Earthquake with magnitude of ML 1.5 on date 11-03-2020 and time 08:17:17 (UTC) in region 4 km E Petralia Soprana (PA)

A magnitude ML 1.5 earthquake occured in region: 4 km E Petralia Soprana (PA), on

  • 11-03-2020 08:17:17 (UTC)
  • 11-03-2020 09:17:17 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8, 14.15 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

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Petralia Soprana PA 4 3360 3360
Gangi PA 5 6811 10171
Petralia Sottana PA 5 2821 12992
Geraci Siculo PA 7 1945 14937
Bompietro PA 7 1401 16338
Blufi PA 8 1029 17367
Castellana Sicula PA 10 3411 20778
Alimena PA 12 2032 22810
San Mauro Castelverde PA 13 1701 24511
Polizzi Generosa PA 13 3407 27918
Castelbuono PA 16 8943 36861
Resuttano CL 17 2038 38899
Castel di Lucio ME 17 1294 40193
Sperlinga EN 18 805 40998

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km N of Caltanissetta (63360 inhabitants)
64 Km SE of Bagheria (55387 inhabitants)
74 Km NE of Agrigento (59770 inhabitants)
78 Km E of Palermo (674435 inhabitants)
82 Km N of Gela (75827 inhabitants)
89 Km W of Catania (314555 inhabitants)
92 Km W of Acireale (52622 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
Md 1.7
ML 1.5
2020-03-11
08:17:17
37.8 14.15 9 2020-07-18
21:08:40
Bollettino Sismico Italiano INGV 80034511
Reviewed
Rev100
Md 1.8
ML 1.8
2020-03-11
08:17:16
37.79 14.22 6 2020-03-11
08:29:36
Sala Sismica INGV-Roma 77186271
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-11 08:17:17 ± 0.21
Latitude 37.80 ± 0.01
Longitude 14.15 ± 0.02
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80034511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1535
Semi-minor axis of confidence ellipse (meter) 1217
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 284
Circular confidence region, given by single value of horizontal uncertainty (meter) 1540
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 156
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.04497
Epicentral distance of station farthest from the epicenter (degree) 0.41908
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.4
Num. used stations 4
Type of magnitude ML
Reference to an origin 77186271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-11 08:29:36

ML:1.5

Field Value
Value 1.5
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 80034511
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-22 16:51:13

Md:1.8

Field Value
Value 1.8
Uncertainty 0.2
Num. used stations 3
Type of magnitude Md
Reference to an origin 77186271
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-11 08:29:36

Md:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 3
Type of magnitude Md
Reference to an origin 80034511
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-06-22 16:51:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GIB.HHE. 2020-03-11T08:17:26.30 0.3 undecidable manual S 333 0.2149 110 0.28 70
IV.MSFR.HHZ. 2020-03-11T08:17:26.88 0.6 undecidable manual P 56 0.4191 50 0.72 40
IV.PLLN.EHZ. 2020-03-11T08:17:25.50 0.6 undecidable manual S 358 0.1934 112 0.25 47
IV.ALJA.HHE. 2020-03-11T08:17:24.77 0.3 undecidable manual P 261 0.3184 50 0.32 69
IV.GALF.HHZ. 2020-03-11T08:17:24.50 0.6 undecidable manual P 105 0.3399 50 -0.31 45
IV.CSLB.HHZ. 2020-03-11T08:17:23.70 0.3 undecidable manual S 332 0.1565 116 -0.25 70
IV.GIB.HHE. 2020-03-11T08:17:21.98 0.3 undecidable manual P 333 0.2149 110 -0.34 68
IV.PETRA.HHZ. 2020-03-11T08:17:21.10 0.6 undecidable manual S 320 0.045 150 0.45 45
IV.PLLN.EHZ. 2020-03-11T08:17:21.71 0.3 undecidable manual P 358 0.1934 112 -0.16 72
IV.CSLB.HHZ. 2020-03-11T08:17:20.82 0.3 undecidable manual P 332 0.1565 116 -0.3 70
IV.PETRA.HHZ. 2020-03-11T08:17:19.10 0.1 negative manual P 320 0.045 150 -0.11 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PETRA.HHE. ML:2.1 0.00245 0.42 AML other m 2020-03-11T08:17:21.41
IV.PETRA.HHN. ML:2 0.00192 0.3 AML other m 2020-03-11T08:17:21.51
IV.PLLN.EHE. ML:1.4 0.000174 0.62 AML other m 2020-03-11T08:17:25.80
IV.PLLN.EHN. ML:1.6 0.0002485 1.24 AML other m 2020-03-11T08:17:26.71
IV.PETRA.HHZ. Md:1.6 16 END duration s
IV.CSLB.HHZ. Md:1.8 19 END duration s
IV.GIB.HHE. Md:1.9 22 END duration s
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