Earthquake with magnitude of ML 2.4 on date 26-08-2018 and time 20:41:56 (Italy) in region Tirreno Meridionale (MARE)

A magnitude ML 2.4 earthquake occured in region: Tirreno Meridionale (MARE), on

  • 26-08-2018 18:41:56 (UTC)
  • 26-08-2018 20:41:56 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.6190, 13.9510 at 21 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
71 Km NE of Bagheria (55387 inhabitants)
76 Km NE of Palermo (674435 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 2.4 2018-08-26
18:41:56
38.619 13.9507 21 2019-04-24
14:50:54
Bollettino Sismico Italiano INGV 60281991
Reviewed
Rev100
ML 2.6 2018-08-26
18:41:54
38.7448 13.8873 19 2018-08-26
18:59:40
Sala Sismica INGV-Roma 60242321
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-08-26 18:41:56 ± 0.23
Latitude 38.6190 ± 0.0135
Longitude 13.9507 ± 0.0104
Depth (km) 21 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 60281991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1436
Semi-minor axis of confidence ellipse (meter) 606
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 186
Circular confidence region, given by single value of horizontal uncertainty (meter) 1440.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 186
Number of associated phases, regardless of their use for origin computation 30
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.37
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.46230
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 10
Magnitudes information

ML:2.4

Field Value
Value 2.4
Uncertainty 0.2
Num. used stations 9
Type of magnitude ML
Reference to an origin 60281991
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2019-03-27 10:30:04

ML:2.6

Field Value
Value 2.6
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 60242321
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-08-26 18:59:40
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MCIV.HHZ. 2018-08-26T18:43:56.22 3.0 undecidable manual Sn -2.2 0
IV.ARRO.EHZ. 2018-08-26T18:43:54.73 3.0 undecidable manual Sg 7.35 0
IV.ZONE.HHZ. 2018-08-26T18:43:47.26 3.0 undecidable manual Pn -1.66 0
GU.RNCA.HHZ. 2018-08-26T18:43:39.96 3.0 undecidable manual Pn 1.04 0
IV.GIGS.HHZ. 2018-08-26T18:43:34.06 3.0 negative manual P -7.82 0
CR.STON.BHZ. 2018-08-26T18:43:26.78 3.0 positive manual Pg 13.87 0
IV.VIVA.HHZ. 2018-08-26T18:43:20.67 3.0 undecidable manual Sn -7.2 0
IV.MCIV.HHZ. 2018-08-26T18:43:18.00 3.0 negative manual Pg 12.78 0
IV.CSP1.EHZ. 2018-08-26T18:43:15.47 3.0 negative manual Pg 10.4 0
IV.AMUR.HHZ. 2018-08-26T18:42:46.56 3.0 undecidable manual Pn 1.85 0
IV.HLNI.HHZ. 2018-08-26T18:42:42.13 0.6 undecidable manual S 150 162.3153 54 0.7 31
IV.MCRV.HHZ. 2018-08-26T18:42:33.66 3.0 negative manual Pn -1.52 0
IV.SPS2.HHZ. 2018-08-26T18:42:32.17 3.0 negative manual Pg 2.65 0
IV.CORL.HHZ. 2018-08-26T18:42:25.43 0.3 undecidable manual S 215 98.124 96 0.16 68
IV.PETRA.HHZ. 2018-08-26T18:42:23.53 0.6 undecidable manual S 171 88.3449 97 0.88 37
IV.RAFF.HHZ. 2018-08-26T18:42:22.36 0.1 undecidable manual P 167 159.0186 54 0.34 73
IV.HLNI.HHZ. 2018-08-26T18:42:21.97 0.1 undecidable manual P 150 162.3153 54 -0.46 72
IV.USI.HHE. 2018-08-26T18:42:18.35 0.6 undecidable manual S 279 67.5768 100 1.17 34
IV.PLLN.EHZ. 2018-08-26T18:42:18.58 0.6 undecidable manual S 166 71.4729 99 0.37 45
IV.SOLUN.HHE. 2018-08-26T18:42:17.34 0.3 undecidable manual S 212 68.8755 100 -0.18 70
IV.MPG.SHZ. 2018-08-26T18:42:17.91 0.6 undecidable manual S 226 72.1722 99 -0.49 43
IV.MUCR.HHZ. 2018-08-26T18:42:13.31 0.1 undecidable manual P 128 102.6195 96 -0.47 84
IV.CORL.HHZ. 2018-08-26T18:42:12.63 0.3 undecidable manual P 215 98.124 96 -0.47 63
IV.PETRA.HHZ. 2018-08-26T18:42:11.71 0.1 undecidable manual P 171 88.3449 97 0.12 92
IV.PLLN.EHZ. 2018-08-26T18:42:09.10 0.3 undecidable manual P 166 71.4729 99 0.08 72
IV.IACL.HHZ. 2018-08-26T18:42:09.47 0.6 undecidable manual S 105 36.3414 111 0.36 48
IV.MPG.SHZ. 2018-08-26T18:42:08.53 0.3 undecidable manual P 226 72.1722 99 -0.6 63
IV.SOLUN.HHE. 2018-08-26T18:42:08.44 0.3 undecidable manual P 212 68.8755 100 -0.19 71
IV.USI.HHE. 2018-08-26T18:42:08.65 0.1 undecidable manual P 279 67.5768 100 0.22 94
IV.IACL.HHZ. 2018-08-26T18:42:03.54 0.1 undecidable manual P 105 36.3414 111 -0.23 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.IACL.HHN. ML:2.5 0.00113076905 0.1664 AML other m 2018-08-26T18:42:10.68
IV.PLLN.EHE. ML:2.6 0.0005784698 0.4736 AML other m 2018-08-26T18:42:21.50
IV.MPG.SHE. ML:0.0 0.000085572235 0.2432 AML other m 2018-08-26T18:42:22.19
IV.PLLN.EHN. ML:2.7 0.0008865145999999999 0.3712 AML other m 2018-08-26T18:42:22.48
IV.MPG.SHN. ML:0.0 0.00009927617 0.4864 AML other m 2018-08-26T18:42:23.09
IV.PETRA.HHE. ML:2.5 0.00037706485 0.5888 AML other m 2018-08-26T18:42:25.25
IV.PETRA.HHN. ML:2.7 0.00056871435 0.384 AML other m 2018-08-26T18:42:28.62
IV.MUCR.HHE. ML:2.3 0.00017716925 0.4736 AML other m 2018-08-26T18:42:30.25
IV.MUCR.HHN. ML:2.4 0.0002224169 0.5376 AML other m 2018-08-26T18:42:30.67
IV.HLNI.HHE. ML:2.1 0.000054875955000000005 0.4224 AML other m 2018-08-26T18:42:45.12
IV.RAFF.HHE. ML:2.2 0.000073685505 0.9088 AML other m 2018-08-26T18:42:45.82
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
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Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
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