A magnitude ML 0.9 earthquake occured in region: 8 km E Valfabbrica (PG), on
and geographic coordinates (lat, lon) 43.1580, 12.6960 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 |
---|---|---|---|---|
Valfabbrica | PG | 8 | 3389 | 3389 |
Nocera Umbra | PG | 9 | 5839 | 9228 |
Gualdo Tadino | PG | 11 | 15208 | 24436 |
Assisi | PG | 12 | 28299 | 52735 |
Valtopina | PG | 12 | 1398 | 54133 |
Bastia Umbra | PG | 16 | 21874 | 76007 |
Fossato di Vico | PG | 16 | 2840 | 78847 |
Spello | PG | 18 | 8645 | 87492 |
Fiuminata | MC | 20 | 1402 | 88894 |
Sigillo | PG | 20 | 2404 | 91298 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 0.9 | 2021-08-03 12:15:54 |
43.1583 | 12.696 | 8 | 2021-12-29 11:12:53 |
Bollettino Sismico Italiano INGV | 98466031 |
Reviewed Rev100 |
ML 1.1 | 2021-08-03 12:15:54 |
43.1397 | 12.6727 | 11 | 2021-08-03 12:23:31 |
Sala Sismica INGV-Roma | 93612371 |
Field | Value |
---|---|
Time (UTC) | 2021-08-03 12:15:54 ± 0.07 |
Latitude | 43.1583 ± 0.0036 |
Longitude | 12.6960 ± 0.0049 |
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 | 98466031 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 431 |
Semi-minor axis of confidence ellipse (meter) | 291 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 236 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 430.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 110 |
Number of associated phases, regardless of their use for origin computation | 21 |
Number of defining phases | 21 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.19 |
Epicentral distance of station closest to the epicenter (degree) | 0.04856 |
Epicentral distance of station farthest from the epicenter (degree) | 0.39480 |
Number of stations at which the event was observed | 11 |
Number of stations from which data was used for origin computation | 11 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 93612371 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-03 12:23:31 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 98466031 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-12-13 14:14:14 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PIEI.HHZ. | 2021-08-03T12:16:09.61 | 0.6 | undecidable | manual | S | 343 | 43.8228 | 50 | 0.25 | 45 |
IV.CSP1.EHZ. | 2021-08-03T12:16:08.80 | 0.6 | undecidable | manual | S | 100 | 41.8248 | 50 | -0.03 | 47 |
IV.EL6.EHN. | 2021-08-03T12:16:07.75 | 0.6 | undecidable | manual | S | 60 | 37.8288 | 50 | -0.02 | 47 |
IV.SSFR.HHZ. | 2021-08-03T12:16:05.69 | 0.6 | undecidable | manual | S | 13 | 31.6461 | 104 | -0.1 | 47 |
IV.ATSC.EHZ. | 2021-08-03T12:16:05.00 | 0.6 | undecidable | manual | S | 358 | 29.4483 | 105 | -0.07 | 47 |
IV.ATLO.EHE. | 2021-08-03T12:16:04.79 | 0.6 | undecidable | manual | S | 307 | 29.1486 | 105 | -0.16 | 47 |
IV.MML1.HNE. | 2021-08-03T12:16:03.04 | 0.6 | undecidable | manual | S | 102 | 22.8549 | 109 | 0.17 | 47 |
IV.CSP1.EHZ. | 2021-08-03T12:16:03.05 | 0.3 | undecidable | manual | P | 100 | 41.8248 | 50 | 0.28 | 67 |
IV.PIEI.HHZ. | 2021-08-03T12:16:02.84 | 0.3 | undecidable | manual | P | 343 | 43.8228 | 50 | -0.23 | 67 |
IV.MURB.HHZ. | 2021-08-03T12:16:01.89 | 0.3 | undecidable | manual | S | 310 | 18.0708 | 113 | 0.56 | 65 |
IV.EL6.EHN. | 2021-08-03T12:16:01.92 | 0.3 | undecidable | manual | P | 60 | 37.8288 | 50 | -0.23 | 68 |
IV.FDMO.HHZ. | 2021-08-03T12:16:01.44 | 0.3 | undecidable | manual | P | 113 | 34.4433 | 103 | -0.12 | 70 |
IV.ATLO.EHE. | 2021-08-03T12:16:00.41 | 0.3 | undecidable | manual | P | 307 | 29.1486 | 105 | -0.12 | 71 |
IV.ATSC.EHZ. | 2021-08-03T12:16:00.49 | 0.3 | undecidable | manual | P | 358 | 29.4483 | 105 | -0.11 | 71 |
IV.SSFR.HHZ. | 2021-08-03T12:16:00.78 | 0.3 | undecidable | manual | P | 13 | 31.6461 | 104 | -0.23 | 69 |
IV.ASSB.HHZ. | 2021-08-03T12:15:59.57 | 0.6 | undecidable | manual | S | 193 | 13.1757 | 121 | -0.24 | 47 |
IV.MML1.HNE. | 2021-08-03T12:15:59.73 | 0.3 | undecidable | manual | P | 102 | 22.8549 | 109 | 0.4 | 67 |
IV.MURB.HHZ. | 2021-08-03T12:15:58.57 | 0.1 | undecidable | manual | P | 310 | 18.0708 | 113 | 0.14 | 95 |
IV.ASSB.HHZ. | 2021-08-03T12:15:57.52 | 0.1 | positive | manual | P | 193 | 13.1757 | 121 | -0.04 | 98 |
IV.ATCC.EHZ. | 2021-08-03T12:15:57.60 | 0.6 | undecidable | manual | S | 303 | 5.3946 | 145 | -0.2 | 48 |
IV.ATCC.EHZ. | 2021-08-03T12:15:56.41 | 0.1 | undecidable | manual | P | 303 | 5.3946 | 145 | 0.01 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.ASSB.HHN. | ML:0.9 | 0.0000963 | 0.18 | AML | other | m | 2021-08-03T12:15:59.85 |
IV.ASSB.HHE. | ML:0.8 | 0.0000726 | 1.2 | AML | other | m | 2021-08-03T12:16:00.87 |
IV.MURB.HHE. | ML:1.0 | 0.0000862 | 0.46 | AML | other | m | 2021-08-03T12:16:02.96 |
IV.MURB.HHN. | ML:0.9 | 0.00007625 | 0.54 | AML | other | m | 2021-08-03T12:16:03.71 |