Earthquake with magnitude of ML 2.0 on date 26-05-2015 and time 15:12:21 (Italy) in region Costa Siracusana (Siracusa)

A magnitude ML 2.0 earthquake occured in region: Costa Siracusana (Siracusa), on

  • 26-05-2015 13:12:21 (UTC)
  • 26-05-2015 15:12:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.1820, 15.4620 at 23 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
20 Km NE of Siracusa (122291 inhabitants)
49 Km SE of Catania (314555 inhabitants)
55 Km SE of Acireale (52622 inhabitants)
71 Km E of Ragusa (73313 inhabitants)
72 Km NE of Modica (54633 inhabitants)
86 Km E of Vittoria (63339 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 2.0 2015-05-26
13:12:21
37.1825 15.4618 23 2016-01-08
08:44:50
Bollettino Sismico Italiano INGV 20306241
Reviewed
Rev100
ML 2.1 2015-05-26
13:12:21
37.1932 15.4947 20 2015-05-26
13:20:55
Sala Sismica INGV-Roma 19362921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2015-05-26 13:12:21 ± 0.13
Latitude 37.1825 ± 0.0054
Longitude 15.4618 ± 0.0079
Depth (km) 23 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 20306241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 635
Semi-minor axis of confidence ellipse (meter) 473
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 107
Circular confidence region, given by single value of horizontal uncertainty (meter) 640.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 228
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) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.20055
Epicentral distance of station farthest from the epicenter (degree) 0.90022
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 20306241
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2015-07-15 08:30:43

ML:2.1

Field Value
Value 2.1
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 19362921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2015-05-26 13:20:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MCSR.HHE. 2015-05-26T13:12:51.18 1.0 undecidable manual S 348 99.9222 98 0.39 20
IV.AIO.HHE. 2015-05-26T13:12:48.76 0.6 undecidable manual S 347 89.7435 99 0.66 39
IV.HMDC.HHZ. 2015-05-26T13:12:41.66 0.3 undecidable manual S 248 64.9905 103 0.06 71
IV.HPAC.HHE. 2015-05-26T13:12:41.89 0.3 undecidable manual S 216 64.6908 103 0.37 66
IV.MEU.SHZ. 2015-05-26T13:12:39.35 0.6 undecidable manual S 262 56.3991 105 -0.03 47
IV.HLNI.HHZ. 2015-05-26T13:12:39.24 0.3 undecidable manual S 290 55.2003 105 0.16 71
IV.RAFF.HHZ. 2015-05-26T13:12:38.18 0.1 positive manual P 273 97.2249 98 0.2 86
IV.MCSR.HHE. 2015-05-26T13:12:38.12 0.1 undecidable manual P 348 99.9222 98 -0.27 84
IV.AIO.HHE. 2015-05-26T13:12:37.03 0.3 undecidable manual P 347 89.7435 99 0.19 65
IV.HAVL.HHZ. 2015-05-26T13:12:35.22 0.3 undecidable manual S 231 38.9277 113 0.26 71
IV.HAGA.HHZ. 2015-05-26T13:12:32.76 0.3 undecidable manual S 293 29.3484 121 0.07 75
IV.HMDC.HHZ. 2015-05-26T13:12:32.85 0.1 positive manual P 248 64.9905 103 -0.23 90
IV.HPAC.HHE. 2015-05-26T13:12:32.89 0.1 undecidable manual P 216 64.6908 103 -0.14 93
IV.MEU.SHZ. 2015-05-26T13:12:31.50 0.3 undecidable manual P 262 56.3991 105 -0.3 68
IV.HLNI.HHZ. 2015-05-26T13:12:31.51 0.1 negative manual P 290 55.2003 105 -0.11 94
IV.AGST.EHE. 2015-05-26T13:12:30.78 0.6 undecidable manual S 292 22.2555 130 -0.37 47
IV.HAVL.HHZ. 2015-05-26T13:12:29.22 0.1 positive manual P 231 38.9277 113 -0.03 99
IV.HAGA.HHZ. 2015-05-26T13:12:27.85 0.1 negative manual P 293 29.3484 121 -0.08 99
IV.AGST.EHE. 2015-05-26T13:12:26.93 0.1 undecidable manual P 292 22.2555 130 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HAGA.HHE. ML:1.8 0.000246 0.5 AML other m 2015-05-26T13:12:32.84
IV.HAGA.HHN. ML:1.9 0.0003355 0.5 AML other m 2015-05-26T13:12:32.84
IV.HAVL.HHE. ML:2.2 0.00044950000000000003 0.2 AML other m 2015-05-26T13:12:35.45
IV.HAVL.HHN. ML:2.2 0.000489 0.34 AML other m 2015-05-26T13:12:35.70
IV.HLNI.HHN. ML:2.4 0.0005085 0.26 AML other m 2015-05-26T13:12:39.45
IV.HLNI.HHE. ML:2.3 0.00046100000000000004 0.86 AML other m 2015-05-26T13:12:39.44
IV.HMDC.HHN. ML:1.8 0.00010585 1.3 AML other m 2015-05-26T13:12:41.78
IV.HMDC.HHE. ML:1.7 0.00009305 0.68 AML other m 2015-05-26T13:12:46.79
IV.MEU.SHN. ML:0.0 0.000176 0.32 AML other m 2015-05-26T13:12:41.52
IV.MEU.SHE. ML:0.0 0.000155 1.16 AML other m 2015-05-26T13:12:48.44
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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