Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.9 on date 26-05-2021 and time 07:35:59 (Italy) in region 2 km SE Floresta (ME)

A magnitude ML 1.9 earthquake occured in region: 2 km SE Floresta (ME), on

  • 26-05-2021 05:35:59 (UTC)
  • 26-05-2021 07:35:59 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.9690, 14.9190 at 36 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
Floresta ME 2 485 485
Santa Domenica Vittoria ME 7 980 1465
Roccella Valdemone ME 9 666 2131
Ucria ME 9 1058 3189
Raccuja ME 10 1041 4230
San Piero Patti ME 10 2915 7145
Randazzo CT 10 10900 18045
Montalbano Elicona ME 11 2287 20332
Tortorici ME 11 6435 26767
Malvagna ME 13 733 27500
Moio Alcantara ME 14 717 28217
Sinagra ME 14 2705 30922
Galati Mamertino ME 15 2627 33549
Librizzi ME 15 1660 35209
Maniace CT 15 3765 38974
Longi ME 16 1473 40447
Maletto CT 16 3920 44367
Castell'Umberto ME 16 3128 47495
Basicò ME 16 612 48107
Sant'Angelo di Brolo ME 17 3090 51197
San Salvatore di Fitalia ME 17 1319 52516
Ficarra ME 18 1469 53985
Tripi ME 18 873 54858
Montagnareale ME 19 1615 56473
Frazzanò ME 19 711 57184
Novara di Sicilia ME 20 1337 58521
Mirto ME 20 974 59495
Patti ME 20 13431 72926
Alcara li Fusi ME 20 1980 74906

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km NW of Acireale (52622 inhabitants)
54 Km N of Catania (314555 inhabitants)
61 Km W of Messina (238439 inhabitants)
66 Km W of Reggio di Calabria (183035 inhabitants)
92 Km NE of Caltanissetta (63360 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 1.9 2021-05-26
05:35:59		 37.9688 14.9188 36 2021-12-29
11:12:03		 Bollettino Sismico Italiano INGV 90895701
Reviewed
Rev100 		ML 1.9 2021-05-26
05:35:59		 37.9935 14.9137 36 2021-05-26
06:53:34		 Sala Sismica INGV-Roma 90503871
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-26 05:35:59 ± 0.31
Latitude 37.9688 ± 0.0099
Longitude 14.9188 ± 0.0148
Depth (km) 36 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90895701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1310
Semi-minor axis of confidence ellipse (meter) 0
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 63
Circular confidence region, given by single value of horizontal uncertainty (meter) 1310.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 28
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.08184
Epicentral distance of station farthest from the epicenter (degree) 0.42988
Number of stations at which the event was observed 16
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 90503871
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-26 06:53:34

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 90895701
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-10-11 16:02:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.IVUG.HHZ. 2021-05-26T05:36:16.58 0.6 undecidable manual S 7 47.7189 123 -0.15 48
IV.MPNC.HHZ. 2021-05-26T05:36:15.83 0.6 undecidable manual S 62 42.7239 126 0.21 46
IV.MSFR.HHZ. 2021-05-26T05:36:13.46 0.6 undecidable manual S 284 29.4483 137 0.5 45
IV.ESPC.HHN. 2021-05-26T05:36:12.63 0.6 undecidable manual S 163 32.1456 135 -0.82 39
IV.AIO.HHZ. 2021-05-26T05:36:12.12 0.3 undecidable manual S 89 27.4503 139 -0.49 69
IV.EMCN.HHE. 2021-05-26T05:36:12.71 0.3 undecidable manual S 153 22.1556 146 0.98 56
IV.ECBD.HHE. 2021-05-26T05:36:12.82 0.3 undecidable manual S 145 25.5522 141 0.54 67
IV.EMNR.HHE. 2021-05-26T05:36:12.52 0.6 undecidable manual S 151 19.2696 149 1.19 34
IV.EPZF.HHE. 2021-05-26T05:36:11.15 0.3 undecidable manual S 199 16.9719 153 0.13 75
IV.MCPD.HHZ. 2021-05-26T05:36:11.56 0.3 undecidable manual S 316 23.4543 144 -0.38 70
IV.NOV.HHE. 2021-05-26T05:36:10.85 0.3 undecidable manual S 71 20.1687 148 -0.6 68
IV.IVPL.HHZ. 2021-05-26T05:36:10.16 0.3 undecidable manual P 7 45.5211 124 0.98 53
IV.IVUG.HHZ. 2021-05-26T05:36:10.40 0.3 undecidable manual P 7 47.7189 123 0.94 54
IV.MUCR.HHZ. 2021-05-26T05:36:10.20 0.3 undecidable manual S 335 9.0798 165 -0.05 77
IV.MPNC.HHZ. 2021-05-26T05:36:09.14 0.1 undecidable manual P 62 42.7239 126 0.31 91
IV.MSFR.HHZ. 2021-05-26T05:36:07.13 0.1 undecidable manual P 284 29.4483 137 -0.16 96
IV.ECZM.HHN. 2021-05-26T05:36:07.03 0.3 undecidable manual P 183 26.3514 141 0.05 75
IV.ECBD.HHE. 2021-05-26T05:36:06.99 0.3 undecidable manual P 145 25.5522 141 0.09 74
IV.ESVO.HHE. 2021-05-26T05:36:06.70 0.1 undecidable manual P 174 21.867 146 0.14 99
IV.MCPD.HHZ. 2021-05-26T05:36:06.48 0.1 undecidable manual P 316 23.4543 144 -0.22 97
IV.NOV.HHE. 2021-05-26T05:36:06.14 0.1 undecidable manual P 71 20.1687 148 -0.27 97
IV.EPZF.HHE. 2021-05-26T05:36:06.02 0.3 undecidable manual P 199 16.9719 153 -0.15 74
IV.EMCN.HHE. 2021-05-26T05:36:06.58 0.3 undecidable manual P 153 22.1556 146 0 76
IV.EMNR.HHE. 2021-05-26T05:36:06.35 0.3 undecidable manual P 151 19.2696 149 0 76
IV.ESPC.HHN. 2021-05-26T05:36:06.93 0.1 undecidable manual P 163 32.1456 135 -0.64 83
IV.EMSG.HHE. 2021-05-26T05:36:06.07 0.1 undecidable manual P 171 16.6722 153 -0.08 100
IV.AIO.HHZ. 2021-05-26T05:36:06.91 0.1 undecidable manual P 89 27.4503 139 -0.17 97
IV.MUCR.HHZ. 2021-05-26T05:36:05.34 0.1 undecidable manual P 335 9.0798 165 -0.39 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MUCR.HHN. ML:2.5 0.001355 0.32 AML other m 2021-05-26T05:36:10.73
IV.MUCR.HHE. ML:1.9 0.00033899999999999995 1.16 AML other m 2021-05-26T05:36:11.81
IV.AIO.HHE. ML:1.8 0.0001975 0.28 AML other m 2021-05-26T05:36:12.35
IV.MCPD.HHN. ML:1.6 0.0001295 0.86 AML other m 2021-05-26T05:36:12.75
IV.MCPD.HHE. ML:1.6 0.000132 0.36 AML other m 2021-05-26T05:36:12.96
IV.AIO.HHN. ML:1.9 0.00023150000000000002 1.44 AML other m 2021-05-26T05:36:14.98
IV.MPNC.HHE. ML:2.0 0.00020500000000000002 0.4 AML other m 2021-05-26T05:36:18.69
IV.MPNC.HHN. ML:2.0 0.000228 0.62 AML other m 2021-05-26T05:36:20.06
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download