Earthquake with magnitude of ML 1.6 on date 03-04-2021 and time 15:27:10 (Italy) in region Costa Siciliana centro settentrionale (Palermo)

A magnitude ML 1.6 earthquake occured in region: Costa Siciliana centro settentrionale (Palermo), on

  • 03-04-2021 13:27:10 (UTC)
  • 03-04-2021 15:27:10 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 38.1820, 13.0560 at 10 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
Terrasini PA 4 12320 12320
Cinisi PA 6 12418 24738
Carini PA 12 38455 63193
Trappeto PA 13 3174 66367
Giardinello PA 14 2337 68704
Montelepre PA 15 6280 74984
Balestrate PA 15 6436 81420
Partinico PA 16 32079 113499
Capaci PA 16 11446 124945
Torretta PA 17 4358 129303
Isola delle Femmine PA 17 7290 136593
Borgetto PA 17 7419 144012

Municipalities with at least 50000 inhabitants

An earthquake occurred to
28 Km W of Palermo (674435 inhabitants)
42 Km W of Bagheria (55387 inhabitants)
51 Km E of Trapani (68759 inhabitants)
69 Km NE of Marsala (83194 inhabitants)
72 Km NE 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 1.6 2021-04-03
13:27:10
38.1825 13.0557 10 2021-07-12
16:55:17
Bollettino Sismico Italiano INGV 92266271
Reviewed
Rev100
ML 1.5 2021-04-03
13:27:10
38.1842 13.0582 6 2021-04-03
13:33:14
Sala Sismica INGV-Roma 88740921
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-03 13:27:10 ± 0.22
Latitude 38.1825 ± 0.0144
Longitude 13.0557 ± 0.0172
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 92266271

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1790
Semi-minor axis of confidence ellipse (meter) 1210
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 320
Circular confidence region, given by single value of horizontal uncertainty (meter) 1790.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.49
Epicentral distance of station closest to the epicenter (degree) 0.24012
Epicentral distance of station farthest from the epicenter (degree) 0.87594
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:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 88740921
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-03 13:33:14

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 92266271
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-05 15:03:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.USI.HHZ. 2021-04-03T13:27:28.62 0.6 undecidable manual S 10 59.2962 50 -0.04 60
IV.PLLN.EHN. 2021-04-03T13:27:27.43 1.0 undecidable manual P 102 97.2249 50 0.74 23
IV.GIB.HHE. 2021-04-03T13:27:25.65 0.3 undecidable manual P 104 87.3459 50 0.48 77
IV.CSLB.HHE. 2021-04-03T13:27:25.93 0.3 undecidable manual P 107 91.6416 50 0.1 83
IV.SOLUN.HHZ. 2021-04-03T13:27:24.69 0.6 undecidable manual S 103 42.8238 50 0.42 57
IV.MTGR.HHZ. 2021-04-03T13:27:24.31 0.6 undecidable manual S 219 41.2254 50 0.46 56
IV.USI.HHZ. 2021-04-03T13:27:21.03 0.3 undecidable manual P 10 59.2962 50 0.19 87
IV.MPG.HHZ. 2021-04-03T13:27:19.85 0.6 undecidable manual S 95 26.6511 50 -0.1 62
IV.MBFT.HHZ. 2021-04-03T13:27:19.56 0.6 undecidable manual S 199 27.6501 50 -0.68 53
IV.CRJA.HHE. 2021-04-03T13:27:19.24 0.3 undecidable manual P 186 42.5241 50 0.99 68
IV.MTGR.HHZ. 2021-04-03T13:27:18.96 0.3 undecidable manual P 219 41.2254 50 0.9 71
IV.SOLUN.HHZ. 2021-04-03T13:27:18.05 0.3 undecidable manual P 103 42.8238 50 -0.25 88
IV.ERC.EHN. 2021-04-03T13:27:17.80 0.6 undecidable manual P 249 43.9227 50 -0.67 52
IV.MBFT.HHZ. 2021-04-03T13:27:15.14 0.1 undecidable manual P 199 27.6501 50 -0.83 100
IV.MPG.HHZ. 2021-04-03T13:27:14.69 0.3 undecidable manual P 95 26.6511 50 -1.12 66
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MPG.HHN. ML:1.7 0.00029749999999999997 0.92 AML other m 2021-04-03T13:27:22.71
IV.MBFT.HHE. ML:1.3 0.00009434187999999999 0.16 AML other m 2021-04-03T13:27:22.34
IV.MPG.HHE. ML:1.6 0.00020656260000000002 0.4416 AML other m 2021-04-03T13:27:23.59
IV.MBFT.HHN. ML:1.3 0.00010284999999999999 0.24 AML other m 2021-04-03T13:27:24.70
IV.MBFT.HNN. ML:1.4 0.00012128915 0.96 AML other m 2021-04-03T13:27:25.55
IV.SOLUN.HHN. ML:1.8 0.00019261905 0.416 AML other m 2021-04-03T13:27:27.76
IV.SOLUN.HHE. ML:1.7 0.0001643695 0.5952 AML other m 2021-04-03T13:27:27.85
IV.MBFT.HNE. ML:1.3 0.00009875601 1.5648 AML other m 2021-04-03T13:27:28.07
IV.USI.HHN. ML:2.7 0.0010445088499999998 0.6016 AML other m 2021-04-03T13:27:30.52
IV.USI.HHE. ML:2.2 0.000297 0.38 AML other m 2021-04-03T13:27:31.56
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