A magnitude ML 1.6 earthquake occured in region: 5 km S Massa Martana (PG), on
and geographic coordinates (lat, lon) 42.7350, 12.5120 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 |
---|---|---|---|---|
Massa Martana | PG | 5 | 3770 | 3770 |
Acquasparta | TR | 6 | 4778 | 8548 |
Montecastrilli | TR | 10 | 5022 | 13570 |
Todi | PG | 10 | 16851 | 30421 |
Avigliano Umbro | TR | 11 | 2558 | 32979 |
Giano dell'Umbria | PG | 12 | 3846 | 36825 |
San Gemini | TR | 14 | 5018 | 41843 |
Castel Ritaldi | PG | 16 | 3278 | 45121 |
Monte Castello di Vibio | PG | 18 | 1567 | 46688 |
Fratta Todina | PG | 18 | 1839 | 48527 |
Spoleto | PG | 19 | 38218 | 86745 |
Collazzone | PG | 19 | 3473 | 90218 |
Gualdo Cattaneo | PG | 20 | 6155 | 96373 |
Montecchio | TR | 20 | 1676 | 98049 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.6 | 2020-08-11 05:40:58 |
42.735 | 12.5125 | 8 | 2020-11-19 12:36:59 |
Bollettino Sismico Italiano INGV | 82403431 |
Reviewed Rev100 |
ML 1.6 | 2020-08-11 05:40:58 |
42.7372 | 12.5228 | 9 | 2020-08-11 05:47:17 |
Sala Sismica INGV-Roma | 81867051 |
Field | Value |
---|---|
Time (UTC) | 2020-08-11 05:40:58 ± 0.08 |
Latitude | 42.7350 ± 0.0045 |
Longitude | 12.5125 ± 0.0061 |
Depth (km) | 8 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 82403431 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 517 |
Semi-minor axis of confidence ellipse (meter) | 347 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 50 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 520.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 70 |
Number of associated phases, regardless of their use for origin computation | 31 |
Number of defining phases | 26 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.29 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.61873 |
Number of stations at which the event was observed | 20 |
Number of stations from which data was used for origin computation | 15 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.2 |
Num. used stations | 18 |
Type of magnitude | ML |
Reference to an origin | 82403431 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2020-08-28 09:30:11 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.2 |
Num. used stations | 18 |
Type of magnitude | ML |
Reference to an origin | 81867051 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-08-11 05:47:17 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ZCCA.HHZ. | 2020-08-11T05:41:49.48 | 3.0 | undecidable | manual | Sn | 0.34 | 0 | |||
IV.RNI2.HHZ. | 2020-08-11T05:41:49.49 | 3.0 | undecidable | manual | Sg | 3.57 | 0 | |||
IV.SBPO.HNZ. | 2020-08-11T05:41:34.65 | 3.0 | positive | manual | Pn | 0.4 | 0 | |||
IV.RM33.EHZ. | 2020-08-11T05:41:18.32 | 0.6 | undecidable | manual | S | 113 | 62.5929 | 50 | 0.41 | 42 |
IV.MC2.EHZ. | 2020-08-11T05:41:17.05 | 0.1 | undecidable | manual | S | 70 | 58.3971 | 50 | 0.24 | 88 |
IV.FIR.HHZ. | 2020-08-11T05:41:17.18 | 3.0 | positive | manual | P | -0.2 | 0 | |||
IV.SACS.HHZ. | 2020-08-11T05:41:15.44 | 0.3 | undecidable | manual | S | 285 | 50.7159 | 50 | 0.7 | 59 |
IV.NRCA.HHZ. | 2020-08-11T05:41:14.96 | 0.1 | undecidable | manual | S | 77 | 50.2164 | 50 | 0.35 | 88 |
IV.LNSS.HHZ. | 2020-08-11T05:41:13.40 | 0.1 | undecidable | manual | S | 109 | 45.5211 | 50 | 0.05 | 94 |
IV.MGAB.HHZ. | 2020-08-11T05:41:11.19 | 0.1 | undecidable | manual | S | 301 | 38.0286 | 50 | -0.19 | 93 |
IV.ASSB.HHZ. | 2020-08-11T05:41:10.77 | 0.1 | undecidable | manual | S | 19 | 36.1416 | 50 | -0.09 | 95 |
IV.BARO.EHZ. | 2020-08-11T05:41:10.93 | 0.3 | undecidable | manual | P | 215 | 65.8896 | 50 | 0.85 | 53 |
IV.MMO1.EHZ. | 2020-08-11T05:41:10.39 | 0.3 | undecidable | manual | P | 74 | 68.6757 | 50 | -0.12 | 67 |
IV.RM33.EHZ. | 2020-08-11T05:41:09.31 | 0.1 | undecidable | manual | P | 113 | 62.5929 | 50 | -0.25 | 87 |
IV.MURB.HHZ. | 2020-08-11T05:41:09.28 | 0.1 | undecidable | manual | P | 1 | 58.5969 | 50 | 0.33 | 87 |
IV.MC2.EHZ. | 2020-08-11T05:41:08.92 | 0.1 | undecidable | manual | P | 70 | 58.3971 | 50 | 0 | 93 |
IV.SACS.HHZ. | 2020-08-11T05:41:07.33 | 0.1 | undecidable | manual | P | 285 | 50.7159 | 50 | -0.4 | 87 |
IV.ARRO.EHZ. | 2020-08-11T05:41:07.44 | 0.3 | undecidable | manual | S | 130 | 26.9508 | 107 | -0.5 | 66 |
IV.NRCA.HHZ. | 2020-08-11T05:41:07.36 | 0.1 | positive | manual | P | 77 | 50.2164 | 50 | -0.3 | 89 |
IV.CESI.HHE. | 2020-08-11T05:41:06.46 | 0.1 | undecidable | manual | P | 47 | 43.7229 | 50 | -0.2 | 91 |
IV.LNSS.HHZ. | 2020-08-11T05:41:06.70 | 0.1 | undecidable | manual | P | 109 | 45.5211 | 50 | -0.23 | 91 |
IV.MGAB.HHZ. | 2020-08-11T05:41:05.33 | 0.1 | positive | manual | P | 301 | 38.0286 | 50 | -0.46 | 87 |
IV.ASSB.HHZ. | 2020-08-11T05:41:05.30 | 0.1 | undecidable | manual | P | 19 | 36.1416 | 50 | -0.19 | 93 |
IT.ATCC.EHZ. | 2020-08-11T05:41:05.54 | 3.0 | undecidable | manual | P | 0 | ||||
IV.CESX.HHZ. | 2020-08-11T05:41:04.31 | 0.1 | undecidable | manual | S | 157 | 15.2736 | 119 | 0.12 | 98 |
IV.ARRO.EHZ. | 2020-08-11T05:41:03.74 | 0.1 | undecidable | manual | P | 130 | 26.9508 | 107 | -0.06 | 97 |
IV.MOMA.HHZ. | 2020-08-11T05:41:02.55 | 0.1 | undecidable | manual | S | 32 | 8.9799 | 133 | 0.15 | 98 |
IT.GNU.HGZ. | 2020-08-11T05:41:02.34 | 0.1 | undecidable | manual | S | 32 | 8.9799 | 133 | -0.06 | 100 |
IV.CESX.HHZ. | 2020-08-11T05:41:01.72 | 0.1 | undecidable | manual | P | 157 | 15.2736 | 119 | 0.08 | 99 |
IT.GNU.HGZ. | 2020-08-11T05:41:00.77 | 0.1 | undecidable | manual | P | 32 | 8.9799 | 133 | 0.17 | 98 |
IV.MOMA.HHZ. | 2020-08-11T05:41:00.77 | 0.1 | positive | manual | P | 32 | 8.9799 | 133 | 0.17 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MOMA.HHN. | ML:1.7 | 0.0007849999999999999 | 0.14 | AML | other | m | 2020-08-11T05:41:03.46 |
IV.MOMA.HNN. | ML:1.7 | 0.00070557725 | 0.1312 | AML | other | m | 2020-08-11T05:41:03.47 |
IV.MOMA.HHE. | ML:1.8 | 0.00108 | 1.44 | AML | other | m | 2020-08-11T05:41:04.24 |
IV.MOMA.HNE. | ML:1.8 | 0.00095652225 | 0.1504 | AML | other | m | 2020-08-11T05:41:04.25 |
IV.CESX.HHN. | ML:1.6 | 0.0003945 | 0.34 | AML | other | m | 2020-08-11T05:41:05.71 |
IV.CESX.HHE. | ML:1.6 | 0.00038700000000000003 | 0.4 | AML | other | m | 2020-08-11T05:41:05.72 |
IV.ARRO.EHE. | ML:1.5 | 0.000189 | 1.38 | AML | other | m | 2020-08-11T05:41:09.72 |
IV.ARRO.EHN. | ML:1.6 | 0.00020250000000000002 | 1.3 | AML | other | m | 2020-08-11T05:41:09.10 |
IV.MGAB.HHN. | ML:1.7 | 0.00016849999999999998 | 0.14 | AML | other | m | 2020-08-11T05:41:12.61 |
IV.MGAB.HHE. | ML:1.6 | 0.000158 | 1 | AML | other | m | 2020-08-11T05:41:13.11 |
IV.LNSS.HHN. | ML:1.8 | 0.00018099999999999998 | 0.8 | AML | other | m | 2020-08-11T05:41:14.45 |
IV.LNSS.HHE. | ML:1.7 | 0.00014050000000000003 | 0.3 | AML | other | m | 2020-08-11T05:41:15.76 |
IV.NRCA.HHE. | ML:1.8 | 0.000154 | 0.16 | AML | other | m | 2020-08-11T05:41:16.43 |
IV.SACS.HHN. | ML:1.1 | 0.000033799999999999995 | 0.84 | AML | other | m | 2020-08-11T05:41:16.83 |
IV.NRCA.HHN. | ML:1.6 | 0.0000969 | 1.18 | AML | other | m | 2020-08-11T05:41:17.40 |
IV.SACS.HHE. | ML:1.2 | 0.00004745 | 0.22 | AML | other | m | 2020-08-11T05:41:17.54 |
IV.RM33.EHE. | ML:1.8 | 0.000117 | 0.64 | AML | other | m | 2020-08-11T05:41:19.58 |
IV.RM33.EHN. | ML:1.6 | 0.00008085 | 1.46 | AML | other | m | 2020-08-11T05:41:20.84 |