A magnitude ML 0.9 earthquake occured in region: 6 km E Accumoli (RI), on
and geographic coordinates (lat, lon) 42.7060, 13.3160 at 9 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 |
---|---|---|---|---|
Accumoli | RI | 6 | 667 | 667 |
Arquata del Tronto | AP | 8 | 1178 | 1845 |
Amatrice | RI | 9 | 2657 | 4502 |
Acquasanta Terme | AP | 11 | 2916 | 7418 |
Valle Castellana | TE | 15 | 977 | 8395 |
Montegallo | AP | 15 | 523 | 8918 |
Cittareale | RI | 16 | 482 | 9400 |
Campotosto | AQ | 17 | 542 | 9942 |
Rocca Santa Maria | TE | 18 | 537 | 10479 |
Cortino | TE | 18 | 656 | 11135 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.9 | 2021-12-30 20:12:23 |
42.7063 | 13.3157 | 9 | 2021-12-30 20:16:26 |
Sala Sismica INGV-Roma | 99169341 |
Field | Value |
---|---|
Time (UTC) | 2021-12-30 20:12:23 ± 0.07 |
Latitude | 42.7063 ± 0.0027 |
Longitude | 13.3157 ± 0.0037 |
Depth (km) | 9 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 99169341 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 305 |
Semi-minor axis of confidence ellipse (meter) | 141 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 259 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 310.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 68 |
Number of associated phases, regardless of their use for origin computation | 20 |
Number of defining phases | 18 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.14 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.39390 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.1 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 99169341 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-12-30 20:16:26 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.CSP1.EHZ. | 2021-12-30T20:12:37.60 | 0.6 | undecidable | manual | S | 348 | 43.7229 | 50 | -0.05 | 48 |
IV.MC2.EHZ. | 2021-12-30T20:12:32.81 | 3.0 | undecidable | manual | S | 0.32 | 0 | |||
IV.LNSS.HHZ. | 2021-12-30T20:12:32.46 | 0.6 | undecidable | manual | S | 243 | 25.2525 | 110 | -0.03 | 50 |
IV.TERO.HHZ. | 2021-12-30T20:12:32.24 | 0.6 | undecidable | manual | S | 111 | 25.2525 | 110 | -0.27 | 47 |
IV.MMO1.EHZ. | 2021-12-30T20:12:31.23 | 0.6 | undecidable | manual | S | 2 | 21.4674 | 114 | -0.05 | 50 |
IV.RM33.EHZ. | 2021-12-30T20:12:31.94 | 0.6 | undecidable | manual | S | 201 | 23.3544 | 112 | 0.04 | 50 |
IV.CSP1.EHZ. | 2021-12-30T20:12:31.50 | 1.0 | positive | manual | P | 348 | 43.7229 | 50 | -0.03 | 24 |
IV.NRCA.HHZ. | 2021-12-30T20:12:31.02 | 0.6 | undecidable | manual | S | 311 | 21.6672 | 113 | -0.32 | 47 |
IV.CAMP.HHZ. | 2021-12-30T20:12:30.66 | 0.6 | undecidable | manual | S | 158 | 20.3685 | 115 | -0.29 | 48 |
IV.TERO.HHZ. | 2021-12-30T20:12:28.63 | 0.6 | undecidable | manual | P | 111 | 25.2525 | 110 | 0.07 | 49 |
IV.MMO1.EHZ. | 2021-12-30T20:12:28.00 | 0.1 | undecidable | manual | P | 2 | 21.4674 | 114 | 0.15 | 98 |
IV.RM33.EHZ. | 2021-12-30T20:12:28.36 | 0.6 | negative | manual | P | 201 | 23.3544 | 112 | 0.15 | 49 |
IV.LNSS.HHZ. | 2021-12-30T20:12:28.53 | 0.1 | positive | manual | P | 243 | 25.2525 | 110 | -0.02 | 100 |
IV.NRCA.HHZ. | 2021-12-30T20:12:27.84 | 0.6 | negative | manual | P | 311 | 21.6672 | 113 | -0.04 | 50 |
IV.MTRA.EHZ. | 2021-12-30T20:12:27.44 | 0.6 | undecidable | manual | S | 50 | 8.6802 | 137 | -0.15 | 50 |
IV.MC2.EHZ. | 2021-12-30T20:12:27.33 | 3.0 | undecidable | manual | P | 0 | ||||
IV.SMA1.EHZ. | 2021-12-30T20:12:27.64 | 0.6 | undecidable | manual | S | 169 | 8.5803 | 138 | 0.07 | 51 |
IV.CAMP.HHZ. | 2021-12-30T20:12:27.60 | 0.1 | undecidable | manual | P | 158 | 20.3685 | 115 | -0.05 | 100 |
IV.SMA1.EHZ. | 2021-12-30T20:12:26.05 | 0.6 | undecidable | manual | P | 169 | 8.5803 | 138 | 0.34 | 48 |
IV.MTRA.EHZ. | 2021-12-30T20:12:25.96 | 0.3 | undecidable | manual | P | 50 | 8.6802 | 137 | 0.25 | 74 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SMA1.EHN. | ML:0.9 | 0.000105 | 0.32 | AML | other | m | 2021-12-30T20:12:27.75 |
IV.MTRA.EHN. | ML:0.9 | 0.0001225 | 1.62 | AML | other | m | 2021-12-30T20:12:27.81 |
IV.MTRA.EHE. | ML:0.9 | 0.00010555 | 0.9 | AML | other | m | 2021-12-30T20:12:28.29 |
IV.SMA1.EHE. | ML:0.6 | 0.00005824999999999999 | 0.36 | AML | other | m | 2021-12-30T20:12:29.29 |
IV.NRCA.HHN. | ML:0.9 | 0.000053750000000000005 | 0.16 | AML | other | m | 2021-12-30T20:12:31.23 |
IV.NRCA.HHE. | ML:0.9 | 0.000051949999999999996 | 0.62 | AML | other | m | 2021-12-30T20:12:31.95 |
IV.LNSS.HHE. | ML:1.1 | 0.00007764999999999999 | 0.34 | AML | other | m | 2021-12-30T20:12:32.46 |
IV.LNSS.HHN. | ML:1.0 | 0.000053500000000000006 | 0.16 | AML | other | m | 2021-12-30T20:12:32.58 |