A magnitude ML 1.0 earthquake occured in region: 5 km W Amatrice (RI), on
and geographic coordinates (lat, lon) 42.6480, 13.2340 at 12 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
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 | 5 | 2657 | 2657 |
Accumoli | RI | 5 | 667 | 3324 |
Cittareale | RI | 7 | 482 | 3806 |
Montereale | AQ | 14 | 2581 | 6387 |
Arquata del Tronto | AP | 15 | 1178 | 7565 |
Campotosto | AQ | 15 | 542 | 8107 |
Capitignano | AQ | 15 | 665 | 8772 |
Borbona | RI | 17 | 617 | 9389 |
Posta | RI | 18 | 694 | 10083 |
Cascia | PG | 20 | 3217 | 13300 |
Acquasanta Terme | AP | 20 | 2916 | 16216 |
Norcia | PG | 20 | 4957 | 21173 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.0 | 2021-04-16 22:55:17 |
42.6482 | 13.2342 | 12 | 2021-07-12 16:55:08 |
Bollettino Sismico Italiano INGV | 89596501 |
Reviewed Rev100 |
ML 1.0 | 2021-04-16 22:55:17 |
42.6537 | 13.2268 | 10 | 2021-04-16 23:00:00 |
Sala Sismica INGV-Roma | 89161051 |
Field | Value |
---|---|
Time (UTC) | 2021-04-16 22:55:17 ± 0.06 |
Latitude | 42.6482 ± 0.0045 |
Longitude | 13.2342 ± 0.0037 |
Depth (km) | 12 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 89596501 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 442 |
Semi-minor axis of confidence ellipse (meter) | 247 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 353 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 440.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 83 |
Number of associated phases, regardless of their use for origin computation | 15 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.21 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.27339 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.2 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 89161051 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-16 23:00:00 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.2 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 89596501 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-05-04 09:47:57 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.TERO.HHZ. | 2021-04-16T22:55:27.39 | 0.1 | undecidable | manual | S | 95 | 30.3474 | 91 | -0.22 | 95 |
IV.NRCA.HHZ. | 2021-04-16T22:55:25.46 | 0.1 | undecidable | manual | S | 335 | 22.755 | 93 | -0.14 | 98 |
IV.MTRA.EHZ. | 2021-04-16T22:55:24.15 | 0.1 | undecidable | manual | S | 48 | 17.871 | 95 | -0.16 | 98 |
IV.MMO1.EHZ. | 2021-04-16T22:55:23.19 | 3.0 | negative | manual | Pg | 0.11 | 0 | |||
IV.LNSS.HHZ. | 2021-04-16T22:55:23.79 | 0.1 | undecidable | manual | S | 252 | 16.5723 | 97 | -0.17 | 99 |
IV.TERO.HHZ. | 2021-04-16T22:55:23.19 | 0.1 | undecidable | manual | P | 95 | 30.3474 | 91 | 0.03 | 99 |
IV.RM33.EHZ. | 2021-04-16T22:55:23.43 | 0.1 | undecidable | manual | S | 186 | 15.4734 | 99 | -0.24 | 98 |
IV.NRCA.HHZ. | 2021-04-16T22:55:22.07 | 0.1 | undecidable | manual | P | 335 | 22.755 | 93 | 0.08 | 100 |
IV.SMA1.EHZ. | 2021-04-16T22:55:22.09 | 0.3 | undecidable | manual | S | 103 | 8.4804 | 130 | 0.12 | 75 |
IV.MTRA.EHZ. | 2021-04-16T22:55:21.44 | 0.1 | undecidable | manual | P | 48 | 17.871 | 95 | 0.19 | 98 |
IV.RM33.EHZ. | 2021-04-16T22:55:21.03 | 0.1 | undecidable | manual | P | 186 | 15.4734 | 99 | 0.15 | 99 |
IV.LNSS.HHZ. | 2021-04-16T22:55:21.14 | 0.1 | undecidable | manual | P | 252 | 16.5723 | 97 | 0.1 | 100 |
IV.T1299.HNN. | 2021-04-16T22:55:20.97 | 0.1 | undecidable | manual | S | 111 | 4.1958 | 154 | -0.31 | 99 |
IV.SMA1.EHZ. | 2021-04-16T22:55:20.21 | 0.1 | undecidable | manual | P | 103 | 8.4804 | 130 | 0.31 | 97 |
IV.T1299.HNN. | 2021-04-16T22:55:19.68 | 0.1 | undecidable | manual | P | 111 | 4.1958 | 154 | 0.18 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.SMA1.EHE. | ML:1.6 | 0.0005195 | 0.3 | AML | other | m | 2021-04-16T22:55:22.46 |
IV.SMA1.EHN. | ML:1.1 | 0.0001495 | 0.66 | AML | other | m | 2021-04-16T22:55:22.53 |
IV.RM33.EHN. | ML:1.0 | 0.0000885 | 0.32 | AML | other | m | 2021-04-16T22:55:23.77 |
IV.RM33.EHE. | ML:0.9 | 0.0000718 | 0.28 | AML | other | m | 2021-04-16T22:55:24.11 |
IV.MTRA.EHN. | ML:1.2 | 0.000128 | 0.16 | AML | other | m | 2021-04-16T22:55:24.36 |
IV.MTRA.EHE. | ML:1.1 | 0.0000975 | 0.3 | AML | other | m | 2021-04-16T22:55:25.26 |
IV.LNSS.HHE. | ML:0.8 | 0.000051250000000000006 | 0.08 | AML | other | m | 2021-04-16T22:55:25.56 |
IV.NRCA.HHN. | ML:1.2 | 0.00009515 | 0.1 | AML | other | m | 2021-04-16T22:55:25.61 |
IV.NRCA.HHE. | ML:1.2 | 0.00009645 | 1.04 | AML | other | m | 2021-04-16T22:55:26.61 |
IV.LNSS.HHN. | ML:0.8 | 0.0000491 | 0.82 | AML | other | m | 2021-04-16T22:55:26.55 |
IV.TERO.HHN. | ML:1.0 | 0.0000471 | 0.06 | AML | other | m | 2021-04-16T22:55:27.55 |
IV.TERO.HHE. | ML:0.9 | 0.000036400000000000004 | 1.04 | AML | other | m | 2021-04-16T22:55:28.55 |