A magnitude ML 0.4 earthquake occured in region: 5 km E Valtopina (PG), on
and geographic coordinates (lat, lon) 43.0660, 12.8200 at 8 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 |
---|---|---|---|---|
Valtopina | PG | 5 | 1398 | 1398 |
Nocera Umbra | PG | 6 | 5839 | 7237 |
Serravalle di Chienti | MC | 11 | 1070 | 8307 |
Sefro | MC | 14 | 422 | 8729 |
Spello | PG | 14 | 8645 | 17374 |
Foligno | PG | 15 | 57155 | 74529 |
Assisi | PG | 17 | 28299 | 102828 |
Fiuminata | MC | 17 | 1402 | 104230 |
Monte Cavallo | MC | 17 | 145 | 104375 |
Muccia | MC | 18 | 915 | 105290 |
Pioraco | MC | 19 | 1134 | 106424 |
Gualdo Tadino | PG | 19 | 15208 | 121632 |
Pieve Torina | MC | 19 | 1458 | 123090 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.4 | 2021-09-28 23:26:19 |
43.0658 | 12.8197 | 8 | 2022-03-30 13:04:10 |
Bollettino Sismico Italiano INGV | 96342961 |
Reviewed Rev100 |
ML 0.4 | 2021-09-28 23:26:19 |
43.0627 | 12.8168 | 8 | 2021-09-28 23:35:50 |
Sala Sismica INGV-Roma | 96011201 |
Field | Value |
---|---|
Time (UTC) | 2021-09-28 23:26:19 ± 0.18 |
Latitude | 43.0658 ± 0.0090 |
Longitude | 12.8197 ± 0.0062 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 96342961 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 965 |
Semi-minor axis of confidence ellipse (meter) | 201 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 191 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 970.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 122 |
Number of associated phases, regardless of their use for origin computation | 11 |
Number of defining phases | 11 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.32 |
Epicentral distance of station closest to the epicenter (degree) | 0.08723 |
Epicentral distance of station farthest from the epicenter (degree) | 0.31656 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 0.4 |
Uncertainty | 0.1 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 96011201 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-28 23:35:50 |
Field | Value |
---|---|
Value | 0.4 |
Uncertainty | 0.1 |
Num. used stations | 2 |
Type of magnitude | ML |
Reference to an origin | 96342961 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-10-08 08:26:09 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.NRCA.HHZ. | 2021-09-28T23:26:26.51 | 0.1 | undecidable | manual | P | 137 | 35.1426 | 103 | 0.26 | 87 |
IV.FDMO.HHZ. | 2021-09-28T23:26:26.80 | 0.3 | undecidable | manual | S | 98 | 21.9669 | 110 | -0.31 | 69 |
IV.ATCC.EHZ. | 2021-09-28T23:26:26.34 | 0.3 | undecidable | manual | S | 312 | 19.6692 | 112 | -0.03 | 73 |
IV.ASSB.HHZ. | 2021-09-28T23:26:24.28 | 0.1 | undecidable | manual | S | 259 | 13.2756 | 120 | -0.1 | 96 |
IV.MML1.EHZ. | 2021-09-28T23:26:24.58 | 0.1 | undecidable | manual | S | 67 | 13.3755 | 120 | 0.17 | 98 |
IV.ATCC.EHZ. | 2021-09-28T23:26:23.23 | 0.3 | undecidable | manual | P | 312 | 19.6692 | 112 | -0.04 | 74 |
IV.CESI.HHZ. | 2021-09-28T23:26:23.47 | 0.1 | undecidable | manual | S | 134 | 9.6792 | 129 | 0.13 | 100 |
IV.ASSB.HHZ. | 2021-09-28T23:26:22.14 | 0.1 | undecidable | manual | P | 259 | 13.2756 | 120 | 0.02 | 99 |
IV.MML1.EHZ. | 2021-09-28T23:26:22.44 | 0.1 | undecidable | manual | P | 67 | 13.3755 | 120 | 0.3 | 93 |
IV.FDMO.HHZ. | 2021-09-28T23:26:22.95 | 0.1 | undecidable | manual | P | 98 | 21.9669 | 110 | -0.74 | 82 |
IV.CESI.HHZ. | 2021-09-28T23:26:21.68 | 0.1 | undecidable | manual | P | 134 | 9.6792 | 129 | 0.16 | 97 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.ASSB.HHE. | ML:0.3 | 0.000027249999999999998 | 0.1 | AML | other | m | 2021-09-28T23:26:24.52 |
IV.ASSB.HHN. | ML:0.5 | 0.00003915 | 0.66 | AML | other | m | 2021-09-28T23:26:24.55 |