A magnitude ML 1.0 earthquake occured in region: 4 km W Valtopina (PG), on
and geographic coordinates (lat, lon) 43.0670, 12.7120 at 10 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 |
---|---|---|---|---|
Valtopina | PG | 4 | 1398 | 1398 |
Assisi | PG | 8 | 28299 | 29697 |
Nocera Umbra | PG | 8 | 5839 | 35536 |
Spello | PG | 9 | 8645 | 44181 |
Foligno | PG | 12 | 57155 | 101336 |
Cannara | PG | 13 | 4305 | 105641 |
Bastia Umbra | PG | 13 | 21874 | 127515 |
Valfabbrica | PG | 14 | 3389 | 130904 |
Bevagna | PG | 17 | 5081 | 135985 |
Gualdo Tadino | PG | 19 | 15208 | 151193 |
Bettona | PG | 19 | 4367 | 155560 |
Serravalle di Chienti | MC | 20 | 1070 | 156630 |
Montefalco | PG | 20 | 5679 | 162309 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2021-10-21 20:56:59 |
43.0672 | 12.7125 | 11 | 2021-10-21 21:11:42 |
Sala Sismica INGV-Roma | 96857431 |
Field | Value |
---|---|
Time (UTC) | 2021-10-21 20:56:59 ± 0.12 |
Latitude | 43.0672 ± 0.0054 |
Longitude | 12.7125 ± 0.0062 |
Depth (km) | 11 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 96857431 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 579 |
Semi-minor axis of confidence ellipse (meter) | 418 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 221 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 580.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 124 |
Number of associated phases, regardless of their use for origin computation | 19 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.18 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.27519 |
Number of stations at which the event was observed | 14 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.2 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 96857431 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-10-21 21:11:42 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
HL.VLS.HHZ. | 2021-10-21T20:58:41.02 | 3.0 | negative | manual | Pn | -8.69 | 0 | |||
IX.PGN3.HHZ.02 | 2021-10-21T20:58:40.13 | 3.0 | undecidable | manual | Sg | 7.18 | 0 | |||
IV.ORI.HHZ. | 2021-10-21T20:58:36.72 | 3.0 | undecidable | manual | Sn | -9.99 | 0 | |||
IX.SFL3.HNZ.01 | 2021-10-21T20:58:31.83 | 3.0 | undecidable | manual | Sg | 5.47 | 0 | |||
IV.CDRU.HNZ. | 2021-10-21T20:58:28.61 | 3.0 | undecidable | manual | Sg | 0.67 | 0 | |||
IV.MTMR.EHZ. | 2021-10-21T20:58:16.07 | 3.0 | undecidable | manual | Sg | -0.39 | 0 | |||
IX.NSC3.EHZ.02 | 2021-10-21T20:58:04.67 | 3.0 | undecidable | manual | Sn | -9.99 | 0 | |||
IV.IMOL.HNZ. | 2021-10-21T20:57:38.02 | 3.0 | undecidable | manual | Sn | 0.02 | 0 | |||
GU.GSCL.HHZ. | 2021-10-21T20:57:23.16 | 3.0 | undecidable | manual | Pn | -0.67 | 0 | |||
IV.FDMO.HHZ. | 2021-10-21T20:57:10.61 | 0.1 | undecidable | manual | S | 96 | 30.5472 | 50 | 0.02 | 96 |
IV.CESI.HHZ. | 2021-10-21T20:57:07.09 | 0.1 | undecidable | manual | S | 114 | 17.0718 | 122 | 0.32 | 93 |
IV.MML1.EHZ. | 2021-10-21T20:57:07.99 | 0.1 | undecidable | manual | S | 76 | 21.6672 | 116 | -0.18 | 95 |
IV.ATCC.EHZ. | 2021-10-21T20:57:06.11 | 0.1 | undecidable | manual | S | 336 | 14.3745 | 126 | 0.11 | 97 |
IV.FDMO.HHZ. | 2021-10-21T20:57:05.86 | 1.0 | negative | manual | P | 96 | 30.5472 | 50 | -0.18 | 23 |
IV.MML1.EHZ. | 2021-10-21T20:57:04.49 | 0.3 | undecidable | manual | P | 76 | 21.6672 | 116 | -0.16 | 71 |
IV.ATCC.EHZ. | 2021-10-21T20:57:03.49 | 0.3 | positive | manual | P | 336 | 14.3745 | 126 | 0.1 | 73 |
IV.ASSB.HHZ. | 2021-10-21T20:57:03.71 | 0.1 | undecidable | manual | S | 238 | 5.0949 | 154 | -0.17 | 98 |
IV.CESI.HHZ. | 2021-10-21T20:57:03.76 | 0.3 | undecidable | manual | P | 114 | 17.0718 | 122 | -0.09 | 73 |
IV.ASSB.HHZ. | 2021-10-21T20:57:02.23 | 0.1 | undecidable | manual | P | 238 | 5.0949 | 154 | 0.05 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.ASSB.HHN. | ML:1.2 | 0.0002375 | 0.16 | AML | other | m | 2021-10-21T20:57:03.74 |
IV.ASSB.HHE. | ML:1.0 | 0.00014749999999999998 | 0.38 | AML | other | m | 2021-10-21T20:57:04.33 |
IV.ATCC.EHE. | ML:0.8 | 0.00005935 | 0.84 | AML | other | m | 2021-10-21T20:57:06.19 |
IV.ATCC.EHN. | ML:0.9 | 0.00008 | 1.14 | AML | other | m | 2021-10-21T20:57:06.19 |