Earthquake with magnitude of ML 1.4 on date 21-01-2020 and time 17:09:30 (Italy) in region Costa Siciliana centro settentrionale (Palermo)

A magnitude ML 1.4 earthquake occured in region: Costa Siciliana centro settentrionale (Palermo), on

  • 21-01-2020 16:09:30 (UTC)
  • 21-01-2020 17:09:30 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 38.3, 14.18 at 8 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
63 Km E of Bagheria (55387 inhabitants)
74 Km E of Palermo (674435 inhabitants)
91 Km N of Caltanissetta (63360 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 1.4 2020-01-21
16:09:30
38.3 14.18 8 2020-07-18
21:08:19
Bollettino Sismico Italiano INGV 75943321
Reviewed
Rev100
ML 1.5 2020-01-21
16:09:30
37.75 14.26 38 2020-01-21
16:20:52
Sala Sismica INGV-Roma 75704021
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-21 16:09:30 ± 0.29
Latitude 38.30 ± 0.01
Longitude 14.18 ± 0.02
Depth (km) 8 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 75943321

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 2140
Semi-minor axis of confidence ellipse (meter) 1030
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 309
Circular confidence region, given by single value of horizontal uncertainty (meter) 2140
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 199
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.42
Epicentral distance of station closest to the epicenter (degree) 0.31117
Epicentral distance of station farthest from the epicenter (degree) 0.64571
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 75943321
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-03-06 11:17:00

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 75704021
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-21 16:20:52
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MUCR.HHZ. 2020-01-21T16:09:51.86 0.6 undecidable manual S 115 0.6061 50 0.12 62
IV.IFIL.HHN. 2020-01-21T16:09:46.33 0.6 undecidable manual S 50 0.4074 50 0.49 60
IV.MSFR.HHZ. 2020-01-21T16:09:46.94 0.3 undecidable manual S 129 0.4227 50 0.65 84
IV.ALJA.HHZ. 2020-01-21T16:09:44.50 0.3 undecidable manual P 211 0.6457 50 1 69
IV.CSLB.HHZ. 2020-01-21T16:09:44.77 0.3 undecidable manual S 194 0.3768 50 -0.15 97
IV.ILLI.HNN. 2020-01-21T16:09:43.88 0.6 undecidable manual P 76 0.6214 50 0.78 51
IV.PLLN.EHZ. 2020-01-21T16:09:42.89 0.3 undecidable manual S 185 0.3112 50 -0.08 100
IV.MUCR.HHZ. 2020-01-21T16:09:42.40 0.3 undecidable manual P 115 0.6061 50 -0.44 87
IV.IVPL.HNE. 2020-01-21T16:09:42.82 0.3 undecidable manual P 83 0.6349 50 -0.5 86
IV.PETRA.HHN. 2020-01-21T16:09:41.01 0.3 undecidable manual P 186 0.4712 50 0.49 89
IV.MSFR.HHZ. 2020-01-21T16:09:39.00 0.3 undecidable manual P 129 0.4227 50 -0.69 83
IV.IFIL.HHN. 2020-01-21T16:09:39.17 0.3 undecidable manual P 50 0.4074 50 -0.26 94
IV.CSLB.HHZ. 2020-01-21T16:09:38.52 0.3 undecidable manual P 194 0.3768 50 -0.38 93
IV.PLLN.EHZ. 2020-01-21T16:09:37.56 0.3 undecidable manual P 185 0.3112 50 -0.22 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PLLN.EHE. ML:0 0.000201 0.76 AML other m 2020-01-21T16:09:44.02
IV.PLLN.EHN. ML:0 0.00032517255 0.3456 AML other m 2020-01-21T16:09:45.29
IV.CSLB.HHE. ML:0 6.605E-5 1.58 AML other m 2020-01-21T16:09:46.19
IV.CSLB.HHN. ML:0 8.635E-5 0.82 AML other m 2020-01-21T16:09:46.67
IV.MSFR.HHN. ML:1.3 6.071829E-5 0.5952 AML other m 2020-01-21T16:09:46.62
IV.MSFR.HHE. ML:1.2 4.04503E-5 0.3424 AML other m 2020-01-21T16:09:47.60
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download