Earthquake with magnitude of ML 2.5 on date 17-05-2015 and time 04:19:58 (Italy) in region Tirreno Meridionale (MARE)

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

  • 17-05-2015 02:19:58 (UTC)
  • 17-05-2015 04:19:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.4730, 12.8310 at 27 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
58 Km NE of Trapani (68759 inhabitants)
61 Km NW of Palermo (674435 inhabitants)
74 Km NW of Bagheria (55387 inhabitants)
82 Km NE of Marsala (83194 inhabitants)
94 Km N of Mazara del Vallo (51718 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 2015-05-17
02:19:58
38.4728 12.8313 27 2016-01-08
08:44:50
Bollettino Sismico Italiano INGV 20071691
Reviewed
Rev100
ML 2.5 2015-05-17
02:19:58
38.4512 12.7625 10 2015-05-17
02:28:19
Sala Sismica INGV-Roma 19160201
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-05-17 02:19:58 ± 0.26
Latitude 38.4728 ± 0.0162
Longitude 12.8313 ± 0.0253
Depth (km) 27 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 20071691

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2249
Semi-minor axis of confidence ellipse (meter) 1252
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 120
Circular confidence region, given by single value of horizontal uncertainty (meter) 2250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
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) 0.35883
Epicentral distance of station farthest from the epicenter (degree) 2.87064
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 19160201
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-05-17 02:28:18

ML:2.5

Field Value
Value 2.5
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 20071691
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-07-03 08:13:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
MN.VSL.BHE. 2015-05-17T02:20:43.34 0.1 undecidable manual P 292 318.6366 54 0.15 27
IV.SOLUN.HHZ. 2015-05-17T02:20:21.81 1.0 undecidable manual S 124 74.2701 104 0.62 22
IV.CSLB.HHZ. 2015-05-17T02:20:18.70 0.3 undecidable manual P 119 122.2887 54 -0.05 66
IV.ALJA.HHZ. 2015-05-17T02:20:17.89 0.1 undecidable manual P 135 113.6973 99 0.39 85
IV.MPG.SHZ. 2015-05-17T02:20:16.78 0.6 undecidable manual S 127 57.498 109 -0.13 49
IV.MMGO.SHZ. 2015-05-17T02:20:13.96 0.3 undecidable manual P 172 90.8424 102 -0.08 70
IV.USI.HHZ. 2015-05-17T02:20:12.95 0.3 undecidable manual S 49 39.8268 118 0.37 73
IV.SOLUN.HHZ. 2015-05-17T02:20:11.57 0.1 undecidable manual P 124 74.2701 104 0.03 98
IV.MPG.SHZ. 2015-05-17T02:20:08.37 0.1 undecidable manual P 127 57.498 109 -0.7 83
IV.ERC.EHZ. 2015-05-17T02:20:08.66 0.3 undecidable manual P 204 52.8027 111 0.28 74
IV.USI.HHZ. 2015-05-17T02:20:06.31 0.1 undecidable manual P 49 39.8268 118 -0.26 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ALJA.HHE. ML:2.2 0.00013450000000000002 1.48 AML other m 2015-05-17T02:20:41.72
IV.ALJA.HHN. ML:2.4 0.0001795 0.64 AML other m 2015-05-17T02:20:44.49
IV.MPG.SHN. ML:0.0 0.0003655 1.56 AML other m 2015-05-17T02:20:17.40
IV.MPG.SHE. ML:0.0 0.00032 0.2 AML other m 2015-05-17T02:20:18.94
IV.USI.HHE. ML:2.6 0.0012250000000000002 0.56 AML other m 2015-05-17T02:20:15.11
IV.USI.HHN. ML:2.7 0.0014100000000000002 0.2 AML other m 2015-05-17T02:20:15.25
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