A magnitude ML 1.7 earthquake occured in region: 2 km NE Montecastrilli (TR), on
and geographic coordinates (lat, lon) 42.6650, 12.5130 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 |
---|---|---|---|---|
Montecastrilli | TR | 3 | 5022 | 5022 |
Acquasparta | TR | 4 | 4778 | 9800 |
San Gemini | TR | 6 | 5018 | 14818 |
Avigliano Umbro | TR | 7 | 2558 | 17376 |
Massa Martana | PG | 13 | 3770 | 21146 |
Amelia | TR | 14 | 11897 | 33043 |
Todi | PG | 16 | 16851 | 49894 |
Terni | TR | 16 | 111501 | 161395 |
Narni | TR | 16 | 19785 | 181180 |
Lugnano in Teverina | TR | 18 | 1494 | 182674 |
Guardea | TR | 18 | 1836 | 184510 |
Montecchio | TR | 18 | 1676 | 186186 |
Giano dell'Umbria | PG | 20 | 3846 | 190032 |
Alviano | TR | 20 | 1463 | 191495 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.7 | 2020-10-22 15:02:53 |
42.6647 | 12.5127 | 8 | 2021-02-26 14:56:19 |
Bollettino Sismico Italiano INGV | 87140361 |
Reviewed Rev100 |
ML 1.6 | 2020-10-22 15:02:53 |
42.6637 | 12.522 | 8 | 2020-10-22 15:17:32 |
Sala Sismica INGV-Roma | 84030001 |
Field | Value |
---|---|
Time (UTC) | 2020-10-22 15:02:53 ± 0.1 |
Latitude | 42.6647 ± 0.0045 |
Longitude | 12.5127 ± 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 | 87140361 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 569 |
Semi-minor axis of confidence ellipse (meter) | 259 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 223 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 570.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 174 |
Number of associated phases, regardless of their use for origin computation | 26 |
Number of defining phases | 26 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.2 |
Epicentral distance of station closest to the epicenter (degree) | 0.07824 |
Epicentral distance of station farthest from the epicenter (degree) | 0.60524 |
Number of stations at which the event was observed | 13 |
Number of stations from which data was used for origin computation | 13 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.4 |
Num. used stations | 23 |
Type of magnitude | ML |
Reference to an origin | 87140361 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-02-14 09:22:12 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.2 |
Num. used stations | 20 |
Type of magnitude | ML |
Reference to an origin | 84030001 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-10-22 15:17:32 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SMA1.EHZ. | 2020-10-22T15:03:14.69 | 0.3 | undecidable | manual | S | 93 | 67.1772 | 50 | 0.5 | 65 |
IV.RM33.EHZ. | 2020-10-22T15:03:12.42 | 0.6 | undecidable | manual | S | 107 | 59.8956 | 50 | 0.19 | 47 |
IV.MC2.EHZ. | 2020-10-22T15:03:12.87 | 0.6 | undecidable | manual | S | 63 | 61.494 | 50 | 0.21 | 47 |
IV.CESI.HHZ. | 2020-10-22T15:03:09.66 | 0.6 | undecidable | manual | S | 40 | 49.4172 | 50 | 0.22 | 48 |
IV.NRCA.HHZ. | 2020-10-22T15:03:09.96 | 0.6 | undecidable | manual | S | 69 | 52.503 | 50 | -0.29 | 47 |
IV.LNSS.HHZ. | 2020-10-22T15:03:08.20 | 0.6 | undecidable | manual | S | 99 | 43.623 | 50 | 0.31 | 47 |
IV.ASSB.HHZ. | 2020-10-22T15:03:07.58 | 0.3 | undecidable | manual | S | 16 | 43.5231 | 50 | -0.31 | 71 |
IV.MGAB.HHN. | 2020-10-22T15:03:07.84 | 0.3 | undecidable | manual | S | 310 | 42.624 | 50 | 0.2 | 73 |
IV.SMA1.EHZ. | 2020-10-22T15:03:05.37 | 0.6 | positive | manual | P | 93 | 67.1772 | 50 | 0.05 | 48 |
IV.MC2.EHZ. | 2020-10-22T15:03:04.40 | 0.6 | undecidable | manual | P | 63 | 61.494 | 50 | -0.04 | 48 |
IV.GAVE.HNZ. | 2020-10-22T15:03:04.52 | 0.3 | undecidable | manual | S | 84 | 31.2465 | 105 | 0.08 | 76 |
IV.RM33.EHZ. | 2020-10-22T15:03:03.84 | 0.6 | positive | manual | P | 107 | 59.8956 | 50 | -0.35 | 46 |
IV.CESI.HHZ. | 2020-10-22T15:03:02.41 | 0.6 | undecidable | manual | P | 40 | 49.4172 | 50 | -0.17 | 48 |
IV.NRCA.HHZ. | 2020-10-22T15:03:02.67 | 0.6 | negative | manual | P | 69 | 52.503 | 50 | -0.38 | 46 |
IV.LNSS.HHZ. | 2020-10-22T15:03:01.40 | 0.6 | positive | manual | P | 99 | 43.623 | 50 | -0.28 | 48 |
IV.MGAB.HHN. | 2020-10-22T15:03:01.61 | 0.1 | undecidable | manual | P | 310 | 42.624 | 50 | 0.07 | 100 |
IV.ARRO.EHZ. | 2020-10-22T15:03:01.76 | 0.6 | undecidable | manual | S | 115 | 22.755 | 110 | 0.15 | 51 |
IV.ASSB.HHZ. | 2020-10-22T15:03:01.40 | 0.3 | undecidable | manual | P | 16 | 43.5231 | 50 | -0.28 | 71 |
IV.GAVE.HNZ. | 2020-10-22T15:02:59.25 | 0.1 | undecidable | manual | P | 84 | 31.2465 | 105 | -0.44 | 94 |
IT.GNU.HGN. | 2020-10-22T15:02:59.68 | 0.6 | undecidable | manual | S | 17 | 16.1727 | 118 | 0.17 | 51 |
IV.MOMA.HHZ. | 2020-10-22T15:02:59.52 | 0.6 | undecidable | manual | S | 17 | 16.1727 | 118 | 0 | 53 |
IV.ARRO.EHZ. | 2020-10-22T15:02:58.00 | 0.6 | negative | manual | P | 115 | 22.755 | 110 | -0.06 | 52 |
IT.GNU.HGN. | 2020-10-22T15:02:57.12 | 0.1 | undecidable | manual | P | 17 | 16.1727 | 118 | 0.28 | 100 |
IV.CESX.HHZ. | 2020-10-22T15:02:57.32 | 0.6 | undecidable | manual | S | 136 | 8.6802 | 134 | -0.08 | 53 |
IV.MOMA.HHZ. | 2020-10-22T15:02:56.90 | 0.6 | undecidable | manual | P | 17 | 16.1727 | 118 | 0.05 | 52 |
IV.CESX.HHZ. | 2020-10-22T15:02:55.73 | 0.3 | negative | manual | P | 136 | 8.6802 | 134 | 0.11 | 79 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.CESX.HHN. | ML:1.9 | 0.0013399999999999998 | 0.16 | AML | other | m | 2020-10-22T15:02:57.58 |
IV.CESX.HHE. | ML:1.9 | 0.0011935 | 0.2 | AML | other | m | 2020-10-22T15:02:58.18 |
IV.MOMA.HHN. | ML:1.8 | 0.000582 | 0.7 | AML | other | m | 2020-10-22T15:03:00.38 |
IV.MOMA.HHE. | ML:1.7 | 0.000515 | 0.34 | AML | other | m | 2020-10-22T15:03:00.81 |
IV.ARRO.EHE. | ML:1.6 | 0.00026900000000000003 | 0.36 | AML | other | m | 2020-10-22T15:03:01.71 |
IV.ARRO.EHN. | ML:1.7 | 0.0003105 | 0.22 | AML | other | m | 2020-10-22T15:03:03.32 |
IV.LNSS.HHN. | ML:1.6 | 0.000136 | 0.52 | AML | other | m | 2020-10-22T15:03:08.44 |
IV.ASSB.HHE. | ML:1.2 | 0.00004910000000000001 | 0.52 | AML | other | m | 2020-10-22T15:03:08.45 |
IV.LNSS.HHE. | ML:1.7 | 0.00016549999999999998 | 0.12 | AML | other | m | 2020-10-22T15:03:09.79 |
IV.CESI.HHE. | ML:1.4 | 0.00005824999999999999 | 1.24 | AML | other | m | 2020-10-22T15:03:10.15 |
IV.APEC.HHE. | ML:1.8 | 0.0000679 | 0.08 | AML | other | m | 2020-10-22T15:03:10.12 |
IV.ASSB.HHN. | ML:1.2 | 0.0000484 | 1.16 | AML | other | m | 2020-10-22T15:03:10.78 |
IV.CESI.HHN. | ML:1.4 | 0.000064 | 0.22 | AML | other | m | 2020-10-22T15:03:10.72 |
IV.NRCA.HHN. | ML:1.6 | 0.0000968 | 0.14 | AML | other | m | 2020-10-22T15:03:10.93 |
IV.APEC.HHN. | ML:1.8 | 0.00006305 | 0.74 | AML | other | m | 2020-10-22T15:03:12.59 |
IV.RM33.EHN. | ML:1.5 | 0.00006759999999999999 | 0.24 | AML | other | m | 2020-10-22T15:03:13.12 |
IV.NRCA.HHE. | ML:1.5 | 0.00008010000000000001 | 0.76 | AML | other | m | 2020-10-22T15:03:13.27 |
IV.RM33.EHE. | ML:1.5 | 0.000060899999999999996 | 0.22 | AML | other | m | 2020-10-22T15:03:14.41 |
IV.SMA1.EHE. | ML:1.8 | 0.0001144 | 0.84 | AML | other | m | 2020-10-22T15:03:15.42 |
IV.SMA1.EHN. | ML:1.9 | 0.00014649999999999998 | 0.28 | AML | other | m | 2020-10-22T15:03:15.49 |
IV.SEI.HHE. | ML:3.6 | 0.00147 | 0.08 | AML | other | m | 2020-10-22T15:03:39.55 |
IV.SEI.HHN. | ML:3.4 | 0.001018 | 0.68 | AML | other | m | 2020-10-22T15:03:39.55 |
IV.VIVA.HHE. | ML:3.8 | 0.005865 | 0.22 | AML | other | m | 2020-10-22T15:03:42.18 |