHZ. 2015-07-21T17:43:31.82 0.6 undecidable manual S 356 0.4641 119 -0.84 42
IV.MCSR.HHE. 2015-07-21T17:43:31.60 0.1 undecidable manual P 312 0.8624 54 0.26 92
MN.CEL.HNZ. 2015-07-21T17:43:30.00 0.3 undecidable manual P 351 0.7797 107 -0.13 73
IV.AIO.HHE. 2015-07-21T17:43:30.72 0.1 undecidable manual P 307 0.8022 54 0.22 95
IV.HAGA.HHZ. 2015-07-21T17:43:29.54 0.1 undecidable manual P 254 0.7356 108 0.12 98
IV.MTTG.HHE. 2015-07-21T17:43:27.12 0.1 undecidable manual P 332 0.581 113 0.18 100
IV.SOI.EHZ. 2015-07-21T17:43:26.76 0.1 undecidable manual P 1 0.5837 113 -0.21 99
IV.MPAZ.HHZ. 2015-07-21T17:43:25.12 0.3 undecidable manual P 356 0.4641 119 -0.01 79
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HLNI.HHE. ML:1.8 5.79E-5 0.26 AML other m 2015-07-21T17:43:45.76
IV.HLNI.HHN. ML:1.8 5.49E-5 1.16 AML other m 2015-07-21T17:43:46.51
IV.MPAZ.HHE. ML:1.2 3.265E-5 0.88 AML other m 2015-07-21T17:43:32.74
IV.MPAZ.HHN. ML:1.4 4.535E-5 0.26 AML other m 2015-07-21T17:43:34.44
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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