A magnitude ML 1.0 earthquake occured in region: 1 km W Monterchi (AR), on
and geographic coordinates (lat, lon) 43.4840, 12.1020 at 11 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 |
---|---|---|---|---|
Monterchi | AR | 1 | 1757 | 1757 |
Citerna | PG | 2 | 3531 | 5288 |
Monte Santa Maria Tiberina | PG | 7 | 1183 | 6471 |
Anghiari | AR | 7 | 5638 | 12109 |
San Giustino | PG | 10 | 11297 | 23406 |
Sansepolcro | AR | 10 | 15884 | 39290 |
CittĂ di Castello | PG | 11 | 39913 | 79203 |
Arezzo | AR | 18 | 99543 | 178746 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.0 | 2021-07-25 17:43:51 |
43.484 | 12.1023 | 11 | 2021-12-29 11:12:17 |
Bollettino Sismico Italiano INGV | 93651371 |
Reviewed Rev100 |
ML 0.9 | 2021-07-25 17:43:52 |
43.4822 | 12.091 | 9 | 2021-07-25 17:49:14 |
Sala Sismica INGV-Roma | 93206491 |
Field | Value |
---|---|
Time (UTC) | 2021-07-25 17:43:51 ± 0.13 |
Latitude | 43.4840 ± 0.0045 |
Longitude | 12.1023 ± 0.0074 |
Depth (km) | 11 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 93651371 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 590 |
Semi-minor axis of confidence ellipse (meter) | 66 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 248 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 590.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 108 |
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) | 0.25 |
Epicentral distance of station closest to the epicenter (degree) | 0.07554 |
Epicentral distance of station farthest from the epicenter (degree) | 0.19245 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 93651371 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-08-04 05:49:52 |
Field | Value |
---|---|
Value | 0.9 |
Uncertainty | 0.1 |
Num. used stations | 4 |
Type of magnitude | ML |
Reference to an origin | 93206491 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-07-25 17:49:14 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ATMI.HHZ. | 2021-07-25T17:44:00.23 | 0.3 | undecidable | manual | S | 141 | 21.3675 | 92 | 0.36 | 69 |
IV.CRE.HHZ. | 2021-07-25T17:43:59.11 | 0.1 | undecidable | manual | S | 321 | 19.2696 | 93 | -0.21 | 94 |
IV.CAFI.HHZ. | 2021-07-25T17:43:59.64 | 0.3 | undecidable | manual | S | 213 | 20.3685 | 93 | 0.03 | 72 |
IV.SSP9.EHZ. | 2021-07-25T17:43:57.21 | 0.1 | undecidable | manual | S | 13 | 10.2786 | 121 | 0.21 | 95 |
IV.BADI.EHZ. | 2021-07-25T17:43:57.32 | 0.1 | undecidable | manual | S | 76 | 11.7771 | 114 | -0.04 | 99 |
IV.ATMC.EHN. | 2021-07-25T17:43:56.30 | 0.3 | undecidable | manual | S | 119 | 8.3805 | 131 | -0.29 | 70 |
IV.CRE.HHZ. | 2021-07-25T17:43:56.11 | 0.1 | undecidable | manual | P | 321 | 19.2696 | 93 | 0 | 98 |
IV.CAFI.HHZ. | 2021-07-25T17:43:56.42 | 0.1 | undecidable | manual | P | 213 | 20.3685 | 93 | 0.14 | 97 |
IV.ATMI.HHZ. | 2021-07-25T17:43:55.90 | 0.1 | undecidable | manual | P | 141 | 21.3675 | 92 | -0.53 | 85 |
IV.BADI.EHZ. | 2021-07-25T17:43:55.10 | 0.1 | undecidable | manual | P | 76 | 11.7771 | 114 | 0.12 | 97 |
IV.SSP9.EHZ. | 2021-07-25T17:43:54.89 | 0.1 | undecidable | manual | P | 13 | 10.2786 | 121 | 0.12 | 97 |
IV.ATMC.EHN. | 2021-07-25T17:43:54.55 | 0.1 | undecidable | manual | P | 119 | 8.3805 | 131 | 0.02 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.CAFI.HNN. | ML:1.1 | 0.00008235000000000001 | 1.16 | AML | other | m | 2021-07-25T17:43:59.84 |
IV.CAFI.HHE. | ML:0.8 | 0.0000513 | 1.7 | AML | other | m | 2021-07-25T17:43:59.05 |
IV.CAFI.HHN. | ML:1.0 | 0.0000657 | 1.4 | AML | other | m | 2021-07-25T17:44:00.83 |
IV.CAFI.HNE. | ML:0.9 | 0.000059749999999999995 | 1.22 | AML | other | m | 2021-07-25T17:44:00.06 |