Earthquake with magnitude of ML 1.5 on date 16-12-2020 and time 17:07:39 (Italy) in region 7 km NW Pozzallo (RG)

A magnitude ML 1.5 earthquake occured in region: 7 km NW Pozzallo (RG), on

  • 16-12-2020 16:07:39 (UTC)
  • 16-12-2020 17:07:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 36.7890, 14.8200 at 27 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
Pozzallo RG 7 19552 19552
Ispica RG 8 16061 35613
Modica RG 9 54633 90246
Scicli RG 10 27077 117323
Rosolini SR 13 21427 138750
Ragusa RG 17 73313 212063

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km SE of Modica (54633 inhabitants)
17 Km SE of Ragusa (73313 inhabitants)
31 Km SE of Vittoria (63339 inhabitants)
52 Km SW of Siracusa (122291 inhabitants)
59 Km SE of Gela (75827 inhabitants)
83 Km S of Catania (314555 inhabitants)
97 Km SW 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
ML 1.5 2020-12-16
16:07:39
36.7892 14.8197 27 2021-02-26
14:56:15
Bollettino Sismico Italiano INGV 86241341
Reviewed
Rev100
ML 1.6 2020-12-16
16:07:39
36.7737 14.8067 27 2020-12-16
16:13:02
Sala Sismica INGV-Roma 85470731
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-12-16 16:07:39 ± 0.21
Latitude 36.7892 ± 0.0072
Longitude 14.8197 ± 0.0079
Depth (km) 27 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 86241341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 650
Semi-minor axis of confidence ellipse (meter) 540
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 31
Circular confidence region, given by single value of horizontal uncertainty (meter) 650.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 205
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.56657
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 85470731
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-12-16 16:13:02

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 86241341
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-01-23 18:24:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SPS2.HHZ. 2020-12-16T16:09:12.30 3.0 undecidable manual Sn 1.82 0
IV.LRP.EHZ. 2020-12-16T16:09:09.34 3.0 undecidable manual Pg 19.66 0
IV.RMP.HHZ. 2020-12-16T16:09:04.89 3.0 undecidable manual Pg 11.57 0
IV.MTMR.EHZ. 2020-12-16T16:08:49.06 3.0 undecidable manual Pg 9.42 0
OT.TAR1.HHZ. 2020-12-16T16:08:46.69 3.0 positive manual Pn 5.78 0
IV.MILZ.HHZ. 2020-12-16T16:08:38.62 3.0 undecidable manual Sn -1.38 0
IV.IACL.HHZ. 2020-12-16T16:08:08.10 3.0 undecidable manual Pn 1.5 0
IV.RAFF.HHZ. 2020-12-16T16:08:00.05 0.6 undecidable manual S 320 62.8926 108 0.34 44
IV.HLNI.HHZ. 2020-12-16T16:07:59.54 0.6 undecidable manual S 4 62.1933 108 -0.01 48
IV.HCRL.HHZ. 2020-12-16T16:07:58.66 0.6 undecidable manual S 19 57.9975 109 0.2 47
IV.SSY.HHZ. 2020-12-16T16:07:56.00 0.6 undecidable manual S 29 46.7199 114 0.33 47
IV.HVZN.HNZ. 2020-12-16T16:07:55.32 0.3 undecidable manual S 348 44.1225 116 0.26 70
IV.HAVL.HHZ. 2020-12-16T16:07:52.23 0.6 undecidable manual S 55 32.8449 124 -0.2 48
IV.RAFF.HHZ. 2020-12-16T16:07:51.55 0.1 undecidable manual P 320 62.8926 108 0.26 91
IV.HCRL.HHZ. 2020-12-16T16:07:50.48 0.3 undecidable manual P 19 57.9975 109 -0.09 71
IV.HLNI.HHZ. 2020-12-16T16:07:50.93 0.1 positive manual P 4 62.1933 108 -0.27 91
IV.HPAC.HHZ. 2020-12-16T16:07:50.56 0.3 undecidable manual S 115 21.2676 138 0.46 73
IV.SSY.HHZ. 2020-12-16T16:07:49.10 0.1 undecidable manual P 29 46.7199 114 0.14 97
IV.HMDC.HHZ. 2020-12-16T16:07:49.61 0.3 undecidable manual S 350 19.1697 141 -0.12 76
IV.HVZN.HNZ. 2020-12-16T16:07:48.19 0.3 undecidable manual P 348 44.1225 116 -0.41 69
IV.HAVL.HHZ. 2020-12-16T16:07:46.98 0.1 positive manual P 55 32.8449 124 -0.11 98
IV.HMDC.HHZ. 2020-12-16T16:07:45.34 0.1 negative manual P 350 19.1697 141 -0.19 100
IV.HPAC.HHZ. 2020-12-16T16:07:45.66 0.3 undecidable manual P 115 21.2676 138 -0.09 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HMDC.HHN. ML:1.3 0.00009570000000000001 0.46 AML other m 2020-12-16T16:07:49.61
IV.HMDC.HHE. ML:1.3 0.00008605 0.86 AML other m 2020-12-16T16:07:49.75
IV.HAVL.HHN. ML:1.4 0.000072630655 0.0768 AML other m 2020-12-16T16:07:52.79
IV.HAVL.HHE. ML:1.5 0.0001135 0.7 AML other m 2020-12-16T16:07:52.61
IV.SSY.HHE. ML:1.9 0.0001995 0.38 AML other m 2020-12-16T16:07:56.64
IV.SSY.HHN. ML:2.1 0.00028849999999999997 0.12 AML other m 2020-12-16T16:07:57.38
IV.HCRL.HHE. ML:1.6 0.00007835000000000001 1.28 AML other m 2020-12-16T16:07:58.98
IV.HCRL.HHN. ML:1.4 0.0000457 0.54 AML other m 2020-12-16T16:07:59.60
IV.HLNI.HHN. ML:1.2 0.000030189455 0.0768 AML other m 2020-12-16T16:08:00.43
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download