A magnitude ML 1.2 earthquake occured in region: 8 km E Cascia (PG), on
and geographic coordinates (lat, lon) 42.6840, 13.1020 at 12 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 |
---|---|---|---|---|
Cascia | PG | 8 | 3217 | 3217 |
Cittareale | RI | 9 | 482 | 3699 |
Accumoli | RI | 12 | 667 | 4366 |
Norcia | PG | 12 | 4957 | 9323 |
Monteleone di Spoleto | PG | 13 | 599 | 9922 |
Poggiodomo | PG | 14 | 117 | 10039 |
Amatrice | RI | 16 | 2657 | 12696 |
Leonessa | RI | 18 | 2435 | 15131 |
Posta | RI | 18 | 694 | 15825 |
Arquata del Tronto | AP | 19 | 1178 | 17003 |
Borbona | RI | 19 | 617 | 17620 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.2 | 2021-04-23 04:25:56 |
42.6837 | 13.1018 | 12 | 2021-04-23 04:30:51 |
Sala Sismica INGV-Roma | 89384581 |
Field | Value |
---|---|
Time (UTC) | 2021-04-23 04:25:56 ± 0.06 |
Latitude | 42.6837 ± 0.0036 |
Longitude | 13.1018 ± 0.0037 |
Depth (km) | 12 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 89384581 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 379 |
Semi-minor axis of confidence ellipse (meter) | 128 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 157 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 380.0 |
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 | 15 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.13 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.37412 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.2 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 89384581 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-23 04:30:51 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.VITU.HHZ. | 2021-04-23T04:26:28.90 | 3.0 | undecidable | manual | Pg | 0.24 | 0 | |||
IV.ATPI.EHZ. | 2021-04-23T04:26:28.18 | 3.0 | undecidable | manual | S | -0.01 | 0 | |||
IV.MURB.HNZ. | 2021-04-23T04:26:21.43 | 3.0 | undecidable | manual | S | -0.05 | 0 | |||
IV.TERO.HHZ. | 2021-04-23T04:26:09.33 | 0.1 | undecidable | manual | S | 99 | 41.5251 | 92 | -0.29 | 87 |
IV.MMO1.EHZ. | 2021-04-23T04:26:06.73 | 0.1 | undecidable | manual | S | 37 | 30.1476 | 93 | 0.14 | 97 |
IV.RM33.EHZ. | 2021-04-23T04:26:04.42 | 0.1 | undecidable | manual | S | 155 | 21.4674 | 97 | 0.15 | 98 |
IV.GAVE.EHZ. | 2021-04-23T04:26:03.04 | 0.1 | undecidable | manual | S | 273 | 16.9719 | 103 | -0.06 | 98 |
IV.TERO.HHZ. | 2021-04-23T04:26:03.94 | 1.0 | positive | manual | P | 99 | 41.5251 | 92 | 0.04 | 23 |
IV.SMA1.EHZ. | 2021-04-23T04:26:03.91 | 0.1 | undecidable | manual | S | 107 | 19.9689 | 98 | 0.04 | 96 |
IV.LNSS.HHZ. | 2021-04-23T04:26:01.44 | 0.1 | undecidable | manual | S | 209 | 10.2786 | 126 | -0.02 | 98 |
IV.MMO1.EHZ. | 2021-04-23T04:26:01.96 | 1.0 | positive | manual | P | 37 | 30.1476 | 93 | -0.19 | 23 |
IV.SMA1.EHZ. | 2021-04-23T04:26:00.70 | 0.6 | negative | manual | P | 107 | 19.9689 | 98 | 0.12 | 49 |
IV.GAVE.EHZ. | 2021-04-23T04:26:00.13 | 0.6 | undecidable | manual | P | 273 | 16.9719 | 103 | 0 | 49 |
IV.RM33.EHZ. | 2021-04-23T04:26:00.61 | 1.0 | negative | manual | P | 155 | 21.4674 | 97 | -0.2 | 23 |
IV.LNSS.HHZ. | 2021-04-23T04:25:59.25 | 0.1 | positive | manual | P | 209 | 10.2786 | 126 | 0.06 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LNSS.HHN. | ML:1.0 | 0.00010550000000000002 | 0.32 | AML | other | m | 2021-04-23T04:26:01.68 |
IV.LNSS.HHE. | ML:1.0 | 0.0001185 | 0.7 | AML | other | m | 2021-04-23T04:26:01.55 |
IV.ATPI.EHE. | ML:1.3 | 0.0000218 | 0.44 | AML | other | m | 2021-04-23T04:26:24.46 |
IV.ATPI.EHN. | ML:1.4 | 0.00002705 | 0.42 | AML | other | m | 2021-04-23T04:26:26.85 |