Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.8 on date 16-02-2021 and time 10:10:26 (UTC) in region 6 km E San Mauro Castelverde (PA)

A magnitude ML 2.8 earthquake occured in region: 6 km E San Mauro Castelverde (PA), on

  • 16-02-2021 10:10:26 (UTC)
  • 16-02-2021 11:10:26 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.9230, 14.2560 at 28 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
San Mauro Castelverde PA 6 1701 1701
Pettineo ME 6 1350 3051
Castel di Lucio ME 6 1294 4345
Tusa ME 7 2925 7270
Motta d'Affermo ME 8 739 8009
Mistretta ME 9 4791 12800
Reitano ME 10 806 13606
Geraci Siculo PA 11 1945 15551
Pollina PA 13 2974 18525
Santo Stefano di Camastra ME 13 4694 23219
Gangi PA 15 6811 30030
Castelbuono PA 15 8943 38973
Petralia Soprana PA 19 3360 42333
Petralia Sottana PA 19 2821 45154
Sperlinga EN 20 805 45959
Caronia ME 20 3364 49323

Municipalities with at least 50000 inhabitants

An earthquake occurred to
51 Km NE of Caltanissetta (63360 inhabitants)
68 Km E of Bagheria (55387 inhabitants)
81 Km E of Palermo (674435 inhabitants)
87 Km NW of Catania (314555 inhabitants)
87 Km W of Acireale (52622 inhabitants)
90 Km NE of Agrigento (59770 inhabitants)
95 Km N 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 2.8 2021-02-16
10:10:26		 37.9233 14.2565 28 2021-07-12
16:55:00		 Bollettino Sismico Italiano INGV 87597361
Reviewed
Rev100 		ML 2.9 2021-02-16
10:10:25		 37.9195 14.2305 32 2021-02-16
10:24:49		 Sala Sismica INGV-Roma 87207881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-16 10:10:26 ± 0.09
Latitude 37.9233 ± 0.0072
Longitude 14.2565 ± 0.0068
Depth (km) 28 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 87597361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 713
Semi-minor axis of confidence ellipse (meter) 386
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 190
Circular confidence region, given by single value of horizontal uncertainty (meter) 710.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 62
Number of defining phases 62
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.44
Epicentral distance of station closest to the epicenter (degree) 0.11331
Epicentral distance of station farthest from the epicenter (degree) 1.44971
Number of stations at which the event was observed 49
Number of stations from which data was used for origin computation 49
Magnitudes information

ML:2.9

Field Value
Value 2.9
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 87207881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-16 10:24:49

ML:2.8

Field Value
Value 2.8
Uncertainty 0.3
Num. used stations 34
Type of magnitude ML
Reference to an origin 87597361
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-19 10:49:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.HAVL.HHZ. 2021-02-16T10:11:04.04 0.6 undecidable manual S 144 131.2686 54 0.63 35
IV.HSRS.HNN. 2021-02-16T10:11:02.16 0.3 undecidable manual S 137 125.2746 54 0.04 62
IV.HVZN.HHZ. 2021-02-16T10:10:55.03 0.6 undecidable manual S 154 91.9413 102 1.36 26
IV.HCRL.HHN. 2021-02-16T10:10:55.68 0.6 undecidable manual S 136 98.4237 101 0.31 41
IV.SOI.EHZ. 2021-02-16T10:10:51.60 0.3 undecidable manual P 83 158.0196 54 0.58 50
IV.JOPP.HNN. 2021-02-16T10:10:50.57 0.3 undecidable manual P 61 160.9167 54 -0.8 44
IV.MARS.EHE. 2021-02-16T10:10:50.43 0.3 undecidable manual P 263 149.4393 54 0.49 53
IV.ERC.EHN. 2021-02-16T10:10:49.91 0.3 undecidable manual P 275 146.5422 54 0.33 56
IV.SICLA.EHN. 2021-02-16T10:10:49.47 0.3 undecidable manual P 73 132.5673 54 1.62 32
MN.CEL.HHZ. 2021-02-16T10:10:49.77 0.3 undecidable manual P 75 147.741 54 0.03 59
IV.SOLUN.HHZ. 2021-02-16T10:10:47.61 0.6 undecidable manual S 287 65.9895 107 0.67 39
IV.HAVL.HHZ. 2021-02-16T10:10:46.94 0.1 undecidable manual P 144 131.2686 54 -0.75 66
IV.HSRS.HNN. 2021-02-16T10:10:46.09 0.3 undecidable manual P 137 125.2746 54 -0.86 48
IV.CROCE.HHE. 2021-02-16T10:10:46.01 0.3 undecidable manual P 168 123.4875 54 -0.7 51
IV.CRJA.HHN. 2021-02-16T10:10:46.15 0.3 undecidable manual P 263 110.5005 100 1.28 41
IV.HMDC.HNN. 2021-02-16T10:10:45.17 0.3 undecidable manual P 156 116.5944 99 -0.63 54
MN.CLTB.HHN. 2021-02-16T10:10:45.54 0.6 undecidable manual P 248 98.9232 101 2.41 11
IV.USI.HHZ. 2021-02-16T10:10:45.72 0.3 undecidable manual P 313 127.9719 54 -1.55 32
IV.MSRU.HHE. 2021-02-16T10:10:45.86 0.3 undecidable manual P 71 115.5954 99 0.2 61
IV.SCIAC.HHN. 2021-02-16T10:10:45.18 0.6 undecidable manual P 246 110.9001 99 0.25 40
IV.MBFT.HHN. 2021-02-16T10:10:44.72 0.6 undecidable manual P 272 113.997 99 -0.69 35
IV.MUCR.HHZ. 2021-02-16T10:10:44.53 0.6 undecidable manual S 76 55.5999 110 0.22 45
IV.MPNC.HHZ. 2021-02-16T10:10:43.23 0.3 undecidable manual P 75 98.9232 101 0.11 64
IV.HAGA.HHZ. 2021-02-16T10:10:43.43 0.3 undecidable manual P 132 106.116 100 -0.77 52
IV.ACATE.HNE. 2021-02-16T10:10:43.09 0.3 undecidable manual P 168 102.0201 100 -0.5 59
IV.EPOZ.HHZ. 2021-02-16T10:10:42.01 0.6 undecidable manual P 109 86.3469 103 0.8 36
IV.MILZ.HHN. 2021-02-16T10:10:42.41 0.6 undecidable manual P 65 93.4398 101 0.12 43
IT.LNT.HGZ. 2021-02-16T10:10:42.26 0.3 undecidable manual P 137 96.2259 101 -0.44 60
IV.HCRL.HHN. 2021-02-16T10:10:42.29 0.3 undecidable manual P 136 98.4237 101 -0.76 53
IV.AIO.HHZ. 2021-02-16T10:10:41.19 0.1 positive manual P 86 85.5477 103 0.09 88
IV.HVZN.HHZ. 2021-02-16T10:10:41.50 0.1 undecidable manual P 154 91.9413 102 -0.57 78
IV.CORL.HHZ. 2021-02-16T10:10:41.21 0.3 undecidable manual P 268 83.4498 103 0.43 62
IV.RAFF.HHZ. 2021-02-16T10:10:40.16 0.1 undecidable manual P 173 78.2661 104 0.15 88
IV.ECTS.HHZ. 2021-02-16T10:10:40.10 0.3 undecidable manual P 93 75.7686 104 0.46 62
IV.HLNI.HHZ. 2021-02-16T10:10:40.15 0.3 undecidable manual P 140 83.6496 103 -0.66 57
IV.RESU.HHZ. 2021-02-16T10:10:40.37 0.6 undecidable manual S 210 35.3424 122 0.94 36
IV.MPG.HHE. 2021-02-16T10:10:40.88 0.3 undecidable manual P 289 82.6506 103 0.22 65
IV.ILOS.HHN. 2021-02-16T10:10:40.86 0.3 undecidable manual P 46 83.6496 103 0.05 67
IV.IVGP.HHN. 2021-02-16T10:10:40.52 0.3 undecidable manual P 49 80.8635 103 0.13 66
IV.GALF.HHZ. 2021-02-16T10:10:39.62 0.6 undecidable manual S 131 35.9418 122 0.04 48
IV.IVPL.HNE. 2021-02-16T10:10:39.56 0.6 undecidable manual P 51 80.6637 103 -0.81 36
IV.MSFR.HHZ. 2021-02-16T10:10:39.37 0.6 undecidable manual S 67 31.746 126 0.72 40
IV.NOV.HHZ. 2021-02-16T10:10:39.92 0.1 positive manual P 81 77.8665 104 -0.02 90
IV.IFIL.HHZ. 2021-02-16T10:10:39.24 0.3 undecidable manual P 21 76.368 104 -0.48 62
IV.SOLUN.HHZ. 2021-02-16T10:10:38.42 0.1 positive manual P 287 65.9895 107 0.24 89
IV.MCT.HHN. 2021-02-16T10:10:38.81 1.0 undecidable manual P 239 66.1893 107 0.6 20
IV.CPTP.HHZ. 2021-02-16T10:10:37.55 0.3 undecidable manual P 188 57.7977 110 0.57 62
IV.EPZF.HHZ. 2021-02-16T10:10:37.40 0.3 undecidable manual P 102 53.7018 111 1 52
IV.ESCV.HHZ. 2021-02-16T10:10:37.35 0.3 undecidable manual P 112 52.7028 112 1.1 49
IV.MUCR.HHZ. 2021-02-16T10:10:36.53 0.1 undecidable manual P 76 55.5999 110 -0.13 92
IV.GIB.HHZ. 2021-02-16T10:10:36.88 0.6 undecidable manual S 290 21.4674 138 0.29 47
IV.PETRA.HHZ. 2021-02-16T10:10:35.17 0.6 undecidable manual S 231 15.873 147 -0.51 46
IV.CAGR.HHZ. 2021-02-16T10:10:35.20 0.3 undecidable manual P 147 39.627 119 0.77 58
IV.CSLB.HHZ. 2021-02-16T10:10:35.47 0.6 undecidable manual S 275 17.4714 144 -0.44 47
IV.PLLN.EHZ. 2021-02-16T10:10:35.26 0.6 undecidable manual S 308 12.5763 153 0.04 50
IV.RESU.HHZ. 2021-02-16T10:10:33.56 0.1 positive manual P 210 35.3424 122 -0.29 93
IV.MSFR.HHZ. 2021-02-16T10:10:33.20 0.1 positive manual P 67 31.746 126 -0.19 95
IV.GALF.HHZ. 2021-02-16T10:10:33.80 0.1 undecidable manual P 131 35.9418 122 -0.13 96
IV.GIB.HHZ. 2021-02-16T10:10:32.15 0.1 negative manual P 290 21.4674 138 -0.06 100
IV.PETRA.HHZ. 2021-02-16T10:10:31.06 0.1 negative manual P 231 15.873 147 -0.62 88
IV.CSLB.HHZ. 2021-02-16T10:10:31.31 0.1 negative manual P 275 17.4714 144 -0.5 92
IV.PLLN.EHZ. 2021-02-16T10:10:31.29 0.1 negative manual P 308 12.5763 153 -0.13 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PETRA.HHE. ML:2.9 0.0037055835000000003 0.5952 AML other m 2021-02-16T10:10:35.60
IV.CSLB.HHE. ML:2.4 0.0011780879 0.8576 AML other m 2021-02-16T10:10:36.17
IV.CSLB.HHN. ML:2.3 0.0009478496 0.9984 AML other m 2021-02-16T10:10:36.15
IV.PLLN.EHN. ML:3.2 0.0086028005 0.5056 AML other m 2021-02-16T10:10:36.16
IV.PETRA.HHN. ML:2.8 0.0027008315 0.704 AML other m 2021-02-16T10:10:35.85
IV.PLLN.EHE. ML:3.2 0.008352347 0.8768 AML other m 2021-02-16T10:10:36.56
IV.GIB.HHN. ML:3.2 0.0060265845 0.3584 AML other m 2021-02-16T10:10:37.87
IV.GIB.HHE. ML:2.9 0.0033230975000000003 1.2224 AML other m 2021-02-16T10:10:38.36
IV.MSFR.HHE. ML:2.0 0.00037386545 0.256 AML other m 2021-02-16T10:10:39.54
IV.MSFR.HHN. ML:2.3 0.0006843423 1.2992 AML other m 2021-02-16T10:10:39.69
IV.GALF.HHN. ML:3.2 0.004782016000000001 0.8 AML other m 2021-02-16T10:10:40.59
IV.GALF.HNN. ML:2.3 0.0006359844000000001 0.8 AML other m 2021-02-16T10:10:40.60
IV.RESU.HHN. ML:2.4 0.0007925434500000001 1.4016 AML other m 2021-02-16T10:10:41.46
IV.GALF.HHE. ML:3.0 0.0033404805 0.48 AML other m 2021-02-16T10:10:40.83
IV.GALF.HNE. ML:2.0 0.00029300135 0.3072 AML other m 2021-02-16T10:10:40.84
IV.RESU.HHE. ML:2.4 0.00088384335 0.3584 AML other m 2021-02-16T10:10:41.25
IV.MUCR.HHE. ML:2.5 0.0006534566 0.8768 AML other m 2021-02-16T10:10:44.86
IV.SOLUN.HHN. ML:2.6 0.0006535 1.32 AML other m 2021-02-16T10:10:48.93
IV.SOLUN.HHE. ML:2.5 0.0005623009 0.6016 AML other m 2021-02-16T10:10:48.43
IV.IFIL.HHE. ML:3.2 0.0019772425 0.4416 AML other m 2021-02-16T10:10:49.69
IV.HLNI.HHE. ML:2.3 0.0002239913 0.6208 AML other m 2021-02-16T10:10:52.37
IV.IFIL.HHN. ML:3.1 0.001655 0.36 AML other m 2021-02-16T10:10:52.64
IV.RAFF.HHE. ML:2.5 0.00042600000000000005 1.64 AML other m 2021-02-16T10:10:54.94
IV.HVZN.HNN. ML:3.0 0.0010443984500000001 0.7232 AML other m 2021-02-16T10:10:55.46
IV.HVZN.HHN. ML:3.0 0.0010367826 0.7168 AML other m 2021-02-16T10:10:55.46
IV.RAFF.HHN. ML:2.5 0.00039049224999999996 0.7168 AML other m 2021-02-16T10:10:55.49
IV.HVZN.HNE. ML:3.1 0.0013168375000000001 0.4672 AML other m 2021-02-16T10:10:56.45
IV.HVZN.HHE. ML:3.1 0.0012955179999999998 0.4416 AML other m 2021-02-16T10:10:56.44
IV.NOV.HHE. ML:3.4 0.0031029394999999996 0.4224 AML other m 2021-02-16T10:10:56.86
IV.AIO.HHN. ML:2.6 0.0004752305 0.4992 AML other m 2021-02-16T10:10:56.95
IV.HAGA.HHN. ML:2.8 0.000503 0.8 AML other m 2021-02-16T10:10:58.36
IV.HAGA.HHE. ML:3.0 0.0009505000000000001 0.78 AML other m 2021-02-16T10:10:58.10
IV.HAVL.HHE. ML:3.0 0.0005841013000000001 0.2816 AML other m 2021-02-16T10:11:04.95
IV.HAVL.HHN. ML:3.0 0.0005833043 0.3008 AML other m 2021-02-16T10:11:05.02
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, /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
Waveforms Seismic signals in miniseed + resp format Download