A magnitude ML 0.9 earthquake occured in region: 8 km W Cittareale (RI), on
and geographic coordinates (lat, lon) 42.6350, 13.0700 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 |
---|---|---|---|---|
Cittareale | RI | 8 | 482 | 482 |
Monteleone di Spoleto | PG | 10 | 599 | 1081 |
Cascia | PG | 10 | 3217 | 4298 |
Leonessa | RI | 12 | 2435 | 6733 |
Posta | RI | 13 | 694 | 7427 |
Poggiodomo | PG | 14 | 117 | 7544 |
Borbona | RI | 15 | 617 | 8161 |
Accumoli | RI | 16 | 667 | 8828 |
Norcia | PG | 18 | 4957 | 13785 |
Amatrice | RI | 18 | 2657 | 16442 |
Montereale | AQ | 19 | 2581 | 19023 |
Polino | TR | 19 | 233 | 19256 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-12-28 19:41:35 |
42.6352 | 13.0697 | 8 | 2021-12-28 20:01:35 |
Sala Sismica INGV-Roma | 99086141 |
Field | Value |
---|---|
Time (UTC) | 2021-12-28 19:41:35 ± 0.14 |
Latitude | 42.6352 ± 0.0063 |
Longitude | 13.0697 ± 0.0086 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 99086141 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 736 |
Semi-minor axis of confidence ellipse (meter) | 182 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 217 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 740.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 82 |
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) | 0.27 |
Epicentral distance of station closest to the epicenter (degree) | 0.03867 |
Epicentral distance of station farthest from the epicenter (degree) | 0.36872 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.3 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 99086141 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-12-28 20:01:35 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.NRCA.HHZ. | 2021-12-28T19:41:43.25 | 0.6 | undecidable | manual | S | 9 | 22.2555 | 111 | -0.05 | 50 |
IV.FIAM.HNZ. | 2021-12-28T19:41:43.44 | 0.1 | undecidable | manual | P | 175 | 40.9257 | 50 | 0.34 | 91 |
IV.SMA1.EHZ. | 2021-12-28T19:41:43.25 | 0.6 | undecidable | manual | S | 91 | 21.6672 | 111 | 0.15 | 49 |
IV.GAVE.EHZ. | 2021-12-28T19:41:41.46 | 0.6 | undecidable | manual | S | 294 | 15.6732 | 118 | 0.27 | 48 |
IV.RM33.EHZ. | 2021-12-28T19:41:41.66 | 0.6 | undecidable | manual | S | 140 | 18.3705 | 115 | -0.37 | 47 |
IV.SMA1.EHZ. | 2021-12-28T19:41:39.66 | 0.6 | positive | manual | P | 91 | 21.6672 | 111 | -0.03 | 50 |
IV.NRCA.HHZ. | 2021-12-28T19:41:39.75 | 0.1 | undecidable | manual | P | 9 | 22.2555 | 111 | -0.05 | 100 |
IV.ARRO.EHZ. | 2021-12-28T19:41:39.87 | 0.1 | undecidable | manual | P | 256 | 25.5522 | 108 | -0.56 | 88 |
IV.LNSS.HHZ. | 2021-12-28T19:41:38.73 | 0.6 | undecidable | manual | S | 214 | 4.2957 | 153 | 0.42 | 48 |
IV.GAVE.EHZ. | 2021-12-28T19:41:38.76 | 0.6 | positive | manual | P | 294 | 15.6732 | 118 | 0.17 | 49 |
IV.RM33.EHZ. | 2021-12-28T19:41:38.78 | 1.0 | undecidable | manual | P | 140 | 18.3705 | 115 | -0.29 | 24 |
IV.LNSS.HHZ. | 2021-12-28T19:41:37.16 | 1.0 | undecidable | manual | P | 214 | 4.2957 | 153 | 0.23 | 25 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.LNSS.HHE. | ML:1.2 | 0.000245 | 1.48 | AML | other | m | 2021-12-28T19:41:38.87 |
IV.LNSS.HHN. | ML:0.9 | 0.0001255 | 1.58 | AML | other | m | 2021-12-28T19:41:38.88 |
IV.GAVE.EHE. | ML:1.1 | 0.000128 | 0.62 | AML | other | m | 2021-12-28T19:41:41.89 |
IV.GAVE.EHN. | ML:0.8 | 0.0000655 | 1.84 | AML | other | m | 2021-12-28T19:41:42.01 |
IV.NRCA.HHE. | ML:1.2 | 0.0001013 | 0.16 | AML | other | m | 2021-12-28T19:41:43.53 |
IV.NRCA.HHN. | ML:0.7 | 0.0000361 | 0.12 | AML | other | m | 2021-12-28T19:41:44.46 |
IV.LNSS.HNE. | ML:0.0 | 0.00020407103000000002 | 0.1408 | AML | other | m | 2021-12-28T19:41:38.87 |
IV.LNSS.HNN. | ML:0.0 | 0.000149171825 | 1.1392 | AML | other | m | 2021-12-28T19:41:39.28 |
IV.GAVE.HNE. | ML:1.1 | 0.00012927335000000002 | 0.128 | AML | other | m | 2021-12-28T19:41:41.82 |
IV.RM33.EHE. | ML:0.4 | 0.000017938925 | 0.2304 | AML | other | m | 2021-12-28T19:41:42.67 |
IV.RM33.EHN. | ML:0.6 | 0.000031664105 | 0.1536 | AML | other | m | 2021-12-28T19:41:42.24 |
IV.SMA1.EHE. | ML:0.8 | 0.00004033937 | 0.3712 | AML | other | m | 2021-12-28T19:41:43.51 |
IV.SMA1.EHN. | ML:0.7 | 0.000035791384999999996 | 0.32 | AML | other | m | 2021-12-28T19:41:43.49 |
IV.NRCA.HNE. | ML:1.2 | 0.00010174283 | 1.0112 | AML | other | m | 2021-12-28T19:41:43.03 |