Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 23-08-2013 and time 23:15:33 (Italy) in region Costa Ionica Crotonese (Crotone)

A magnitude ML 1.7 earthquake occured in region: Costa Ionica Crotonese (Crotone), on

  • 23-08-2013 21:15:33 (UTC)
  • 23-08-2013 23:15:33 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 39.2330, 17.2080 at 11 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Strongoli KR 14 6571 6571
Cirò Marina KR 16 14902 21473
Melissa KR 18 3549 25022
Rocca di Neto KR 18 5687 30709
Crotone KR 18 62178 92887

Municipalities with at least 50000 inhabitants

An earthquake occurred to
18 Km NE of Crotone (62178 inhabitants)
64 Km NE of Catanzaro (90612 inhabitants)
82 Km E of Lamezia Terme (70714 inhabitants)
82 Km E 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 2013-08-23
21:15:33		 39.2332 17.2077 11 2015-01-20
11:28:44		 Bollettino Sismico Italiano INGV 5674001
Reviewed
Rev100 		ML 1.6 2013-08-23
21:15:32		 39.2297 17.2802 10 2014-10-21
12:08:56		 Sala Sismica INGV-Roma 4326691
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2013-08-23 21:15:33 ± 0.32
Latitude 39.2332 ± 0.0171
Longitude 17.2077 ± 0.0244
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 5674001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2420
Semi-minor axis of confidence ellipse (meter) 1470
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 311
Circular confidence region, given by single value of horizontal uncertainty (meter) 2420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 168
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.48
Epicentral distance of station closest to the epicenter (degree) 0.35163
Epicentral distance of station farthest from the epicenter (degree) 1.58640
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 5
Type of magnitude ML
Reference to an origin 5674001
Agency INGV
Autore Manually reviewed by Franco Mele
Time of creation (UTC) 2015-01-15 13:27:39

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 3
Type of magnitude ML
Reference to an origin 4326691
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2013-08-23 21:28:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MIGL.HHE. 2013-08-23T21:16:01.61 0.3 undecidable manual P 337 165.5121 50 1.32 35
IV.MPAZ.HHZ. 2013-08-23T21:16:01.89 0.3 undecidable manual P 217 176.0904 38 -0.02 54
IV.NOCI.HHE. 2013-08-23T21:16:00.30 0.6 undecidable manual P 356 172.9935 50 -1.15 25
GE.MATE.HHE. 2013-08-23T21:16:00.32 0.3 undecidable manual P 345 162.8148 50 0.45 53
IV.CRAC.EHE. 2013-08-23T21:15:58.11 0.6 undecidable manual P 333 143.3454 50 1.23 27
IV.SCTE.HHZ. 2013-08-23T21:15:56.56 0.3 undecidable manual P 49 142.2465 50 -0.15 61
IV.PLAC.HHE. 2013-08-23T21:15:52.71 0.6 undecidable manual P 218 109.4127 50 1.06 32
IV.SALB.HHE. 2013-08-23T21:15:50.51 1.0 undecidable manual P 314 102.6195 50 -0.09 22
IV.PIPA.HHZ. 2013-08-23T21:15:48.10 0.6 undecidable manual S 310 43.7229 50 0.56 44
IV.SERS.HHZ. 2013-08-23T21:15:48.90 0.3 undecidable manual S 244 49.7169 50 -0.25 72
IV.CAR1.HHZ. 2013-08-23T21:15:47.54 0.3 undecidable manual P 272 85.6476 50 -0.44 64
MN.TIP.HHZ. 2013-08-23T21:15:46.70 0.3 undecidable manual S 261 39.0276 50 0.4 70
IV.CELI.HHE. 2013-08-23T21:15:43.80 0.1 undecidable manual P 288 62.8926 50 -0.67 83
IV.SERS.HHZ. 2013-08-23T21:15:42.71 0.1 undecidable manual P 244 49.7169 50 0.26 95
IV.PIPA.HHZ. 2013-08-23T21:15:40.72 0.1 undecidable manual P 310 43.7229 50 -0.8 81
MN.TIP.HHZ. 2013-08-23T21:15:40.69 0.1 undecidable manual P 261 39.0276 50 -0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CAR1.HHE. ML:1.8 0.00007364999999999999 0.46 AML other m 2013-08-23T21:16:09.88
IV.CAR1.HHN. ML:1.7 0.00005735 0.62 AML other m 2013-08-23T21:16:12.43
IV.PIPA.HHE. ML:2.0 0.0003215 0.78 AML other m 2013-08-23T21:15:51.01
IV.PIPA.HHN. ML:1.8 0.0001855 0.32 AML other m 2013-08-23T21:15:53.20
IV.SCTE.HHN. ML:2.1 0.00006964999999999999 1.54 AML other m 2013-08-23T21:16:22.66
IV.SCTE.HHE. ML:2.2 0.00008504999999999998 1.52 AML other m 2013-08-23T21:16:22.68
IV.SERS.HHN. ML:1.5 0.00008665 0.62 AML other m 2013-08-23T21:15:51.24
IV.SERS.HHE. ML:1.6 0.00010415 0.6 AML other m 2013-08-23T21:15:54.83
MN.TIP.HHE. ML:1.5 0.00010095 0.5 AML other m 2013-08-23T21:15:47.08
MN.TIP.HHN. ML:1.3 0.00006415 0.34 AML other m 2013-08-23T21:15:47.21
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