A magnitude ML 1.8 earthquake occured in region: 2 km NE Massa Martana (PG), on
and geographic coordinates (lat, lon) 42.7880, 12.5360 at 7 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 |
---|---|---|---|---|
Massa Martana | PG | 2 | 3770 | 3770 |
Giano dell'Umbria | PG | 6 | 3846 | 7616 |
Todi | PG | 11 | 16851 | 24467 |
Acquasparta | TR | 11 | 4778 | 29245 |
Castel Ritaldi | PG | 12 | 3278 | 32523 |
Gualdo Cattaneo | PG | 14 | 6155 | 38678 |
Collazzone | PG | 14 | 3473 | 42151 |
Montefalco | PG | 15 | 5679 | 47830 |
Montecastrilli | TR | 16 | 5022 | 52852 |
Fratta Todina | PG | 16 | 1839 | 54691 |
Monte Castello di Vibio | PG | 16 | 1567 | 56258 |
Avigliano Umbro | TR | 17 | 2558 | 58816 |
Bevagna | PG | 17 | 5081 | 63897 |
Spoleto | PG | 18 | 38218 | 102115 |
San Gemini | TR | 19 | 5018 | 107133 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.8 | 2021-07-28 09:44:41 |
42.7878 | 12.5358 | 7 | 2021-12-29 11:12:26 |
Bollettino Sismico Italiano INGV | 95145761 |
Reviewed Rev100 |
ML 1.8 | 2021-07-28 09:44:41 |
42.7898 | 12.5512 | 8 | 2021-07-28 09:50:20 |
Sala Sismica INGV-Roma | 93297601 |
Field | Value |
---|---|
Time (UTC) | 2021-07-28 09:44:41 ± 0.08 |
Latitude | 42.7878 ± 0.0036 |
Longitude | 12.5358 ± 0.0074 |
Depth (km) | 7 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 95145761 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 586 |
Semi-minor axis of confidence ellipse (meter) | 378 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 258 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 590.0 |
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 | 34 |
Number of defining phases | 28 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.23 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.70507 |
Number of stations at which the event was observed | 23 |
Number of stations from which data was used for origin computation | 17 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.2 |
Num. used stations | 22 |
Type of magnitude | ML |
Reference to an origin | 95145761 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-09-07 08:26:56 |
Field | Value |
---|---|
Value | 1.8 |
Uncertainty | 0.2 |
Num. used stations | 22 |
Type of magnitude | ML |
Reference to an origin | 93297601 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-07-28 09:50:20 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.TST02.HHZ. | 2021-07-28T09:45:31.35 | 3.0 | undecidable | manual | S | 0.24 | 0 | |||
IV.LMD.HHZ. | 2021-07-28T09:45:26.99 | 3.0 | undecidable | manual | S | -0.8 | 0 | |||
IV.EL6.EHZ. | 2021-07-28T09:45:06.56 | 3.0 | undecidable | manual | S | 0.01 | 0 | |||
IV.ATVO.HHZ. | 2021-07-28T09:45:03.87 | 3.0 | undecidable | manual | S | -0.26 | 0 | |||
IV.CSP1.EHZ. | 2021-07-28T09:45:02.43 | 0.3 | undecidable | manual | S | 58 | 63.9915 | 50 | 0.34 | 65 |
IV.RM33.EHZ. | 2021-07-28T09:45:01.94 | 0.3 | undecidable | manual | S | 119 | 63.3921 | 50 | -0.01 | 69 |
IV.MC2.EHZ. | 2021-07-28T09:45:00.30 | 0.3 | undecidable | manual | S | 75 | 54.9006 | 50 | 0.63 | 60 |
IV.RMP.HHZ. | 2021-07-28T09:45:00.44 | 3.0 | positive | manual | P | -0.29 | 0 | |||
IV.FDMO.HHZ. | 2021-07-28T09:44:59.03 | 0.3 | undecidable | manual | S | 58 | 52.6029 | 50 | -0.04 | 70 |
IV.MML1.EHZ. | 2021-07-28T09:44:58.44 | 0.3 | undecidable | manual | S | 44 | 50.616 | 50 | -0.08 | 70 |
IV.NARO.HHZ. | 2021-07-28T09:44:57.50 | 3.0 | negative | manual | P | -0.86 | 0 | |||
IV.MF5.EHZ. | 2021-07-28T09:44:56.25 | 0.1 | undecidable | manual | P | 73 | 78.2661 | 50 | 0.54 | 80 |
IV.CESI.HNE. | 2021-07-28T09:44:54.84 | 0.6 | undecidable | manual | S | 51 | 38.4282 | 50 | -0.44 | 44 |
IV.RM33.EHZ. | 2021-07-28T09:44:53.13 | 0.1 | undecidable | manual | P | 119 | 63.3921 | 50 | -0.29 | 87 |
IV.CSP1.EHZ. | 2021-07-28T09:44:53.34 | 0.1 | undecidable | manual | P | 58 | 63.9915 | 50 | -0.15 | 90 |
IV.GAVE.EHZ. | 2021-07-28T09:44:52.72 | 0.6 | undecidable | manual | S | 110 | 31.0467 | 103 | -0.11 | 48 |
IV.ATVA.EHE. | 2021-07-28T09:44:52.77 | 0.3 | undecidable | manual | P | 340 | 58.0974 | 50 | 0.18 | 68 |
IV.ASSB.HHZ. | 2021-07-28T09:44:52.38 | 0.3 | undecidable | manual | S | 19 | 29.9478 | 104 | -0.08 | 73 |
IV.FDMO.HHZ. | 2021-07-28T09:44:51.47 | 0.1 | negative | manual | P | 58 | 52.6029 | 50 | -0.28 | 89 |
IV.MC2.EHZ. | 2021-07-28T09:44:51.96 | 0.1 | negative | manual | P | 75 | 54.9006 | 50 | -0.13 | 92 |
IV.MURB.HHZ. | 2021-07-28T09:44:51.98 | 0.6 | undecidable | manual | P | 359 | 52.7028 | 50 | 0.22 | 45 |
IV.MML1.EHZ. | 2021-07-28T09:44:51.32 | 0.3 | undecidable | manual | P | 44 | 50.616 | 50 | -0.11 | 70 |
IV.ATCC.HNN. | 2021-07-28T09:44:50.52 | 0.1 | undecidable | manual | P | 11 | 44.8218 | 50 | -0.04 | 95 |
IV.CESI.HNE. | 2021-07-28T09:44:49.39 | 0.1 | undecidable | manual | P | 51 | 38.4282 | 50 | -0.17 | 94 |
IV.CESX.HHZ. | 2021-07-28T09:44:49.08 | 0.3 | undecidable | manual | S | 168 | 20.3685 | 110 | -0.18 | 72 |
IV.MGAB.HHZ. | 2021-07-28T09:44:49.26 | 0.3 | undecidable | manual | P | 292 | 37.1295 | 101 | -0.07 | 72 |
IV.ARRO.EHZ. | 2021-07-28T09:44:48.36 | 0.1 | undecidable | manual | P | 141 | 29.748 | 104 | 0.46 | 89 |
IV.ASSB.HHZ. | 2021-07-28T09:44:47.90 | 0.1 | undecidable | manual | P | 19 | 29.9478 | 104 | -0.04 | 98 |
IV.GAVE.EHZ. | 2021-07-28T09:44:47.84 | 0.1 | undecidable | manual | P | 110 | 31.0467 | 103 | -0.31 | 92 |
IV.CESX.HHZ. | 2021-07-28T09:44:46.08 | 0.1 | undecidable | manual | P | 168 | 20.3685 | 110 | -0.01 | 100 |
IV.MOMA.HHZ. | 2021-07-28T09:44:44.47 | 0.3 | undecidable | manual | S | 58 | 3.2967 | 156 | -0.09 | 76 |
IT.GNU.HGZ. | 2021-07-28T09:44:44.50 | 0.3 | undecidable | manual | S | 58 | 3.2967 | 156 | -0.06 | 76 |
IV.MOMA.HHZ. | 2021-07-28T09:44:43.59 | 0.1 | positive | manual | P | 58 | 3.2967 | 156 | 0.22 | 99 |
IT.GNU.HGZ. | 2021-07-28T09:44:43.60 | 0.1 | positive | manual | P | 58 | 3.2967 | 156 | 0.23 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.CESX.HHE. | ML:1.8 | 0.00053 | 0.28 | AML | other | m | 2021-07-28T09:44:50.74 |
IV.CESX.HHN. | ML:1.8 | 0.00048150000000000005 | 0.18 | AML | other | m | 2021-07-28T09:44:51.70 |
IV.ARRO.EHE. | ML:1.6 | 0.000225 | 0.8 | AML | other | m | 2021-07-28T09:44:53.85 |
IV.ASSB.HHN. | ML:1.8 | 0.00032599999999999996 | 0.32 | AML | other | m | 2021-07-28T09:44:53.36 |
IV.ARRO.EHN. | ML:1.7 | 0.0002545 | 0.2 | AML | other | m | 2021-07-28T09:44:54.52 |
IV.ASSB.HHE. | ML:1.7 | 0.0002455 | 0.38 | AML | other | m | 2021-07-28T09:44:54.79 |
IV.GAVE.EHE. | ML:1.9 | 0.000372 | 0.8 | AML | other | m | 2021-07-28T09:44:55.49 |
IV.GAVE.EHN. | ML:1.8 | 0.000302 | 0.8 | AML | other | m | 2021-07-28T09:44:56.73 |
IV.MGAB.HHE. | ML:1.8 | 0.00021650000000000003 | 1.16 | AML | other | m | 2021-07-28T09:44:57.27 |
IV.MGAB.HHN. | ML:1.8 | 0.000225 | 0.42 | AML | other | m | 2021-07-28T09:44:57.51 |
IV.FDMO.HHN. | ML:1.7 | 0.00011929999999999999 | 0.14 | AML | other | m | 2021-07-28T09:44:59.96 |
IV.FDMO.HHE. | ML:1.6 | 0.00010389999999999999 | 0.78 | AML | other | m | 2021-07-28T09:45:00.49 |
IV.MURB.HHE. | ML:2.2 | 0.000395 | 0.22 | AML | other | m | 2021-07-28T09:45:01.04 |
IV.MURB.HHN. | ML:2.2 | 0.00039249999999999995 | 0.42 | AML | other | m | 2021-07-28T09:45:01.57 |
IV.CSP1.EHN. | ML:2.1 | 0.000243 | 0.36 | AML | other | m | 2021-07-28T09:45:02.75 |
IV.CSP1.EHE. | ML:2.0 | 0.000178 | 1.5 | AML | other | m | 2021-07-28T09:45:03.10 |
IV.RM33.EHN. | ML:1.7 | 0.0000895 | 0.26 | AML | other | m | 2021-07-28T09:45:04.58 |
IV.RM33.EHE. | ML:1.8 | 0.0001159 | 1.7 | AML | other | m | 2021-07-28T09:45:04.10 |
IV.ATVO.HHE. | ML:1.6 | 0.00006819999999999999 | 1.02 | AML | other | m | 2021-07-28T09:45:06.71 |
IV.EL6.EHE. | ML:2.0 | 0.0001595 | 0.54 | AML | other | m | 2021-07-28T09:45:07.44 |
IV.EL6.EHN. | ML:1.9 | 0.0001228 | 1.46 | AML | other | m | 2021-07-28T09:45:08.87 |
IV.ATVO.HHN. | ML:1.5 | 0.00006175 | 0.62 | AML | other | m | 2021-07-28T09:45:09.56 |