A magnitude ML 0.9 earthquake occured in region: 4 km SW Castelbuono (PA), on
and geographic coordinates (lat, lon) 37.9040, 14.0650 at 8 km depth.
The earthquake was located by: Sala Sismica INGV-Roma.
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 |
---|---|---|---|---|
Castelbuono | PA | 4 | 8943 | 8943 |
Isnello | PA | 7 | 1589 | 10532 |
Geraci Siculo | PA | 9 | 1945 | 12477 |
Gratteri | PA | 11 | 963 | 13440 |
Petralia Sottana | PA | 11 | 2821 | 16261 |
San Mauro Castelverde | PA | 11 | 1701 | 17962 |
Collesano | PA | 11 | 4054 | 22016 |
Polizzi Generosa | PA | 12 | 3407 | 25423 |
Petralia Soprana | PA | 13 | 3360 | 28783 |
Pollina | PA | 13 | 2974 | 31757 |
Castellana Sicula | PA | 14 | 3411 | 35168 |
Scillato | PA | 15 | 613 | 35781 |
Lascari | PA | 15 | 3588 | 39369 |
Cefalù | PA | 16 | 14393 | 53762 |
Blufi | PA | 17 | 1029 | 54791 |
Gangi | PA | 17 | 6811 | 61602 |
Bompietro | PA | 18 | 1401 | 63003 |
Caltavuturo | PA | 18 | 4017 | 67020 |
Tusa | ME | 18 | 2925 | 69945 |
Campofelice di Roccella | PA | 19 | 7537 | 77482 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-07-28 03:55:35 |
37.9042 | 14.0647 | 8 | 2021-07-28 04:57:53 |
Sala Sismica INGV-Roma | 93289771 |
Field | Value |
---|---|
Time (UTC) | 2021-07-28 03:55:35 ± 0.29 |
Latitude | 37.9042 ± 0.0081 |
Longitude | 14.0647 ± 0.0228 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 93289771 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 2144 |
Semi-minor axis of confidence ellipse (meter) | 358 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 249 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 2140.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 189 |
Number of associated phases, regardless of their use for origin computation | 7 |
Number of defining phases | 7 |
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) | 0.03327 |
Epicentral distance of station farthest from the epicenter (degree) | 0.10792 |
Number of stations at which the event was observed | 4 |
Number of stations from which data was used for origin computation | 4 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 93289771 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-07-28 04:57:53 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.GIB.HHZ. | 2021-07-28T03:55:40.11 | 0.6 | undecidable | manual | S | 340 | 10.0788 | 129 | 0.29 | 48 |
IV.PETRA.HHZ. | 2021-07-28T03:55:39.70 | 0.6 | undecidable | manual | S | 151 | 8.9799 | 132 | 0.18 | 49 |
IV.CSLB.HHZ. | 2021-07-28T03:55:38.27 | 0.6 | undecidable | manual | S | 351 | 3.6963 | 155 | -0.15 | 50 |
IV.PLLN.EHZ. | 2021-07-28T03:55:38.23 | 0.6 | positive | manual | P | 35 | 11.9769 | 124 | 0.01 | 50 |
IV.PETRA.HHZ. | 2021-07-28T03:55:37.70 | 0.3 | positive | manual | P | 151 | 8.9799 | 132 | -0.04 | 76 |
IV.GIB.HHZ. | 2021-07-28T03:55:37.93 | 0.6 | undecidable | manual | P | 340 | 10.0788 | 129 | 0.01 | 51 |
IV.CSLB.HHZ. | 2021-07-28T03:55:36.98 | 0.1 | negative | manual | P | 351 | 3.6963 | 155 | -0.13 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.GIB.HHN. | ML:1.3 | 0.0002855 | 0.48 | AML | other | m | 2021-07-28T03:55:40.53 |
IV.PETRA.HHN. | ML:1.0 | 0.0001365 | 0.52 | AML | other | m | 2021-07-28T03:55:40.38 |
IV.GIB.HHE. | ML:0.9 | 0.00011899999999999999 | 0.5 | AML | other | m | 2021-07-28T03:55:41.92 |
IV.PETRA.HHE. | ML:0.8 | 0.0001036 | 0.4 | AML | other | m | 2021-07-28T03:55:42.56 |
IV.PLLN.EHE. | ML:0.8 | 0.00006850000000000001 | 0.76 | AML | other | m | 2021-07-28T03:55:43.49 |
IV.PLLN.EHN. | ML:0.8 | 0.00007604999999999999 | 0.38 | AML | other | m | 2021-07-28T03:55:43.57 |