Earthquake with magnitude of ML 1.6 on date 04-09-2020 and time 14:43:06 (UTC) in region 3 km N Cerami (EN)

A magnitude ML 1.6 earthquake occured in region: 3 km N Cerami (EN), on

  • 04-09-2020 14:43:06 (UTC)
  • 04-09-2020 16:43:06 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.84, 14.51 at 34 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Cerami EN 3 2006 2006
Capizzi ME 3 3176 5182
Troina EN 10 9373 14555
Nicosia EN 14 13899 28454
Gagliano Castelferrato EN 14 3593 32047
Sperlinga EN 16 805 32852
San Teodoro ME 16 1403 34255
Mistretta ME 17 4791 39046
CesarĂ² ME 18 2439 41485
Castel di Lucio ME 19 1294 42779
Agira EN 20 8345 51124

Municipalities with at least 50000 inhabitants

An earthquake occurred to
55 Km NE of Caltanissetta (63360 inhabitants)
63 Km NW of Catania (314555 inhabitants)
63 Km W of Acireale (52622 inhabitants)
89 Km N of Gela (75827 inhabitants)
92 Km E of Bagheria (55387 inhabitants)
99 Km N of Vittoria (63339 inhabitants)
100 Km W of Messina (238439 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.6 2020-09-04
14:43:06
37.84 14.51 35 2020-09-04
14:57:41
Sala Sismica INGV-Roma 82621141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-04 14:43:06 ± 0.21
Latitude 37.84 ± 0.01
Longitude 14.51 ± 0.01
Depth (km) 35 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82621141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1513
Semi-minor axis of confidence ellipse (meter) 695
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 20
Circular confidence region, given by single value of horizontal uncertainty (meter) 1510
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 20
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.4
Epicentral distance of station closest to the epicenter (degree) 0.1322
Epicentral distance of station farthest from the epicenter (degree) 0.81029
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 11
Type of magnitude ML
Reference to an origin 82621141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-04 14:57:41
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SSY.HHZ. 2020-09-04T14:43:34.24 0.6 undecidable manual S 147 0.8103 54 0.64 52
IV.HLNI.HHZ. 2020-09-04T14:43:27.38 0.6 undecidable manual S 150 0.5639 114 0.43 59
IV.GIB.HHZ. 2020-09-04T14:43:23.84 0.6 undecidable manual S 292 0.4146 123 0.79 53
IV.CSLB.HHZ. 2020-09-04T14:43:22.58 0.6 undecidable manual S 286 0.3741 126 0.53 60
IV.SSY.HHZ. 2020-09-04T14:43:21.98 0.3 undecidable manual P 147 0.8103 54 -0.13 90
IV.PLLN.EHZ. 2020-09-04T14:43:21.42 0.6 undecidable manual S 298 0.3318 129 0.36 63
IV.MUCR.HHZ. 2020-09-04T14:43:21.58 0.6 undecidable manual S 54 0.3507 127 0.06 66
IV.EPZF.HHZ. 2020-09-04T14:43:21.72 0.6 undecidable manual S 92 0.2707 135 1.98 27
IV.MSFR.HHZ. 2020-09-04T14:43:18.36 0.6 undecidable manual S 17 0.2068 144 -0.14 67
IV.CAGR.HHZ. 2020-09-04T14:43:18.44 0.6 undecidable manual S 183 0.214 143 -0.19 67
IV.GALF.HHZ. 2020-09-04T14:43:17.30 0.6 undecidable manual S 162 0.1322 155 -0.06 69
IV.HLNI.HHZ. 2020-09-04T14:43:17.65 0.3 undecidable manual P 150 0.5639 114 -0.63 83
IV.CSLB.HHZ. 2020-09-04T14:43:15.40 0.3 undecidable manual P 286 0.3741 126 -0.05 100
IV.GIB.HHZ. 2020-09-04T14:43:15.94 0.3 undecidable manual P 292 0.4146 123 -0.08 98
IV.MUCR.HHZ. 2020-09-04T14:43:14.77 0.3 undecidable manual P 54 0.3507 127 -0.37 94
IV.EPZF.HHZ. 2020-09-04T14:43:14.91 0.3 undecidable manual P 92 0.2707 135 0.8 82
IV.PLLN.EHZ. 2020-09-04T14:43:14.63 0.3 undecidable manual P 298 0.3318 129 -0.25 97
IV.CAGR.HHZ. 2020-09-04T14:43:13.28 0.3 undecidable manual P 183 0.214 143 -0.19 100
IV.GALF.HHZ. 2020-09-04T14:43:12.28 0.3 undecidable manual P 162 0.1322 155 -0.46 96
IV.MSFR.HHZ. 2020-09-04T14:43:12.78 0.3 undecidable manual P 17 0.2068 144 -0.61 90
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GALF.HHE. ML:2 0.000376 1.54 AML other m 2020-09-04T14:43:16.06
IV.GALF.HHN. ML:0 0.0003023821 0.2752 AML other m 2020-09-04T14:43:20.43
IV.MSFR.HHE. ML:1.1 3.7908295E-5 0.32 AML other m 2020-09-04T14:43:20.50
IV.MSFR.HHN. ML:1.1 4.747889E-5 0.3392 AML other m 2020-09-04T14:43:21.07
IV.CAGR.HHE. ML:1.9 0.00025165415 0.3776 AML other m 2020-09-04T14:43:25.35
IV.MUCR.HHE. ML:1.7 0.00012475805 0.5376 AML other m 2020-09-04T14:43:24.04
IV.MUCR.HHN. ML:1.7 0.000114308 0.2816 AML other m 2020-09-04T14:43:24.88
IV.CSLB.HHN. ML:1 2.4593415E-5 0.3392 AML other m 2020-09-04T14:43:24.50
IV.HLNI.HHE. ML:1.3 3.1789665E-5 0.1408 AML other m 2020-09-04T14:43:33.21
IV.HLNI.HHN. ML:1.4 3.7974485E-5 0.2176 AML other m 2020-09-04T14:43:30.05
IV.SSY.HHE. ML:2.1 0.00014505275 0.256 AML other m 2020-09-04T14:43:36.53
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