Earthquake with magnitude of ML 1.8 on date 02-12-2021 and time 03:06:28 (Italy) in region 4 km W Maniace (CT)

A magnitude ML 1.8 earthquake occured in region: 4 km W Maniace (CT), on

  • 02-12-2021 02:06:28 (UTC)
  • 02-12-2021 03:06:28 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.8710, 14.7620 at 17 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
Maniace CT 4 3765 3765
Cesarò ME 5 2439 6204
San Teodoro ME 6 1403 7607
Maletto CT 10 3920 11527
Bronte CT 11 19172 30699
Randazzo CT 16 10900 41599
Troina EN 17 9373 50972
Longi ME 18 1473 52445
Alcara li Fusi ME 18 1980 54425
Galati Mamertino ME 18 2627 57052
Santa Domenica Vittoria ME 18 980 58032
Floresta ME 18 485 58517
Tortorici ME 19 6435 64952

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km NW of Acireale (52622 inhabitants)
50 Km NW of Catania (314555 inhabitants)
75 Km NE of Caltanissetta (63360 inhabitants)
78 Km W of Messina (238439 inhabitants)
82 Km W of Reggio di Calabria (183035 inhabitants)
100 Km NE of Gela (75827 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000
ML 1.8 2021-12-02
02:06:28
37.8713 14.7622 17 2022-03-30
13:04:20
Bollettino Sismico Italiano INGV 98341781
Reviewed
Rev100
ML 1.9 2021-12-02
02:06:28
37.8707 14.7613 18 2021-12-02
04:14:54
Sala Sismica INGV-Roma 98034821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-02 02:06:28 ± 0.13
Latitude 37.8713 ± 0.0054
Longitude 14.7622 ± 0.0080
Depth (km) 17 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 98341781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 686
Semi-minor axis of confidence ellipse (meter) 412
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
Circular confidence region, given by single value of horizontal uncertainty (meter) 690.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 96
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.08813
Epicentral distance of station farthest from the epicenter (degree) 0.54049
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.1
Num. used stations 10
Type of magnitude ML
Reference to an origin 98341781
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-12-09 11:05:43

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 16
Type of magnitude ML
Reference to an origin 98034821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-02 02:32:10
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MPNC.HHZ. 2021-12-02T02:06:39.31 0.1 undecidable manual P 59 0.5405 98 -0.24 90
IV.MCPD.HHZ. 2021-12-02T02:06:39.38 0.6 undecidable manual S 354 0.2500 111 0.37 46
IV.GALF.HHZ. 2021-12-02T02:06:38.73 0.6 undecidable manual S 224 0.2230 114 0.45 46
IV.MSFR.HHZ. 2021-12-02T02:06:38.26 0.6 undecidable manual S 320 0.2113 116 0.3 47
IV.ESVO.HHZ. 2021-12-02T02:06:37.36 0.6 undecidable manual S 124 0.1754 122 0.31 47
IV.MUCR.HHZ. 2021-12-02T02:06:37.47 0.3 undecidable manual S 27 0.1925 119 -0.01 75
IV.EPOZ.HHZ. 2021-12-02T02:06:37.26 1.0 undecidable manual P 120 0.3912 102 0.22 23
IV.ECZM.HHZ. 2021-12-02T02:06:37.24 0.3 undecidable manual S 141 0.1790 122 0.1 74
IV.ESAL.HHZ. 2021-12-02T02:06:36.35 0.1 undecidable manual P 111 0.3157 105 0.57 86
IV.EFIU.HHE. 2021-12-02T02:06:36.84 1.0 undecidable manual P 103 0.3633 103 0.28 23
IV.ESCV.HHZ. 2021-12-02T02:06:36.08 0.3 undecidable manual S 161 0.1313 132 0.09 75
IV.ECBD.HHZ. 2021-12-02T02:06:35.28 0.1 undecidable manual P 109 0.2716 109 0.22 95
IV.EPZF.HHZ. 2021-12-02T02:06:35.14 0.3 undecidable manual S 122 0.0881 145 -0.02 77
IV.NOV.HHE. 2021-12-02T02:06:35.78 0.1 undecidable manual P 62 0.3336 104 -0.3 92
IV.ESML.HHZ. 2021-12-02T02:06:35.56 0.1 undecidable manual P 160 0.2698 109 0.54 89
IV.EMCN.HHZ. 2021-12-02T02:06:34.53 0.1 undecidable manual P 110 0.2284 114 0.16 97
IV.MSFR.HHZ. 2021-12-02T02:06:34.11 0.1 undecidable manual P 320 0.2113 116 0.01 100
IV.MCPD.HHZ. 2021-12-02T02:06:34.67 0.1 undecidable manual P 354 0.2500 111 -0.04 99
IV.ECHR.HNZ. 2021-12-02T02:06:34.27 0.6 undecidable manual P 147 0.2203 115 0.03 50
IV.EMNR.HHZ. 2021-12-02T02:06:34.28 0.1 undecidable manual P 105 0.2149 116 0.12 98
IV.ECTS.HHZ. 2021-12-02T02:06:34.95 0.1 undecidable manual P 88 0.2833 108 -0.3 93
IV.EPIT.HHZ. 2021-12-02T02:06:34.60 0.1 undecidable manual P 104 0.2401 112 0.05 99
IV.GALF.HHZ. 2021-12-02T02:06:34.05 0.1 undecidable manual P 224 0.2230 114 -0.23 95
IV.EMPL.HHZ. 2021-12-02T02:06:34.86 1.0 undecidable manual P 139 0.2527 111 0.1 24
IV.ECZM.HHZ. 2021-12-02T02:06:33.32 0.1 undecidable manual P 141 0.1790 122 -0.3 95
IV.ESVO.HHZ. 2021-12-02T02:06:33.61 0.3 undecidable manual P 124 0.1754 122 0.04 75
IV.MUCR.HHZ. 2021-12-02T02:06:33.70 0.1 undecidable manual P 27 0.1925 119 -0.12 98
IV.EPZF.HHZ. 2021-12-02T02:06:32.09 0.1 undecidable manual P 122 0.0881 145 -0.39 94
IV.ESCV.HHZ. 2021-12-02T02:06:32.10 0.1 undecidable manual P 161 0.1313 132 -0.86 79
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.EPZF.HHN. ML:2.7 0.004166256 1.6208 AML other m 2021-12-02T02:06:35.12
IV.ESCV.HHN. ML:2.3 0.0015435215 0.24 AML other m 2021-12-02T02:06:36.24
IV.EPZF.HHE. ML:2.6 0.003585 0.42 AML other m 2021-12-02T02:06:36.34
IV.MUCR.HHE. ML:1.9 0.0004165 0.42 AML other m 2021-12-02T02:06:37.51
IV.ESCV.HHE. ML:2.5 0.0021550000000000002 0.2 AML other m 2021-12-02T02:06:37.84
IV.MUCR.HHN. ML:1.8 0.000343 0.28 AML other m 2021-12-02T02:06:38.20
IV.MSFR.HHN. ML:1.2 0.00008911736 1.8592 AML other m 2021-12-02T02:06:38.97
IV.MSFR.HHE. ML:1.0 0.00005576147 0.2 AML other m 2021-12-02T02:06:39.20
IV.MCPD.HHE. ML:1.9 0.000402 0.4 AML other m 2021-12-02T02:06:39.88
IV.MCPD.HHN. ML:1.6 0.00020250000000000002 0.42 AML other m 2021-12-02T02:06:39.68
IV.GALF.HHN. ML:2.2 0.0008539999999999999 1.38 AML other m 2021-12-02T02:06:40.96
IV.ECTS.HHE. ML:1.9 0.000295 0.22 AML other m 2021-12-02T02:06:41.37
IV.ECTS.HHN. ML:1.8 0.00027100000000000003 1.08 AML other m 2021-12-02T02:06:41.85
IV.GALF.HHE. ML:2.4 0.001395 0.54 AML other m 2021-12-02T02:06:42.21
IV.ESML.HHE. ML:1.9 0.0003255 0.5 AML other m 2021-12-02T02:06:44.16
IV.ESML.HHN. ML:1.7 0.00022749999999999997 1.32 AML other m 2021-12-02T02:06:46.98
IV.HLNI.HHE. ML:0.0 0.0000734 0.64 AML other m 2021-12-02T02:06:49.42
IV.HLNI.HHN. ML:0.0 0.000058450000000000005 0.44 AML other m 2021-12-02T02:06:50.39
IV.MPNC.HHE. ML:1.9 0.000153 0.5 AML other m 2021-12-02T02:06:57.98
IV.MPNC.HHN. ML:1.8 0.0001225 0.68 AML other m 2021-12-02T02:06:58.21
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, http://terremoti.ingv.it/tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download