A magnitude ML 1.6 earthquake occured in region: 5 km NW Accumoli (RI), on
and geographic coordinates (lat, lon) 42.7180, 13.2030 at 13 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 |
---|---|---|---|---|
Accumoli | RI | 5 | 667 | 667 |
Arquata del Tronto | AP | 10 | 1178 | 1845 |
Cittareale | RI | 12 | 482 | 2327 |
Amatrice | RI | 12 | 2657 | 4984 |
Norcia | PG | 12 | 4957 | 9941 |
Cascia | PG | 15 | 3217 | 13158 |
Montegallo | AP | 18 | 523 | 13681 |
Acquasanta Terme | AP | 18 | 2916 | 16597 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.6 | 2020-12-31 16:02:16 |
42.7185 | 13.203 | 13 | 2021-02-26 14:56:18 |
Bollettino Sismico Italiano INGV | 86883671 |
Reviewed Rev100 |
ML 1.6 | 2020-12-31 16:02:16 |
42.7152 | 13.2077 | 11 | 2020-12-31 16:08:21 |
Sala Sismica INGV-Roma | 85908171 |
Field | Value |
---|---|
Time (UTC) | 2020-12-31 16:02:16 ± 0.07 |
Latitude | 42.7185 ± 0.0036 |
Longitude | 13.2030 ± 0.0049 |
Depth (km) | 13 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 86883671 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 410 |
Semi-minor axis of confidence ellipse (meter) | 218 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 226 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 410.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 81 |
Number of associated phases, regardless of their use for origin computation | 26 |
Number of defining phases | 25 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.24 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.35973 |
Number of stations at which the event was observed | 15 |
Number of stations from which data was used for origin computation | 14 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 19 |
Type of magnitude | ML |
Reference to an origin | 85908171 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2020-12-31 16:08:21 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 21 |
Type of magnitude | ML |
Reference to an origin | 86883671 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-02-06 13:35:05 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.MMUR.HNZ. | 2020-12-31T16:02:39.24 | 3.0 | undecidable | manual | S | -0.1 | 0 | |||
IV.ARRO.EHZ. | 2020-12-31T16:02:29.12 | 0.6 | undecidable | manual | S | 247 | 38.9277 | 93 | 0.01 | 48 |
IV.CESI.HHE. | 2020-12-31T16:02:28.85 | 0.6 | undecidable | manual | S | 323 | 39.9267 | 93 | -0.55 | 43 |
IV.TERO.HHZ. | 2020-12-31T16:02:27.64 | 0.1 | undecidable | manual | S | 108 | 34.3434 | 94 | -0.27 | 92 |
IV.GAVE.EHZ. | 2020-12-31T16:02:25.51 | 0.3 | undecidable | manual | S | 263 | 25.3524 | 97 | 0 | 74 |
IV.MMO1.EHZ. | 2020-12-31T16:02:24.72 | 0.3 | undecidable | manual | S | 27 | 22.4553 | 99 | -0.03 | 74 |
IV.MC2.EHZ. | 2020-12-31T16:02:24.73 | 0.3 | undecidable | manual | S | 357 | 21.4674 | 100 | 0.25 | 72 |
IV.MF5.EHN. | 2020-12-31T16:02:24.29 | 0.3 | undecidable | manual | P | 35 | 36.4413 | 94 | 0.98 | 55 |
IV.ARRO.EHZ. | 2020-12-31T16:02:23.62 | 0.3 | undecidable | manual | P | 247 | 38.9277 | 93 | -0.06 | 72 |
IV.LNSS.HHZ. | 2020-12-31T16:02:23.62 | 0.3 | undecidable | manual | S | 226 | 18.4704 | 104 | -0.08 | 75 |
IV.CESI.HHE. | 2020-12-31T16:02:23.30 | 0.3 | undecidable | manual | P | 323 | 39.9267 | 93 | -0.55 | 64 |
IV.FDMO.HHZ. | 2020-12-31T16:02:23.39 | 0.1 | undecidable | manual | P | 345 | 36.5412 | 94 | 0.07 | 97 |
IV.SMA1.EHZ. | 2020-12-31T16:02:22.48 | 0.1 | undecidable | manual | S | 132 | 14.5743 | 113 | -0.23 | 97 |
IV.MTRA.EHZ. | 2020-12-31T16:02:22.90 | 0.1 | undecidable | manual | S | 75 | 16.3725 | 108 | -0.26 | 95 |
IV.TERO.HHZ. | 2020-12-31T16:02:22.84 | 0.3 | undecidable | manual | P | 108 | 34.3434 | 94 | -0.15 | 71 |
IV.NRCA.HHZ. | 2020-12-31T16:02:22.54 | 0.1 | undecidable | manual | S | 331 | 14.6742 | 113 | -0.2 | 97 |
IV.MC2.EHZ. | 2020-12-31T16:02:21.21 | 0.1 | undecidable | manual | P | 357 | 21.4674 | 100 | 0.2 | 97 |
IV.MMO1.EHZ. | 2020-12-31T16:02:21.24 | 0.1 | undecidable | manual | P | 27 | 22.4553 | 99 | 0.08 | 99 |
IV.GAVE.EHZ. | 2020-12-31T16:02:21.60 | 0.3 | undecidable | manual | P | 263 | 25.3524 | 97 | 0 | 75 |
IV.CAMP.HHZ. | 2020-12-31T16:02:21.68 | 0.1 | undecidable | manual | P | 140 | 26.3514 | 96 | -0.08 | 98 |
IV.T1299.HNN. | 2020-12-31T16:02:21.98 | 0.6 | undecidable | manual | S | 145 | 11.3775 | 124 | 0.02 | 51 |
IV.NRCA.HHZ. | 2020-12-31T16:02:20.09 | 0.1 | undecidable | manual | P | 331 | 14.6742 | 113 | 0.09 | 100 |
IV.SMA1.EHZ. | 2020-12-31T16:02:20.13 | 0.1 | undecidable | manual | P | 132 | 14.5743 | 113 | 0.14 | 99 |
IV.MTRA.EHZ. | 2020-12-31T16:02:20.42 | 0.1 | undecidable | manual | P | 75 | 16.3725 | 108 | 0.18 | 98 |
IV.LNSS.HHZ. | 2020-12-31T16:02:20.62 | 0.1 | undecidable | manual | P | 226 | 18.4704 | 104 | 0.06 | 99 |
IV.T1299.HNN. | 2020-12-31T16:02:19.77 | 0.1 | undecidable | manual | P | 145 | 11.3775 | 124 | 0.21 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.NRCA.HHN. | ML:1.8 | 0.0005980000000000001 | 0.18 | AML | other | m | 2020-12-31T16:02:22.74 |
IV.NRCA.HNN. | ML:1.8 | 0.0005981711499999999 | 0.1536 | AML | other | m | 2020-12-31T16:02:22.82 |
IV.SMA1.EHE. | ML:1.2 | 0.00015522025 | 0.1536 | AML | other | m | 2020-12-31T16:02:23.23 |
IV.NRCA.HHE. | ML:1.9 | 0.0007164999999999999 | 0.12 | AML | other | m | 2020-12-31T16:02:23.31 |
IV.NRCA.HNE. | ML:1.9 | 0.0006481745999999999 | 0.128 | AML | other | m | 2020-12-31T16:02:23.32 |
IV.MTRA.HNE. | ML:1.8 | 0.0004806782 | 0.2048 | AML | other | m | 2020-12-31T16:02:23.77 |
IV.MTRA.EHE. | ML:1.8 | 0.0004815 | 0.2 | AML | other | m | 2020-12-31T16:02:23.77 |
IV.MTRA.HNN. | ML:1.6 | 0.00031139475 | 0.2176 | AML | other | m | 2020-12-31T16:02:23.69 |
IV.MTRA.EHN. | ML:1.5 | 0.00027755025 | 0.2176 | AML | other | m | 2020-12-31T16:02:23.69 |
IV.LNSS.HNE. | ML:1.8 | 0.0005335966999999999 | 0.1408 | AML | other | m | 2020-12-31T16:02:23.88 |
IV.LNSS.HHE. | ML:1.9 | 0.00059100485 | 0.1152 | AML | other | m | 2020-12-31T16:02:23.87 |
IV.LNSS.HHN. | ML:1.7 | 0.00039446044999999995 | 0.1792 | AML | other | m | 2020-12-31T16:02:24.19 |
IV.LNSS.HNN. | ML:1.7 | 0.0003610118 | 0.128 | AML | other | m | 2020-12-31T16:02:24.19 |
IV.SMA1.EHN. | ML:1.2 | 0.0001307435 | 0.2816 | AML | other | m | 2020-12-31T16:02:24.87 |
IV.GAVE.EHN. | ML:1.5 | 0.0001915 | 0.26 | AML | other | m | 2020-12-31T16:02:26.37 |
IV.GAVE.EHE. | ML:1.6 | 0.00020600000000000002 | 1.82 | AML | other | m | 2020-12-31T16:02:26.97 |
IV.TERO.HHN. | ML:1.4 | 0.00009239539 | 0.064 | AML | other | m | 2020-12-31T16:02:28.44 |
IV.FDMO.HHE. | ML:0.8 | 0.000025224400000000002 | 0.128 | AML | other | m | 2020-12-31T16:02:29.53 |
IV.FDMO.HHN. | ML:0.9 | 0.00002814072 | 0.3072 | AML | other | m | 2020-12-31T16:02:30.60 |
IV.ARRO.EHE. | ML:1.2 | 0.00005567362000000001 | 1.8208 | AML | other | m | 2020-12-31T16:02:31.94 |
IV.ARRO.EHN. | ML:1.0 | 0.000035048250000000004 | 0.1664 | AML | other | m | 2020-12-31T16:02:31.49 |