Earthquake with magnitude of ML 2.7 on date 31-01-2021 and time 21:30:31 (Italy) in region 7 km W Castel di Lucio (ME)

A magnitude ML 2.7 earthquake occured in region: 7 km W Castel di Lucio (ME), on

  • 31-01-2021 20:30:31 (UTC)
  • 31-01-2021 21:30:31 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 37.864, 14.24 at 6 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
Castel di Lucio ME 7 1294 1294
San Mauro Castelverde PA 7 1701 2995
Geraci Siculo PA 7 1945 4940
Gangi PA 8 6811 11751
Pettineo ME 12 1350 13101
Mistretta ME 13 4791 17892
Tusa ME 14 2925 20817
Petralia Soprana PA 14 3360 24177
Motta d'Affermo ME 14 739 24916
Petralia Sottana PA 14 2821 27737
Sperlinga EN 15 805 28542
Reitano ME 15 806 29348
Castelbuono PA 15 8943 38291
Pollina PA 17 2974 41265
Bompietro PA 18 1401 42666
Blufi PA 19 1029 43695
Nicosia EN 19 13899 57594
Castellana Sicula PA 19 3411 61005
Santo Stefano di Camastra ME 20 4694 65699

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km NE of Caltanissetta (63360 inhabitants)
68 Km E of Bagheria (55387 inhabitants)
82 Km E of Palermo (674435 inhabitants)
84 Km NE of Agrigento (59770 inhabitants)
85 Km NW of Catania (314555 inhabitants)
86 Km W of Acireale (52622 inhabitants)
89 Km N of Gela (75827 inhabitants)
Recent and historical seismicity

These maps show the seismicity for different time windows. The earthquake locations reported in these maps are determined in quasi real-time by the personnel on duty in the seismic surveillance center of INGV in Rome. Note that the earthquake source parameters (hypocentral location and magnitude) are the best estimates obstained with the available data and they are adjourned as additional data become available. The source parameters obtained by the personnel on duty are then revised by the group in charge of the INGV Seismic Bulletin (Bollettino Sismico Italiano dell’INGV).

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event *

This map reports the earthquake epicenters located in the 72 hours (3 days) preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radius of the circle representing the earthquake on the map scales with magnitude. The color depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours). The open star shows the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event *

This map reports the Magnitudo ≥ 1.0 earthquake epicenters located in the 90 days preceding the time of the current earthquake occurrence, using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows 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 reports the Magnitudo ≥ 2.5 earthquake epicenters located using the data acquired by the Italian National Seismic Network and by other collaborating networks in Italy and in the neighbouring countries. The radii of the circles representing the epicenters on the map scale with magnitude. The color of each circle depends on the time of occurrence of the earthquakes with respect to the time of generation of the map (red = 1 hour; orange = 24 hours; yellow = 72 hours; blue = all other earthquakes). The open star shows 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 https://emidius.mi.ingv.it/CPTI15-DBMI15/) with estimated magnitude ≥ 5.0 since 1000 AD until 2014. The epicenters are represented by squares which sides scale with the estimated earthquake magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The open star shows the epicenter of the current earthquake.
Seismic hazard
Shakemap
Felt maps
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web 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
Bulletin
Rev1000
ML 2.7 2021-01-31
20:30:31
37.8643 14.2395 6 2021-07-12
16:55:03
Bollettino Sismico Italiano INGV 88425911
Reviewed
Rev100
ML 2.7 2021-01-31
20:30:31
37.8562 14.2233 8 2021-01-31
20:43:55
Sala Sismica INGV-Roma 86743571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-31 20:30:31 ± 0.12
Latitude 37.8643 ± 0.0027
Longitude 14.2395 ± 0.0046
Depth (km) 6 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 88425911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 350
Semi-minor axis of confidence ellipse (meter) 270
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 21
Circular confidence region, given by single value of horizontal uncertainty (meter) 350
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 52
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.10342
Epicentral distance of station farthest from the epicenter (degree) 1.31751
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:2.7

Field Value
Value 2.7
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 88425911
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-29 14:45:24

ML:2.7

Field Value
Value 2.7
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 86743571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-31 20:43:54
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HPAC.HHZ. 2021-01-31T20:30:56.32 0.3 undecidable manual P 151 1.3175 50 -0.21 0
IV.MTGR.HHZ. 2021-01-31T20:30:55.38 0.3 undecidable manual P 272 1.1682 50 1.41 0
IV.HAVL.HHZ. 2021-01-31T20:30:53.35 0.3 undecidable manual P 142 1.1439 50 -0.2 0
IV.MBFT.HHZ. 2021-01-31T20:30:52.20 0.6 undecidable manual P 275 1.0171 50 0.81 0
IV.MUCR.HHZ. 2021-01-31T20:30:51.12 1.0 undecidable manual S 70 0.5306 50 -0.16 0
IV.CRJA.HHZ. 2021-01-31T20:30:51.93 0.3 undecidable manual P 267 0.9767 50 1.23 0
IV.SCIAC.HHZ. 2021-01-31T20:30:51.89 0.3 undecidable manual P 249 0.9641 50 1.4 0
IV.SSY.HHZ. 2021-01-31T20:30:50.74 0.6 undecidable manual P 137 0.9677 50 0.2 0
IV.HCRL.HHZ. 2021-01-31T20:30:48.67 0.6 undecidable manual P 133 0.8553 50 0.05 0
IV.AIO.HHZ. 2021-01-31T20:30:47.82 0.6 undecidable manual P 82 0.7905 50 0.31 0
IV.IFIL.HHZ. 2021-01-31T20:30:47.07 0.6 undecidable manual P 21 0.7473 50 0.29 0
IV.HLNI.HHZ. 2021-01-31T20:30:46.16 0.6 undecidable manual P 136 0.7186 50 -0.13 0
IV.NOV.HHZ. 2021-01-31T20:30:46.00 0.6 undecidable manual P 77 0.7258 50 -0.41 0
IV.RAFF.HHZ. 2021-01-31T20:30:45.40 0.3 undecidable manual P 171 0.6484 50 0.31 0
IV.MSFR.HHZ. 2021-01-31T20:30:44.83 0.6 undecidable manual S 58 0.3256 99 0.3 42
IV.EPZF.HHZ. 2021-01-31T20:30:43.06 0.3 undecidable manual P 95 0.4892 50 0.71 5
IV.SOLUN.HHZ. 2021-01-31T20:30:43.73 0.1 undecidable manual P 292 0.6016 50 -0.55 0
IV.GALF.HHZ. 2021-01-31T20:30:42.95 1.0 undecidable manual S 121 0.3004 99 -0.64 21
IV.RESU.HHZ. 2021-01-31T20:30:42.79 0.6 undecidable manual S 214 0.2608 101 0.7 42
IV.MUCR.HHZ. 2021-01-31T20:30:42.53 0.1 undecidable manual P 70 0.5306 50 -0.54 0
IV.GIB.HHZ. 2021-01-31T20:30:40.43 0.6 undecidable manual S 307 0.2104 103 0.25 48
IV.MSFR.HHZ. 2021-01-31T20:30:39.00 0.1 undecidable manual P 58 0.3256 99 -0.17 87
IV.CAGR.HHZ. 2021-01-31T20:30:39.31 0.3 undecidable manual P 140 0.3175 99 0.3 65
IV.CSLB.HHZ. 2021-01-31T20:30:38.27 0.3 undecidable manual S 297 0.161 107 -0.07 74
IV.GALF.HHZ. 2021-01-31T20:30:38.52 0.3 undecidable manual P 121 0.3004 99 -0.11 71
IV.PLLN.EHZ. 2021-01-31T20:30:38.18 0.3 undecidable manual S 329 0.1493 108 0.27 71
IV.RESU.HHZ. 2021-01-31T20:30:37.76 0.1 undecidable manual P 214 0.2608 101 -0.01 100
IV.GIB.HHZ. 2021-01-31T20:30:36.38 0.1 undecidable manual P 307 0.2104 103 -0.28 95
IV.PETRA.HHZ. 2021-01-31T20:30:36.22 0.3 undecidable manual S 253 0.1034 116 -0.05 74
IV.CSLB.HHZ. 2021-01-31T20:30:35.31 0.1 positive manual P 297 0.161 107 -0.29 94
IV.PLLN.EHZ. 2021-01-31T20:30:35.62 0.1 positive manual P 329 0.1493 108 0.26 95
IV.PETRA.HHZ. 2021-01-31T20:30:34.15 0.1 positive manual P 253 0.1034 116 -0.26 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PETRA.HHN. ML:2.8 0.01046 0.82 AML other m 2021-01-31T20:30:37.27
IV.PLLN.EHE. ML:2.8 0.00718 0.5 AML other m 2021-01-31T20:30:39.38
IV.PETRA.HHE. ML:2.9 0.010585 1.24 AML other m 2021-01-31T20:30:39.10
IV.PLLN.EHN. ML:3 0.010505 0.44 AML other m 2021-01-31T20:30:41.14
IV.CSLB.HHE. ML:2.4 0.00247 1.46 AML other m 2021-01-31T20:30:42.83
IV.CSLB.HHN. ML:2.5 0.00291 0.48 AML other m 2021-01-31T20:30:42.54
IV.GIB.HHE. ML:2.7 0.00357 0.32 AML other m 2021-01-31T20:30:43.00
IV.MSFR.HHN. ML:2.2 0.0007065 0.44 AML other m 2021-01-31T20:30:45.69
IV.MSFR.HHE. ML:2.3 0.0007475 0.82 AML other m 2021-01-31T20:30:46.10
IV.GIB.HHN. ML:2.8 0.0048 0.42 AML other m 2021-01-31T20:30:46.66
IV.RESU.HHN. ML:3 0.005705 0.5 AML other m 2021-01-31T20:30:48.10
IV.GALF.HHE. ML:3.1 0.005905 1.48 AML other m 2021-01-31T20:30:48.11
IV.GALF.HNN. ML:2.2 0.000768 0.66 AML other m 2021-01-31T20:30:51.62
IV.RESU.HHE. ML:2.8 0.002985 0.48 AML other m 2021-01-31T20:30:51.05
IV.GALF.HNE. ML:2.2 0.0006815 0.48 AML other m 2021-01-31T20:30:52.47
IV.CAGR.HHN. ML:2.9 0.00315 0.66 AML other m 2021-01-31T20:30:54.19
IV.GALF.HHN. ML:3.1 0.005975 0.58 AML other m 2021-01-31T20:30:54.29
IV.MUCR.HHE. ML:2.7 0.0010115 0.42 AML other m 2021-01-31T20:30:55.75
IV.CAGR.HHE. ML:2.8 0.002455 1.28 AML other m 2021-01-31T20:30:57.18
IV.EPZF.HHN. ML:2.8 0.00161 0.6 AML other m 2021-01-31T20:30:58.32
IV.SOLUN.HHE. ML:2.7 0.000954 0.54 AML other m 2021-01-31T20:31:00.45
IV.MUCR.HHN. ML:2.6 0.0009005 0.44 AML other m 2021-01-31T20:31:00.46
IV.HLNI.HHE. ML:2.2 0.000231 0.66 AML other m 2021-01-31T20:31:00.94
IV.IFIL.HHE. ML:3.4 0.00372 1.34 AML other m 2021-01-31T20:31:02.68
IV.EPZF.HHE. ML:2.8 0.00135 0.9 AML other m 2021-01-31T20:31:02.96
IV.CPTP.HHE. ML:0 0.00128 0.82 AML other m 2021-01-31T20:31:03.42
IV.RAFF.HHE. ML:2.3 0.0003245 0.46 AML other m 2021-01-31T20:31:03.94
IV.HLNI.HHN. ML:2.2 0.0002465 0.4 AML other m 2021-01-31T20:31:04.42
IV.CPTP.HHN. ML:0 0.001705 1.08 AML other m 2021-01-31T20:31:04.85
IV.IFIL.HHN. ML:3 0.001455 1.36 AML other m 2021-01-31T20:31:05.94
IV.SOLUN.HHN. ML:2.6 0.00065 0.4 AML other m 2021-01-31T20:31:05.70
IV.RAFF.HHN. ML:2.3 0.0003315 0.82 AML other m 2021-01-31T20:31:06.50
IV.HCRL.HHE. ML:2.5 0.0003145 0.42 AML other m 2021-01-31T20:31:07.64
IV.NOV.HHN. ML:3 0.00145 0.5 AML other m 2021-01-31T20:31:07.64
IV.AIO.HHN. ML:2.6 0.0005455 1.14 AML other m 2021-01-31T20:31:08.32
IV.AIO.HHE. ML:2.6 0.0005325 1.26 AML other m 2021-01-31T20:31:08.98
IV.SSY.HHE. ML:3.2 0.001565 0.94 AML other m 2021-01-31T20:31:09.39
IV.NOV.HHE. ML:2.9 0.0011935 0.74 AML other m 2021-01-31T20:31:12.28
IV.SCIAC.HHE. ML:2.5 0.0002615 0.74 AML other m 2021-01-31T20:31:12.98
IV.HAVL.HHE. ML:2.9 0.000583 1.28 AML other m 2021-01-31T20:31:14.12
IV.SSY.HHN. ML:3.4 0.002165 0.3 AML other m 2021-01-31T20:31:14.58
IV.SCIAC.HHN. ML:2.5 0.0002925 0.74 AML other m 2021-01-31T20:31:15.46
IV.HCRL.HHN. ML:2.4 0.0002505 0.88 AML other m 2021-01-31T20:31:16.47
IV.MBFT.HHN. ML:2.4 0.000228 0.42 AML other m 2021-01-31T20:31:16.50
IV.HAVL.HHN. ML:2.9 0.0005835 1.26 AML other m 2021-01-31T20:31:18.80
IV.HPAC.HHE. ML:3 0.0005035 0.42 AML other m 2021-01-31T20:31:19.01
IV.MBFT.HHE. ML:2.4 0.000222 1.04 AML other m 2021-01-31T20:31:20.79
IV.HPAC.HHN. ML:3 0.000556 0.98 AML other m 2021-01-31T20:31:22.74
IV.CRJA.HHN. ML:2.8 0.000625 1.58 AML other m 2021-01-31T20:31:22.79
IV.CRJA.HHE. ML:2.8 0.000618 0.88 AML other m 2021-01-31T20:31:23.24
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions *

This map reports the focal mechanisms since 1977 in the region. The white and red beach ball symbols are mechanisms determined using the Regional Centroid Moment Tensor (RCMT, http://www.bo.ingv.it/RCMT) and are determined for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when there is a good source-receiver geometry of the target earthquake, the RCMT can be obtained also for earthquakes with magnitude larger than 4.0. The blue and white beach ball symbols indicate the mechanisms obtained from application of the Time Domain Moment Tensor (TDMT, http://terremoti.ingv.it/tdmt.html). This technique is used for M ≥ 3.5. The size of the beach ball sysmbol 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