Earthquake with magnitude of ML 1.7 on date 30-08-2021 and time 17:52:07 (UTC) in region Costa Siciliana centro settentrionale (Palermo)

A magnitude ML 1.7 earthquake occured in region: Costa Siciliana centro settentrionale (Palermo), on

  • 30-08-2021 17:52:07 (UTC)
  • 30-08-2021 19:52:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.1150, 13.8920 at 9 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Lascari PA 13 3588 3588
Campofelice di Roccella PA 14 7537 11125
Cefalù PA 14 14393 25518
Gratteri PA 18 963 26481

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km E of Bagheria (55387 inhabitants)
46 Km E of Palermo (674435 inhabitants)
71 Km N of Caltanissetta (63360 inhabitants)
93 Km N of Agrigento (59770 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 2021-08-30
17:52:07
38.1152 13.8922 9 2021-12-29
11:12:29
Bollettino Sismico Italiano INGV 95306801
Reviewed
Rev100
ML 1.8 2021-08-30
17:52:07
38.1278 13.8908 4 2021-08-30
17:58:57
Sala Sismica INGV-Roma 94829341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-08-30 17:52:07 ± 0.13
Latitude 38.1152 ± 0.0081
Longitude 13.8922 ± 0.0046
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 95306801

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 834
Semi-minor axis of confidence ellipse (meter) 335
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 184
Circular confidence region, given by single value of horizontal uncertainty (meter) 830.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 27
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.14034
Number of stations at which the event was observed 29
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 22
Type of magnitude ML
Reference to an origin 95306801
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-17 13:46:41

ML:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 94829341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-08-30 17:58:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TST02.HHZ. 2021-08-30T17:53:56.09 3.0 undecidable manual Sn -2.77 0
MN.KLV.HHZ. 2021-08-30T17:53:43.39 3.0 negative manual P -1.66 0
IV.APEC.HHZ. 2021-08-30T17:53:32.87 3.0 undecidable manual P 1.09 0
IX.MNT3.EHZ.02 2021-08-30T17:53:29.65 3.0 undecidable manual Sn -4.49 0
IX.SNR3.EHZ.02 2021-08-30T17:53:25.35 3.0 undecidable manual Sn -7.63 0
IV.SPS2.HHZ. 2021-08-30T17:53:21.68 3.0 undecidable manual Sg 2.81 0
IV.SGTA.HHZ. 2021-08-30T17:53:04.71 3.0 undecidable manual P 5.1 0
IX.NSC3.EHZ.02 2021-08-30T17:53:03.73 3.0 undecidable manual P 8.73 0
IV.MCRV.HHZ. 2021-08-30T17:52:51.62 3.0 undecidable manual P -2.72 0
IV.HVZN.HHZ. 2021-08-30T17:52:30.38 0.3 undecidable manual P 145 126.5733 50 1.43 0
IV.MSFR.HHZ. 2021-08-30T17:52:28.39 0.6 undecidable manual S 98 61.7937 50 1.24 0
IV.RAFF.HHZ. 2021-08-30T17:52:28.21 0.3 undecidable manual P 157 107.3148 50 2.24 0
IV.MMGO.HHN. 2021-08-30T17:52:25.85 0.3 undecidable manual P 238 94.6386 50 1.84 0
IV.CRJA.HHN. 2021-08-30T17:52:25.13 0.6 undecidable manual P 246 85.0482 50 2.59 0
IV.USI.HHE. 2021-08-30T17:52:23.63 0.3 undecidable manual P 317 90.3429 50 0.27 0
IV.MUCR.HHZ. 2021-08-30T17:52:23.31 0.3 undecidable manual P 95 86.1471 50 0.61 0
IV.MBFT.HHZ. 2021-08-30T17:52:23.46 0.6 undecidable manual P 257 84.1491 50 1.06 0
IV.MCT.HHN. 2021-08-30T17:52:21.23 0.6 undecidable manual P 204 60.495 50 2.48 0
IV.MCPD.HHZ. 2021-08-30T17:52:21.35 0.3 undecidable manual P 89 73.1712 50 0.64 0
IV.GALF.HHZ. 2021-08-30T17:52:21.49 0.6 undecidable manual P 127 74.1702 50 0.63 0
IV.PETRA.HHZ. 2021-08-30T17:52:20.65 0.6 undecidable manual S 148 36.8298 50 0.15 44
IV.IACL.HHE. 2021-08-30T17:52:19.75 0.3 undecidable manual P 41 61.3941 50 0.85 0
IV.RESU.HHZ. 2021-08-30T17:52:19.34 0.3 undecidable manual P 164 53.9016 50 1.6 4
IV.MSFR.HHZ. 2021-08-30T17:52:19.76 0.1 undecidable manual P 98 61.7937 50 0.81 0
IV.SOLUN.HHZ. 2021-08-30T17:52:18.63 0.3 undecidable manual S 265 31.4463 50 -0.45 70
IV.MPG.HHZ. 2021-08-30T17:52:17.04 0.3 undecidable manual P 277 46.7199 50 0.41 29
IV.PLLN.EHZ. 2021-08-30T17:52:17.35 0.6 undecidable manual S 122 25.752 109 0.14 50
IV.SCIAR.HHZ. 2021-08-30T17:52:16.39 0.3 undecidable manual S 213 23.0547 111 0.08 76
IV.CSLB.HHZ. 2021-08-30T17:52:16.42 0.3 undecidable manual S 144 24.4533 110 -0.35 72
IV.PETRA.HHZ. 2021-08-30T17:52:15.30 0.1 undecidable manual P 148 36.8298 50 0.19 87
IV.SOLUN.HHZ. 2021-08-30T17:52:14.25 0.3 undecidable manual P 265 31.4463 50 -0.03 77
IV.GIB.HHZ. 2021-08-30T17:52:14.66 0.3 undecidable manual S 140 18.1707 116 -0.1 76
IV.PLLN.EHZ. 2021-08-30T17:52:13.17 0.3 undecidable manual P 122 25.752 109 -0.04 77
IV.CSLB.HHZ. 2021-08-30T17:52:12.68 0.1 negative manual P 144 24.4533 110 -0.28 98
IV.SCIAR.HHZ. 2021-08-30T17:52:12.94 0.1 undecidable manual P 213 23.0547 111 0.25 98
IV.GIB.HHZ. 2021-08-30T17:52:11.96 0.1 negative manual P 140 18.1707 116 0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GIB.HHE. ML:1.9 0.0006495 0.86 AML other m 2021-08-30T17:52:15.06
IV.GIB.HHN. ML:1.9 0.0006630000000000001 0.54 AML other m 2021-08-30T17:52:16.54
IV.SCIAR.HNN. ML:1.9 0.0005395 0.4 AML other m 2021-08-30T17:52:16.66
IV.SCIAR.HHN. ML:1.9 0.0005535000000000001 0.22 AML other m 2021-08-30T17:52:17.54
IV.CSLB.HHN. ML:1.5 0.00020250000000000002 0.18 AML other m 2021-08-30T17:52:17.68
IV.CSLB.HHE. ML:1.5 0.00021100000000000003 0.98 AML other m 2021-08-30T17:52:17.39
IV.SCIAR.HNE. ML:1.8 0.0004195 0.5 AML other m 2021-08-30T17:52:18.09
IV.SCIAR.HHE. ML:1.9 0.000514 0.42 AML other m 2021-08-30T17:52:18.34
IV.PLLN.EHE. ML:1.7 0.000301 0.94 AML other m 2021-08-30T17:52:18.26
IV.SOLUN.HHE. ML:1.8 0.000275 0.68 AML other m 2021-08-30T17:52:19.11
IV.SOLUN.HHN. ML:1.7 0.0002475 0.48 AML other m 2021-08-30T17:52:20.27
IV.PETRA.HHE. ML:1.8 0.00023449999999999998 0.78 AML other m 2021-08-30T17:52:22.71
IV.PLLN.EHN. ML:1.8 0.0004115 0.5 AML other m 2021-08-30T17:52:23.35
IV.PETRA.HHN. ML:1.6 0.00015350000000000002 1.54 AML other m 2021-08-30T17:52:24.84
IV.MPG.HHE. ML:1.3 0.000057249999999999996 1.18 AML other m 2021-08-30T17:52:26.12
IV.MPG.HHN. ML:1.5 0.0000956 0.92 AML other m 2021-08-30T17:52:26.26
IV.MSFR.HHE. ML:1.4 0.000043340984999999996 2.1504 AML other m 2021-08-30T17:52:32.02
IV.MSFR.HHN. ML:1.2 0.00003455008 0.6144 AML other m 2021-08-30T17:52:34.71
IV.GALF.HHE. ML:2.1 0.000184 0.44 AML other m 2021-08-30T17:52:36.43
IV.GALF.HHN. ML:2.0 0.000142 0.52 AML other m 2021-08-30T17:52:36.67
IV.MUCR.HHE. ML:1.7 0.00006419999999999999 0.56 AML other m 2021-08-30T17:52:42.54
IV.MUCR.HHN. ML:1.8 0.00007185 0.42 AML other m 2021-08-30T17:52:43.54
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