A magnitude ML 1.1 earthquake occured in region: 4 km E Amatrice (RI), on
and geographic coordinates (lat, lon) 42.6480, 13.3350 at 11 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 |
---|---|---|---|---|
Amatrice | RI | 4 | 2657 | 2657 |
Accumoli | RI | 9 | 667 | 3324 |
Campotosto | AQ | 10 | 542 | 3866 |
Arquata del Tronto | AP | 14 | 1178 | 5044 |
Capitignano | AQ | 14 | 665 | 5709 |
Cortino | TE | 15 | 656 | 6365 |
Cittareale | RI | 15 | 482 | 6847 |
Acquasanta Terme | AP | 15 | 2916 | 9763 |
Montereale | AQ | 16 | 2581 | 12344 |
Crognaleto | TE | 16 | 1297 | 13641 |
Rocca Santa Maria | TE | 16 | 537 | 14178 |
Valle Castellana | TE | 17 | 977 | 15155 |
Fano Adriano | TE | 20 | 296 | 15451 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2021-02-16 03:33:33 |
42.6483 | 13.3352 | 11 | 2021-02-16 03:42:23 |
Sala Sismica INGV-Roma | 87195461 |
Field | Value |
---|---|
Time (UTC) | 2021-02-16 03:33:33 ± 0.05 |
Latitude | 42.6483 ± 0.0027 |
Longitude | 13.3352 ± 0.0037 |
Depth (km) | 11 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 87195461 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 308 |
Semi-minor axis of confidence ellipse (meter) | 80 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 268 |
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) | 74 |
Number of associated phases, regardless of their use for origin computation | 20 |
Number of defining phases | 20 |
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) | 0.01799 |
Epicentral distance of station farthest from the epicenter (degree) | 0.32735 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.2 |
Num. used stations | 10 |
Type of magnitude | ML |
Reference to an origin | 87195461 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-02-16 03:42:23 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.GAVE.EHZ. | 2021-02-16T03:33:45.91 | 0.6 | undecidable | manual | S | 278 | 36.3414 | 91 | -0.1 | 49 |
IV.MMO1.HNN. | 2021-02-16T03:33:43.92 | 0.6 | undecidable | manual | S | 359 | 27.8499 | 91 | 0.16 | 48 |
IV.NRCA.HHZ. | 2021-02-16T03:33:43.39 | 0.6 | undecidable | manual | S | 319 | 27.3504 | 91 | -0.23 | 48 |
IV.TERO.HHZ. | 2021-02-16T03:33:42.04 | 0.6 | undecidable | manual | S | 97 | 22.1556 | 92 | -0.19 | 48 |
IV.LNSS.HHZ. | 2021-02-16T03:33:42.81 | 0.6 | undecidable | manual | S | 258 | 24.5532 | 91 | -0.08 | 50 |
IV.RM33.EHZ. | 2021-02-16T03:33:41.00 | 0.6 | undecidable | manual | S | 213 | 18.3705 | 93 | -0.22 | 49 |
IV.GAVE.EHZ. | 2021-02-16T03:33:40.78 | 1.0 | negative | manual | P | 278 | 36.3414 | 91 | -0.1 | 24 |
IV.NRCA.HHZ. | 2021-02-16T03:33:39.43 | 0.1 | negative | manual | P | 319 | 27.3504 | 91 | -0.07 | 99 |
IV.CAMP.HHE. | 2021-02-16T03:33:39.92 | 0.6 | undecidable | manual | S | 154 | 13.875 | 102 | -0.11 | 50 |
IV.MMO1.HNN. | 2021-02-16T03:33:39.79 | 0.1 | undecidable | manual | P | 359 | 27.8499 | 91 | 0.21 | 96 |
IV.MTRA.EHZ. | 2021-02-16T03:33:39.54 | 0.6 | undecidable | manual | S | 23 | 13.0758 | 106 | -0.28 | 48 |
IV.LNSS.HHZ. | 2021-02-16T03:33:39.02 | 0.3 | positive | manual | P | 258 | 24.5532 | 91 | -0.05 | 75 |
IV.RM33.EHZ. | 2021-02-16T03:33:38.20 | 0.1 | positive | manual | P | 213 | 18.3705 | 93 | 0.09 | 100 |
IV.TERO.HHZ. | 2021-02-16T03:33:38.59 | 0.6 | undecidable | manual | P | 97 | 22.1556 | 92 | -0.1 | 49 |
IV.T1299.EHE. | 2021-02-16T03:33:38.22 | 0.6 | undecidable | manual | S | 250 | 4.5954 | 151 | 0.13 | 51 |
IV.MTRA.EHZ. | 2021-02-16T03:33:37.37 | 1.0 | undecidable | manual | P | 23 | 13.0758 | 106 | 0.07 | 25 |
IV.SMA1.EHZ. | 2021-02-16T03:33:37.61 | 0.6 | undecidable | manual | S | 180 | 1.998 | 167 | -0.23 | 49 |
IV.CAMP.HHE. | 2021-02-16T03:33:37.56 | 0.1 | undecidable | manual | P | 154 | 13.875 | 102 | 0.13 | 100 |
IV.T1299.EHE. | 2021-02-16T03:33:36.51 | 0.1 | undecidable | manual | P | 250 | 4.5954 | 151 | 0.2 | 100 |
IV.SMA1.EHZ. | 2021-02-16T03:33:36.34 | 0.6 | undecidable | manual | P | 180 | 1.998 | 167 | 0.18 | 51 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SMA1.EHN. | ML:1.1 | 0.0002075 | 1.68 | AML | other | m | 2021-02-16T03:33:37.09 |
IV.SMA1.EHE. | ML:1.3 | 0.000298 | 1.76 | AML | other | m | 2021-02-16T03:33:37.99 |
IV.MTRA.EHE. | ML:1.2 | 0.000144 | 1.08 | AML | other | m | 2021-02-16T03:33:39.66 |
IV.MTRA.EHN. | ML:1.2 | 0.000182 | 1.12 | AML | other | m | 2021-02-16T03:33:40.67 |
IV.RM33.EHN. | ML:0.9 | 0.00006145 | 0.2 | AML | other | m | 2021-02-16T03:33:41.29 |
IV.RM33.EHE. | ML:1.0 | 0.0000821 | 0.32 | AML | other | m | 2021-02-16T03:33:41.46 |
IV.TERO.HHN. | ML:1.1 | 0.00008960000000000001 | 0.06 | AML | other | m | 2021-02-16T03:33:42.05 |
IV.TERO.HHE. | ML:1.1 | 0.00008400000000000001 | 0.14 | AML | other | m | 2021-02-16T03:33:42.12 |
IV.NRCA.HHN. | ML:0.8 | 0.000029999999999999997 | 0.18 | AML | other | m | 2021-02-16T03:33:43.77 |
IV.NRCA.HHE. | ML:0.8 | 0.00003375 | 1 | AML | other | m | 2021-02-16T03:33:44.91 |