A magnitude ML 0.9 earthquake occured in region: 7 km SE Norcia (PG), on
and geographic coordinates (lat, lon) 42.7400, 13.1400 at 8 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 |
---|---|---|---|---|
Norcia | PG | 7 | 4957 | 4957 |
Accumoli | RI | 10 | 667 | 5624 |
Cascia | PG | 11 | 3217 | 8841 |
Arquata del Tronto | AP | 13 | 1178 | 10019 |
Cittareale | RI | 14 | 482 | 10501 |
Poggiodomo | PG | 17 | 117 | 10618 |
Castelsantangelo sul Nera | MC | 17 | 281 | 10899 |
Amatrice | RI | 17 | 2657 | 13556 |
Preci | PG | 18 | 724 | 14280 |
Monteleone di Spoleto | PG | 18 | 599 | 14879 |
Montegallo | AP | 20 | 523 | 15402 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-04-05 22:11:35 |
42.7402 | 13.1398 | 8 | 2021-04-05 22:17:21 |
Sala Sismica INGV-Roma | 88803781 |
Field | Value |
---|---|
Time (UTC) | 2021-04-05 22:11:35 ± 0.18 |
Latitude | 42.7402 ± 0.0027 |
Longitude | 13.1398 ± 0.0049 |
Depth (km) | 8 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 88803781 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 399 |
Semi-minor axis of confidence ellipse (meter) | 100 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 95 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 400.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 94 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 18 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.18 |
Epicentral distance of station closest to the epicenter (degree) | 0.09533 |
Epicentral distance of station farthest from the epicenter (degree) | 0.34084 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.2 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 88803781 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-05 22:17:21 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MF5.EHZ. | 2021-04-05T22:11:49.72 | 0.6 | undecidable | manual | S | 43 | 37.8288 | 50 | 0.68 | 41 |
IV.RM33.EHZ. | 2021-04-05T22:11:44.80 | 0.6 | undecidable | manual | S | 167 | 26.3514 | 106 | -0.46 | 45 |
IV.MMO1.EHZ. | 2021-04-05T22:11:44.18 | 0.6 | undecidable | manual | S | 41 | 23.2545 | 108 | -0.06 | 49 |
IV.SMA1.EHZ. | 2021-04-05T22:11:43.42 | 0.6 | undecidable | manual | S | 127 | 20.0688 | 111 | 0.24 | 47 |
IV.GAVE.EHZ. | 2021-04-05T22:11:43.72 | 0.6 | undecidable | manual | S | 255 | 20.6682 | 110 | 0.33 | 47 |
IV.MF5.EHZ. | 2021-04-05T22:11:43.32 | 1.0 | negative | manual | P | 43 | 37.8288 | 50 | -0.09 | 23 |
IV.LNSS.HHZ. | 2021-04-05T22:11:42.31 | 0.6 | undecidable | manual | S | 208 | 17.2716 | 114 | 0.03 | 50 |
IV.T1299.EHN. | 2021-04-05T22:11:42.13 | 0.6 | undecidable | manual | S | 135 | 16.5723 | 115 | 0.08 | 48 |
IV.MC2.EHE. | 2021-04-05T22:11:42.77 | 0.6 | undecidable | manual | S | 12 | 19.3695 | 112 | -0.19 | 49 |
IV.MMO1.EHZ. | 2021-04-05T22:11:40.43 | 0.6 | negative | manual | P | 41 | 23.2545 | 108 | -0.21 | 47 |
IV.RM33.EHZ. | 2021-04-05T22:11:40.85 | 1.0 | undecidable | manual | P | 167 | 26.3514 | 106 | -0.38 | 22 |
IV.NRCA.HHZ. | 2021-04-05T22:11:40.13 | 0.6 | undecidable | manual | S | 349 | 10.5783 | 126 | -0.12 | 50 |
IV.GAVE.EHZ. | 2021-04-05T22:11:40.25 | 0.6 | undecidable | manual | P | 255 | 20.6682 | 110 | 0.1 | 49 |
IV.MC2.EHE. | 2021-04-05T22:11:39.88 | 0.1 | undecidable | manual | P | 12 | 19.3695 | 112 | -0.02 | 99 |
IV.LNSS.HHZ. | 2021-04-05T22:11:39.42 | 1.0 | undecidable | manual | P | 208 | 17.2716 | 114 | -0.09 | 24 |
IV.SMA1.EHZ. | 2021-04-05T22:11:39.98 | 1.0 | negative | manual | P | 127 | 20.0688 | 111 | -0.05 | 25 |
IV.T1299.EHN. | 2021-04-05T22:11:39.40 | 0.1 | undecidable | manual | P | 135 | 16.5723 | 115 | 0.02 | 100 |
IV.NRCA.HHZ. | 2021-04-05T22:11:38.24 | 0.1 | positive | manual | P | 349 | 10.5783 | 126 | -0.1 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHE. | ML:1.2 | 0.0002245 | 0.32 | AML | other | m | 2021-04-05T22:11:40.21 |
IV.NRCA.HHN. | ML:0.9 | 0.000122 | 1.54 | AML | other | m | 2021-04-05T22:11:40.01 |
IV.LNSS.HHE. | ML:1.0 | 0.00008565000000000001 | 1.28 | AML | other | m | 2021-04-05T22:11:43.02 |
IV.SMA1.EHN. | ML:1.1 | 0.00009255 | 0.32 | AML | other | m | 2021-04-05T22:11:43.76 |
IV.LNSS.HHN. | ML:0.9 | 0.00006964999999999999 | 0.14 | AML | other | m | 2021-04-05T22:11:44.25 |
IV.SMA1.EHE. | ML:1.0 | 0.0000739 | 0.34 | AML | other | m | 2021-04-05T22:11:45.57 |
IV.NRCA.HNE. | ML:1.2 | 0.00021912144999999998 | 0.1408 | AML | other | m | 2021-04-05T22:11:40.28 |
IV.NRCA.HNN. | ML:1.0 | 0.00015219080499999997 | 0.3328 | AML | other | m | 2021-04-05T22:11:40.79 |
IV.GAVE.EHE. | ML:0.7 | 0.000041395390000000006 | 0.1408 | AML | other | m | 2021-04-05T22:11:45.63 |
IV.GAVE.EHN. | ML:0.8 | 0.00004493544 | 0.2432 | AML | other | m | 2021-04-05T22:11:45.72 |
IV.RM33.EHE. | ML:0.5 | 0.0000210390645 | 0.3072 | AML | other | m | 2021-04-05T22:11:45.88 |
IV.RM33.EHN. | ML:0.5 | 0.000021681525 | 0.256 | AML | other | m | 2021-04-05T22:11:44.96 |