A magnitude ML 1.4 earthquake occured in region: 1 km SW Massa Martana (PG), on
and geographic coordinates (lat, lon) 42.7660, 12.5150 at 9 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 | 1 | 3770 | 3770 |
Acquasparta | TR | 9 | 4778 | 8548 |
Todi | PG | 9 | 16851 | 25399 |
Giano dell'Umbria | PG | 9 | 3846 | 29245 |
Montecastrilli | TR | 13 | 5022 | 34267 |
Avigliano Umbro | TR | 14 | 2558 | 36825 |
Castel Ritaldi | PG | 15 | 3278 | 40103 |
Monte Castello di Vibio | PG | 16 | 1567 | 41670 |
Collazzone | PG | 16 | 3473 | 45143 |
Fratta Todina | PG | 16 | 1839 | 46982 |
Gualdo Cattaneo | PG | 16 | 6155 | 53137 |
San Gemini | TR | 17 | 5018 | 58155 |
Montefalco | PG | 18 | 5679 | 63834 |
Spoleto | PG | 19 | 38218 | 102052 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.4 | 2020-08-04 13:40:59 |
42.7657 | 12.5148 | 9 | 2020-11-19 12:36:57 |
Bollettino Sismico Italiano INGV | 81846921 |
Reviewed Rev100 |
ML 1.5 | 2020-08-04 13:40:59 |
42.7675 | 12.5258 | 9 | 2020-08-04 13:48:38 |
Sala Sismica INGV-Roma | 81643061 |
Field | Value |
---|---|
Time (UTC) | 2020-08-04 13:40:59 ± 0.06 |
Latitude | 42.7657 ± 0.0036 |
Longitude | 12.5148 ± 0.0086 |
Depth (km) | 9 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 81846921 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 641 |
Semi-minor axis of confidence ellipse (meter) | 344 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 85 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 640.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 136 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.16 |
Epicentral distance of station closest to the epicenter (degree) | 0.05576 |
Epicentral distance of station farthest from the epicenter (degree) | 0.33005 |
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 | 1.4 |
Uncertainty | 0.3 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 81846921 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2020-08-10 14:27:14 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.3 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 81643061 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-08-04 13:48:38 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ASSB.HHZ. | 2020-08-04T13:41:11.05 | 0.6 | undecidable | manual | S | 21 | 32.8449 | 50 | 0.02 | 49 |
IV.MGAB.HHZ. | 2020-08-04T13:41:11.84 | 0.3 | undecidable | manual | S | 297 | 36.6411 | 50 | -0.18 | 71 |
IV.ARRO.EHZ. | 2020-08-04T13:41:09.61 | 0.6 | undecidable | manual | S | 135 | 29.0487 | 107 | -0.31 | 47 |
IV.ASSB.HHZ. | 2020-08-04T13:41:06.07 | 0.3 | undecidable | manual | P | 21 | 32.8449 | 50 | -0.02 | 74 |
IV.CESX.HHZ. | 2020-08-04T13:41:06.34 | 0.3 | undecidable | manual | S | 161 | 18.3705 | 116 | -0.12 | 74 |
IV.MGAB.HHZ. | 2020-08-04T13:41:06.72 | 0.3 | undecidable | manual | P | 297 | 36.6411 | 50 | 0.05 | 73 |
IV.ARRO.EHZ. | 2020-08-04T13:41:05.62 | 0.3 | undecidable | manual | P | 135 | 29.0487 | 107 | 0.17 | 72 |
IV.CESX.HHZ. | 2020-08-04T13:41:03.64 | 0.3 | undecidable | manual | P | 161 | 18.3705 | 116 | 0.19 | 73 |
IT.GNU.HGE. | 2020-08-04T13:41:03.04 | 0.3 | undecidable | manual | S | 47 | 6.1938 | 146 | -0.11 | 76 |
IV.MOMA.HHZ. | 2020-08-04T13:41:02.96 | 0.3 | undecidable | manual | S | 47 | 6.1938 | 146 | -0.19 | 74 |
IT.GNU.HGE. | 2020-08-04T13:41:01.70 | 0.1 | undecidable | manual | P | 47 | 6.1938 | 146 | 0.16 | 100 |
IV.MOMA.HHZ. | 2020-08-04T13:41:01.70 | 0.1 | undecidable | manual | P | 47 | 6.1938 | 146 | 0.16 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.MOMA.HNE. | ML:1.9 | 0.001475703 | 0.1216 | AML | other | m | 2020-08-04T13:41:03.52 |
IV.MOMA.HHE. | ML:2.0 | 0.001577158 | 0.1216 | AML | other | m | 2020-08-04T13:41:03.52 |
IV.MOMA.HNN. | ML:1.6 | 0.00077159395 | 0.2176 | AML | other | m | 2020-08-04T13:41:04.43 |
IV.MOMA.HHN. | ML:1.7 | 0.00087307695 | 0.2176 | AML | other | m | 2020-08-04T13:41:04.32 |
IV.CESX.HHN. | ML:1.2 | 0.00013616135000000002 | 0.1984 | AML | other | m | 2020-08-04T13:41:08.95 |
IV.CESX.HHE. | ML:1.1 | 0.00011176716500000001 | 1.6032 | AML | other | m | 2020-08-04T13:41:09.96 |
IV.ARRO.EHE. | ML:1.2 | 0.00008789653 | 0.224 | AML | other | m | 2020-08-04T13:41:10.32 |
IV.ASSB.HHN. | ML:0.8 | 0.000030050685 | 0.2048 | AML | other | m | 2020-08-04T13:41:11.26 |
IV.ARRO.EHN. | ML:1.2 | 0.00008943300500000002 | 0.1792 | AML | other | m | 2020-08-04T13:41:11.69 |
IV.ASSB.HHE. | ML:0.9 | 0.000036998295 | 0.0768 | AML | other | m | 2020-08-04T13:41:12.10 |
IV.MGAB.HHN. | ML:1.5 | 0.00013201353 | 0.16 | AML | other | m | 2020-08-04T13:41:12.90 |
IV.MGAB.HNN. | ML:1.6 | 0.0001513515 | 0.3584 | AML | other | m | 2020-08-04T13:41:12.90 |
IV.MGAB.HHE. | ML:1.3 | 0.000080609765 | 0.4032 | AML | other | m | 2020-08-04T13:41:14.66 |
IV.MGAB.HNE. | ML:1.7 | 0.00017642904999999996 | 0.8448 | AML | other | m | 2020-08-04T13:41:16.68 |