A magnitude ML 2.1 earthquake occured in region: 2 km E Sant'Alfio (CT), on
and geographic coordinates (lat, lon) 37.7500, 15.1680 at 10 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.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Sant'Alfio | CT | 2 | 1582 | 1582 |
Giarre | CT | 3 | 27659 | 29241 |
Mascali | CT | 3 | 14282 | 43523 |
Riposto | CT | 4 | 14838 | 58361 |
Milo | CT | 5 | 1087 | 59448 |
Fiumefreddo di Sicilia | CT | 6 | 9623 | 69071 |
Piedimonte Etneo | CT | 7 | 3963 | 73034 |
Santa Venerina | CT | 7 | 8592 | 81626 |
Zafferana Etnea | CT | 8 | 9517 | 91143 |
Calatabiano | CT | 10 | 5308 | 96451 |
Linguaglossa | CT | 10 | 5403 | 101854 |
Gaggi | ME | 13 | 3184 | 105038 |
Giardini-Naxos | ME | 14 | 9415 | 114453 |
Taormina | ME | 15 | 10960 | 125413 |
Acireale | CT | 15 | 52622 | 178035 |
Castiglione di Sicilia | CT | 15 | 3215 | 181250 |
Castelmola | ME | 16 | 1088 | 182338 |
Aci Sant'Antonio | CT | 16 | 17984 | 200322 |
Motta Camastra | ME | 16 | 845 | 201167 |
Aci Catena | CT | 16 | 29851 | 231018 |
Viagrande | CT | 17 | 8563 | 239581 |
Trecastagni | CT | 17 | 10910 | 250491 |
Graniti | ME | 17 | 1492 | 251983 |
Francavilla di Sicilia | ME | 17 | 3945 | 255928 |
Pedara | CT | 17 | 14102 | 270030 |
Aci Bonaccorsi | CT | 18 | 3524 | 273554 |
Letojanni | ME | 19 | 2861 | 276415 |
Valverde | CT | 19 | 7840 | 284255 |
Nicolosi | CT | 19 | 7463 | 291718 |
Moio Alcantara | ME | 20 | 717 | 292435 |
Mongiuffi Melia | ME | 20 | 600 | 293035 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 2.1 | 2021-03-21 09:36:03 |
37.7498 | 15.1685 | 10 | 2021-07-12 16:55:05 |
Bollettino Sismico Italiano INGV | 88766251 |
Reviewed Rev200 |
ML 1.6 | 2021-03-21 09:36:03 |
37.743 | 15.129 | 12 | 2021-06-23 10:17:23 |
Sala Operativa INGV-OE (Catania) | 88342501 |
Field | Value |
---|---|
Time (UTC) | 2021-03-21 09:36:03 ± 0.14 |
Latitude | 37.7498 ± 0.0063 |
Longitude | 15.1685 ± 0.0080 |
Depth (km) | 10 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 88766251 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 707 |
Semi-minor axis of confidence ellipse (meter) | 460 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 128 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 710.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 129 |
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) | 0.29 |
Epicentral distance of station closest to the epicenter (degree) | 0.02698 |
Epicentral distance of station farthest from the epicenter (degree) | 0.25721 |
Number of stations at which the event was observed | 18 |
Number of stations from which data was used for origin computation | 18 |
Field | Value |
---|---|
Value | 2.1 |
Uncertainty | 0.3 |
Num. used stations | 16 |
Type of magnitude | ML |
Reference to an origin | 88766251 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-06-23 10:16:47 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | |
Type of magnitude | ML |
Reference to an origin | 88342501 |
Agency | INGV |
Autore | Sala Operativa INGV-OE (Catania) |
Time of creation (UTC) | 2021-03-21 09:43:31 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ESLN.HHZ. | 2021-03-21T09:36:10.55 | 0.6 | undecidable | manual | S | 250 | 18.1707 | 119 | 0.12 | 48 |
IV.EMFS.HHZ. | 2021-03-21T09:36:10.38 | 0.6 | undecidable | manual | S | 257 | 15.3735 | 124 | 0.78 | 40 |
IV.EMCN.HHZ. | 2021-03-21T09:36:09.07 | 0.3 | undecidable | manual | S | 291 | 12.6762 | 129 | 0.21 | 72 |
IV.EPZF.HHZ. | 2021-03-21T09:36:09.39 | 0.3 | undecidable | manual | P | 287 | 28.5492 | 50 | 0.28 | 69 |
IV.ECTS.HHZ. | 2021-03-21T09:36:09.56 | 0.6 | undecidable | manual | S | 344 | 15.2736 | 124 | -0.01 | 50 |
IV.EPIT.HHZ. | 2021-03-21T09:36:09.19 | 0.3 | undecidable | manual | S | 305 | 11.9769 | 131 | 0.53 | 67 |
IV.AIO.HHZ. | 2021-03-21T09:36:08.72 | 0.3 | undecidable | manual | P | 13 | 25.1526 | 50 | 0.12 | 72 |
IV.ECZM.HHZ. | 2021-03-21T09:36:08.40 | 0.1 | undecidable | manual | P | 265 | 23.2545 | 114 | 0.1 | 96 |
IV.EMFO.HHZ. | 2021-03-21T09:36:07.50 | 0.3 | undecidable | manual | S | 257 | 7.0929 | 146 | -0.02 | 75 |
IV.EFIU.HHZ. | 2021-03-21T09:36:07.86 | 0.3 | undecidable | manual | S | 40 | 5.6943 | 151 | 0.58 | 66 |
IV.EMPL.HHZ. | 2021-03-21T09:36:07.90 | 0.3 | undecidable | manual | P | 246 | 19.0698 | 118 | 0.36 | 69 |
IV.EMSG.HHZ. | 2021-03-21T09:36:07.98 | 0.1 | undecidable | manual | P | 292 | 20.7681 | 116 | 0.15 | 95 |
IV.EVRN.HHZ. | 2021-03-21T09:36:07.77 | 0.3 | undecidable | manual | S | 203 | 7.2927 | 144 | 0.2 | 73 |
IV.ESLN.HHZ. | 2021-03-21T09:36:07.16 | 0.1 | undecidable | manual | P | 250 | 18.1707 | 119 | -0.21 | 95 |
IV.ECBD.HHZ. | 2021-03-21T09:36:07.57 | 0.3 | undecidable | manual | S | 295 | 7.881 | 142 | -0.13 | 74 |
IV.EPOZ.HHZ. | 2021-03-21T09:36:06.43 | 0.1 | undecidable | manual | P | 169 | 8.7801 | 139 | 0.52 | 90 |
IV.ECTS.HHZ. | 2021-03-21T09:36:06.50 | 0.3 | undecidable | manual | P | 344 | 15.2736 | 124 | -0.38 | 69 |
IV.EPIT.HHZ. | 2021-03-21T09:36:06.34 | 0.1 | undecidable | manual | P | 305 | 11.9769 | 131 | -0.01 | 100 |
IV.ECNE.HHN. | 2021-03-21T09:36:06.84 | 0.3 | undecidable | manual | P | 277 | 14.6742 | 125 | 0.05 | 74 |
IV.EMCN.HHZ. | 2021-03-21T09:36:06.35 | 0.1 | undecidable | manual | P | 291 | 12.6762 | 129 | -0.11 | 98 |
IV.ESPC.HHZ. | 2021-03-21T09:36:06.24 | 0.1 | undecidable | manual | P | 243 | 13.875 | 126 | -0.42 | 91 |
IV.ESAL.HHZ. | 2021-03-21T09:36:06.71 | 0.3 | undecidable | manual | S | 281 | 2.997 | 164 | -0.2 | 73 |
IV.EMFS.HHZ. | 2021-03-21T09:36:06.62 | 0.1 | undecidable | manual | P | 257 | 15.3735 | 124 | -0.27 | 94 |
IV.EVRN.HHZ. | 2021-03-21T09:36:05.66 | 0.1 | undecidable | manual | P | 203 | 7.2927 | 144 | -0.06 | 100 |
IV.ECBD.HHZ. | 2021-03-21T09:36:05.48 | 0.1 | undecidable | manual | P | 295 | 7.881 | 142 | -0.31 | 94 |
IV.EMFO.HHZ. | 2021-03-21T09:36:05.29 | 0.1 | undecidable | manual | P | 257 | 7.0929 | 146 | -0.4 | 93 |
IV.EFIU.HHZ. | 2021-03-21T09:36:05.50 | 0.1 | undecidable | manual | P | 40 | 5.6943 | 151 | -0.05 | 100 |
IV.ESAL.HHZ. | 2021-03-21T09:36:04.88 | 0.1 | undecidable | manual | P | 281 | 2.997 | 164 | -0.46 | 92 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.ESAL.HHN. | ML:2.3 | 0.0037710435 | 0.2176 | AML | other | m | 2021-03-21T09:36:07.06 |
IV.ESAL.HHE. | ML:2.4 | 0.004557724 | 0.2432 | AML | other | m | 2021-03-21T09:36:07.06 |
IV.EVRN.HNE. | ML:2.2 | 0.0023233705 | 0.288 | AML | other | m | 2021-03-21T09:36:08.03 |
IV.EVRN.HHN. | ML:2.3 | 0.0027881 | 0.4032 | AML | other | m | 2021-03-21T09:36:11.58 |
IV.EPIT.HHE. | ML:2.5 | 0.00327 | 0.3 | AML | other | m | 2021-03-21T09:36:09.43 |
IV.EPIT.HHN. | ML:2.5 | 0.0032750000000000006 | 0.24 | AML | other | m | 2021-03-21T09:36:09.55 |
IV.ECTS.HHE. | ML:1.4 | 0.000258221 | 0.4416 | AML | other | m | 2021-03-21T09:36:10.66 |
IV.ECTS.HHN. | ML:1.6 | 0.0003395 | 0.28 | AML | other | m | 2021-03-21T09:36:11.40 |
IV.EMPL.HHE. | ML:1.8 | 0.00050468325 | 0.4224 | AML | other | m | 2021-03-21T09:36:15.54 |
IV.EMPL.HHN. | ML:1.9 | 0.0006846779 | 0.2816 | AML | other | m | 2021-03-21T09:36:19.09 |
IV.EMSG.HHE. | ML:1.9 | 0.0006235321499999999 | 0.4224 | AML | other | m | 2021-03-21T09:36:17.32 |
IV.EMSG.HHN. | ML:1.9 | 0.0006336964499999999 | 0.4992 | AML | other | m | 2021-03-21T09:36:19.65 |
IV.EFIU.HHN. | ML:1.7 | 0.00084544195 | 0.0768 | AML | other | m | 2021-03-21T09:36:05.66 |
IV.EFIU.HHE. | ML:1.5 | 0.000581939 | 0.4608 | AML | other | m | 2021-03-21T09:36:11.01 |
IV.EVRN.HNN. | ML:2.3 | 0.0031867595 | 0.4096 | AML | other | m | 2021-03-21T09:36:11.58 |
IV.EVRN.HHE. | ML:2.2 | 0.0021717495000000003 | 0.2432 | AML | other | m | 2021-03-21T09:36:08.04 |