A magnitude ML 0.9 earthquake occured in region: 7 km SW Spoleto (PG), on
and geographic coordinates (lat, lon) 42.6970, 12.6770 at 14 km depth.
The earthquake was located by: Sala Sismica INGV-Roma.
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 |
---|---|---|---|---|
Spoleto | PG | 7 | 38218 | 38218 |
Acquasparta | TR | 11 | 4778 | 42996 |
Ferentillo | TR | 13 | 1913 | 44909 |
Scheggino | PG | 13 | 461 | 45370 |
Montefranco | TR | 13 | 1276 | 46646 |
Sant'Anatolia di Narco | PG | 14 | 564 | 47210 |
San Gemini | TR | 14 | 5018 | 52228 |
Castel Ritaldi | PG | 14 | 3278 | 55506 |
Arrone | TR | 15 | 2763 | 58269 |
Massa Martana | PG | 15 | 3770 | 62039 |
Terni | TR | 15 | 111501 | 173540 |
Campello sul Clitunno | PG | 16 | 2442 | 175982 |
Montecastrilli | TR | 16 | 5022 | 181004 |
Vallo di Nera | PG | 17 | 364 | 181368 |
Giano dell'Umbria | PG | 17 | 3846 | 185214 |
Polino | TR | 19 | 233 | 185447 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-09-28 01:50:35 |
42.6972 | 12.6772 | 14 | 2021-09-28 01:57:05 |
Sala Sismica INGV-Roma | 95970261 |
Field | Value |
---|---|
Time (UTC) | 2021-09-28 01:50:35 ± 0.12 |
Latitude | 42.6972 ± 0.0036 |
Longitude | 12.6772 ± 0.0037 |
Depth (km) | 14 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 95970261 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 327 |
Semi-minor axis of confidence ellipse (meter) | 219 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 51 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 330.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 107 |
Number of associated phases, regardless of their use for origin computation | 11 |
Number of defining phases | 10 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.12 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.34984 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 5 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 95970261 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-28 01:57:05 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.VCEL.EHZ. | 2021-09-28T01:50:54.63 | 3.0 | undecidable | manual | P | 0.17 | 0 | |||
IV.CESI.HHZ. | 2021-09-28T01:50:48.74 | 0.3 | undecidable | manual | S | 28 | 38.8278 | 97 | 0.07 | 72 |
IV.CESI.HHZ. | 2021-09-28T01:50:43.10 | 0.1 | undecidable | manual | P | 28 | 38.8278 | 97 | -0.13 | 92 |
IV.GAVE.EHZ. | 2021-09-28T01:50:43.11 | 0.3 | undecidable | manual | S | 92 | 17.6712 | 114 | -0.07 | 73 |
IV.MOMA.HHZ. | 2021-09-28T01:50:42.44 | 0.3 | undecidable | manual | S | 324 | 14.6742 | 121 | -0.03 | 74 |
IV.ARRO.EHZ. | 2021-09-28T01:50:42.55 | 0.3 | undecidable | manual | S | 151 | 14.9739 | 120 | 0.02 | 75 |
IV.CESX.HHZ. | 2021-09-28T01:50:41.82 | 0.3 | undecidable | manual | S | 217 | 12.2766 | 128 | -0.12 | 73 |
IV.GAVE.EHZ. | 2021-09-28T01:50:40.01 | 0.1 | undecidable | manual | P | 92 | 17.6712 | 114 | -0.05 | 97 |
IV.CESX.HHZ. | 2021-09-28T01:50:39.38 | 0.1 | undecidable | manual | P | 217 | 12.2766 | 128 | 0.03 | 100 |
IV.MOMA.HHZ. | 2021-09-28T01:50:39.76 | 0.1 | undecidable | manual | P | 324 | 14.6742 | 121 | 0.1 | 98 |
IV.ARRO.EHZ. | 2021-09-28T01:50:39.87 | 0.1 | undecidable | manual | P | 151 | 14.9739 | 120 | 0.18 | 97 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.CESX.HHE. | ML:0.8 | 0.000060950000000000004 | 0.16 | AML | other | m | 2021-09-28T01:50:42.04 |
IV.MOMA.HHE. | ML:1.0 | 0.0000813 | 1.48 | AML | other | m | 2021-09-28T01:50:42.02 |
IV.CESX.HHN. | ML:0.9 | 0.0000688 | 1.14 | AML | other | m | 2021-09-28T01:50:42.26 |
IV.MOMA.HHN. | ML:1.1 | 0.00011199999999999998 | 0.32 | AML | other | m | 2021-09-28T01:50:42.99 |
IV.GAVE.EHN. | ML:0.7 | 0.000034 | 1.5 | AML | other | m | 2021-09-28T01:50:43.84 |
IV.GAVE.EHE. | ML:0.6 | 0.000032099999999999994 | 0.22 | AML | other | m | 2021-09-28T01:50:43.90 |